Trichloromethylsilane

149.48

149.48

1361381

200-902-6

UIR5I18638

0301

77069

1250

DTXSID4026426

COLORLESS LIQUID

29310095

0

4.19

colorless liquid

1.27 g/cm³ @ Temp: 25 °C

-90 °C

66.4 °C

5 °F

1.434

Solubility in water: reaction

Flammables area

150 mm Hg ( 25 °C)

5.2 (vs air)

Oral-rat LD50: 1000 mg/kg; inhalation-mouse LC50: 2572 mg/m3/2 hours

In case of open flame, strong oxidant is combustible; in case of high temperature or water decomposes toxic gas hydrogen chloride

5.5-10.4%(V)

ACRID ODOR, SHARP LIKE HYDROCHLORIC ACID

Organo-functional silanes are noted for their ability to bond organic polymer systems to inorganic substrates. /Silane cmpd/|The reaction of organosilanes with halogens and halogen cmpd usually proceeds in good yield through cleavage of the Si--H bond and formation of the silicon-halogen bond. Reaction with fluorine, however, does not proceed satisfactorily because of cleavage of not only the Si--H but also C--Si and C--H bonds. Direct halogenation with chlorination, bromine, and iodine proceeds smoothly, however. /Organosilanes/|Hydroxyl radical reaction rate constant = 1.50X10-13 cu cm/molec sec at 25 °C (est)

Highly flammable. Fumes in air. Reacts violently with water, steam, moist air, alcohols, acetone, light metals with generation of heat and combustible (H2) and corrosive (HCl) gases. On contact with air it gives off HCl gas. [Handling Chemicals Safely 1980. p. 924]. Methyltrichlorosilane reacts vigorously with water to generate gaseous HCl. Based on a scenario where the chemical is spilled into an excess of water (at least 5 fold excess of water), half of the maximum theoretical yield of Hydrogen Chloride gas will be created in 1.4 minutes. Experimental details are in the following: "Development of the Table of Initial Isolation and Protective Distances for the 2008 Emergency Response Guidebook", ANL/DIS-09-2, D.F. Brown, H.M. Hartmann, W.A. Freeman, and W.D. Haney, Argonne National Laboratory, Argonne, Illinois, June 2009.

Chlorosilanes

Highly Flammable

Chlorosilanes, such as METHYLTRICHLOROSILANE, are compounds in which silicon is bonded to from one to four chlorine atoms with other bonds to hydrogen and/or alkyl groups. Chlorosilanes react with water, moist air, or steam to produce heat and toxic, corrosive fumes of hydrogen chloride. They may also produce flammable gaseous H2. They can serve as chlorination agents. Chlorosilanes react vigorously with both organic and inorganic acids and with bases to generate toxic or flammable gases.

greater than 760 °F (USCG, 1999)|>760 °F (>404 °C)|490 °C

-3,000 BTU/LB (EST)

Lower flammable limit: 7.6% by volume; Upper flammable limit: 11.9% by volume

The vapour is heavier than air and may travel along the ground; distant ignition possible.

89.3 BTU/LB

I

3

UN 1250 3/PG 1

1

11-14-36/37/38-37-35-22-21-20

26-39-45-36/37/39

VV4550000

F,Xi,C

The warehouse is ventilated, low temperature and dry; stored separately from oxidants and acids

Explosive when mixed with air

Stable, but reacts violently with water. Highly flammable. Incompatible with moisture, water, strong bases, strong acids, strong oxidizing agents.

P210-P261-P280-P303 + P361 + P353-P305 + P351 + P338-P370 + P378

H225-H302 + H312-H314-H331

SRP: The most favorable course of action is to use an alternative chemical product with less inherent propensity for occupational exposure or environmental contamination. Recycle any unused portion of the material for its approved use or return it to the manufacturer or supplier. Ultimate disposal of the chemical must consider: the material's impact on air quality; potential migration in soil or water; effects on animal, aquatic, and plant life; and conformance with environmental and public health regulations.

Silane and chlorosilanes can explode when mixed with various halocarbons and ignited.|... Can react vigorously with oxidizing materials.|Methyl trichlorosilane evolves white fumes with moist air. It reacts violently with water with the evolution of heat and white acid fumes.|... Reacts violently with water and moist air to produce hydrogen chloride ... Attacks metals like aluminium and magnesium.

USEPA; Chemical Profile: Methyltrichlorosilane (1985). Aspects covered in this data sheet: exposure limitations; personal protective equipment; fire hazards; fire fighting; disposal; first aid; spills.

Toxic hydrogen chloride and phosgene gases may form in fires. Reacts with water or steam to form hydrochloric acid. Vapor forms flammable mixture with air. May form explosive mixture in air. Avoid contact with water or moist air. (EPA, 1998)|Highly flammable. Gives off irritating or toxic fumes (or gases) in a fire. Vapour/air mixtures are explosive.|Corrosives, Flammable - 3rd degree, Reactive - 2nd degree

|Danger|H225: Highly Flammable liquid and vapor [Danger Flammable liquids]|P210, P233, P240, P241, P242, P243, P261, P264, P271, P280, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P370+P378, P403+P233, P403+P235, P405, and P501|H225 (100%): Highly Flammable liquid and vapor [Danger Flammable liquids]|Aggregated GHS information provided by 2318 companies from 12 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.|P210, P233, P240, P241, P242, P243, P260, P261, P264, P270, P271, P280, P301+P312, P301+P330+P331, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P310, P312, P321, P322, P330, P363, P370+P378, P403+P233, P403+P235, P405, and P501

Excerpt from ERG Guide 155 [Substances - Toxic and/or Corrosive (Flammable / Water-Sensitive)]: As an immediate precautionary measure, isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters (75 feet) for solids. SPILL: See ERG Table 1 - Initial Isolation and Protective Action Distances on the UN/NA 1250 datasheet. FIRE: If tank, rail car or tank truck is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions. (ERG, 2016)

Excerpt from ERG Guide 155 [Substances - Toxic and/or Corrosive (Flammable / Water-Sensitive)]: ELIMINATE all ignition sources (no smoking, flares, sparks or flames in immediate area). All equipment used when handling the product must be grounded. Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. A vapor-suppressing foam may be used to reduce vapors. FOR CHLOROSILANES, use AFFF alcohol-resistant medium-expansion foam to reduce vapors. DO NOT GET WATER on spilled substance or inside containers. Use water spray to reduce vapors or divert vapor cloud drift. Avoid allowing water runoff to contact spilled material. Prevent entry into waterways, sewers, basements or confined areas. SMALL SPILL: Cover with DRY earth, DRY sand or other non-combustible material followed with plastic sheet to minimize spreading or contact with rain. Use clean, non-sparking tools to collect material and place it into loosely covered plastic containers for later disposal. (ERG, 2016)

For emergency situations, wear a positive pressure, pressure-demand, full facepiece self-contained breathing apparatus (SCBA) or pressure- demand supplied air respirator with escape SCBA and a fully-encapsulating, chemical resistant suit. (EPA, 1998)|... /Protective/ equipment should ... /include/ corrosion-resistant & impervious suits ... foot, ... hand & arm, ... head, ... and eye & face protection; where corrosive gases may be expected ... Respiratory protective equipment is required... Natural rubbers, synthetic rubbers, polyvinyl chloride, polypropylene or polyethylene either in sheet form or with fabric backing are suitable /for personal protective equipment/. /Corrosive substances/|... Acid-vapor type respiratory protection ...|... Positive pressure self-contained breathing apparatus.|Face shield, or eye protection in combination with breathing protection.

... Silanes ... form spontaneously flammable ... mixtures with air. /Silanes/|... Trichlorosilane is highly flammable. /Trichlorosilane/

Vapor may explode if ignited in enclosed area.|... Silanes ... form spontaneously ... explosive mixtures with air. /Silanes/|Explosive limits , vol% in air: 7.2-11.9

If material on fire or involved in fire: do not extinguish fire unless flow can be stopped. Use "alcohol" foam, dry chemical or carbon dioxide. Cool all affected containers with flooding quantities of water. Apply water from as far a distance as possible. Do not use water on material itself. If large quantities of combustibles are involved, use water in flooding quantities as spray and fog. Use water spray to knock-down vapors.|Use dry chemical, foam, carbon dioxide, or water spray. Water may be ineffective. Use water spray to keep fire exposed containers cool. Approach fire from upwind to avoid hazardous vapors and toxic decomposition products.|Aqueous film forming foam (AFFF). Powder. Carbon dioxide. NO hydrous agents. NO water.

Vapors are heavier than air and may travel to a source of ignition and flash back.|Containers may explode in fire.|Reacts violently with fire extinguishing agents such as water.

Evacuate danger area! Consult an expert! Collect leaking liquid in sealable, dry containers; do not use plastic containers. Absorb remaining liquid in dry sand or inert absorbent and remove to safe place. Do NOT wash away into sewer. (Extra personal protection: complete protective clothing including self-contained breathing apparatus.)|Eliminate all ignition sources. Stop or control the leak, if this can be done without undue risk. Use water spray to cool and disperse vapors and protect personnel. Control runoff and isolate discharged material for proper disposal.

... Preventive measures should be directed primarily at preventing or minimizing contact between corrosive substances & skin, mucous membranes & eyes. ... Adequate ventilation & exhaust arrangements, whether general or local, should be provided whenever corrosive gases or dusts are present. /Corrosive substances/|The most satisfactory method of ensuring worker protection is to prevent ... contact with corrosive substances by utilizing only closed-circuit apparatus. ... It is good practice to install emergency showers at all strategic locations ... Bath tubs filled with clean water can also provide valuable service in ... emergency. /Corrosive substances/|Caution: silanes are toxic. Avoid contact with skin and eyes. Use effective fume removal device. /Silanes/|SRP: The scientific literature for the use of contact lenses in industry is conflicting. The benefit or detrimental effects of wearing contact lenses depend not only upon the substance, but also on factors including the form of the substance, characteristics and duration of the exposure, the uses of other eye protection equipment, and the hygiene of the lenses. However, there may be individual substances whose irritating or corrosive properties are such that the wearing of contact lenses would be harmful to the eye. In those specific cases, contact lenses should not be worn. In any event, the usual eye protection equipment should be worn even when contact lenses are in place.|For more Preventive Measures (Complete) data for METHYLTRICHLOROSILANE (8 total), please visit the HSDB record page.

If ... THERE IS NO FIRE, go directly to the Table of Initial Isolation and Protective Action Distances /(see table below)/ ... to obtain initial isolation and protective action distances. IF THERE IS A FIRE, or IF A FIRE IS INVOLVED, go directly to the appropriate guide /(see guide(s) below)/ and use the evacuation information shown under PUBLIC SAFETY.|Table of Water-Reactive Materials Which Produce Toxic Gases|/GUIDE 155: SUBSTANCES - TOXIC AND/OR CORROSIVE (FLAMMABLE/WATER-SENSITIVE)/ First Aid: Move victim to fresh air. Call 911 or emergency medical service. Give artificial respiration if victim is not breathing. Do not use mouth-to-mouth method if victim ingested or inhaled the substance; give artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device. Administer oxygen if breathing is difficult. Remove and isolate contaminated clothing and shoes. In case of contact with substance, immediately flush skin or eyes with running water for at least 20 minutes. For minor skin contact, avoid spreading material on unaffected skin. Keep victim warm and quiet. Effects of exposure (inhalation, ingestion or skin contact) to substance may be delayed. Ensure that medical personnel are aware of the material(s) involved and take precautions to protect themselves.|/GUIDE 155: SUBSTANCES - TOXIC AND/OR CORROSIVE (FLAMMABLE/WATER-SENSITIVE)/ Spill or Leak: ELIMINATE all ignition sources (no smoking, flares, sparks or flames in immediate area). All equipment used when handling the product must be grounded. Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. A vapor suppressing foam may be used to reduce vapors. ... DO NOT GET WATER on spilled substance or inside containers. Use water spray to reduce vapors or divert vapor cloud drift. Avoid allowing water runoff to contact spilled material. Prevent entry into waterways, sewers, basements or confined areas. Small spills: Cover with DRY earth, DRY sand or other non-combustible material followed with plastic sheet to minimize spreading or contact with rain. Use clean non-sparking tools to collect material and place it into loosely covered plastic containers for later disposal.|For more DOT Emergency Guidelines (Complete) data for METHYLTRICHLOROSILANE (10 total), please visit the HSDB record page.

No person may /transport,/ offer or accept a hazardous material for transportation in commerce unless that person is registered in conformance ... and the hazardous material is properly classed, described, packaged, marked, labeled, and in condition for shipment as required or authorized by ... /the hazardous materials regulations (49 CFR 171-177)./|The International Air Transport Association (IATA) Dangerous Goods Regulations are published by the IATA Dangerous Goods Board pursuant to IATA Resolutions 618 and 619 and constitute a manual of industry carrier regulations to be followed by all IATA Member airlines when transporting hazardous materials.|The International Maritime Dangerous Goods Code lays down basic principles for transporting hazardous chemicals. Detailed recommendations for individual substances and a number of recommendations for good practice are included in the classes dealing with such substances. A general index of technical names has also been compiled. This index should always be consulted when attempting to locate the appropriate procedures to be used when shipping any substance or article.

Vapor /is/ irritating to eyes, nose & throat.

Evacuate danger area! Consult an expert! Personal protection: complete protective clothing including self-contained breathing apparatus. Do NOT wash away into sewer. Collect leaking and spilled liquid in sealable dry non-plastic containers as far as possible. Absorb remaining liquid in dry sand or inert absorbent. Then store and dispose of according to local regulations.

Fireproof. Separated from oxidants. Cool. Dry. Well closed.

No indication can be given about the rate at which a harmful concentration of this substance in the air is reached on evaporation at 20 °C.

The substance is corrosive to the eyes, skin and respiratory tract. Corrosive on ingestion. Inhalation may cause lung oedema. Exposure could cause death. Medical observation is indicated.

NO open flames, NO sparks and NO smoking. NO contact with hot surfaces. Closed system, ventilation, explosion-proof electrical equipment and lighting. Do NOT use compressed air for filling, discharging, or handling.

STRICT HYGIENE! IN ALL CASES CONSULT A DOCTOR!

Use closed system or ventilation.

Protective clothing.

Wear face shield or eye protection in combination with breathing protection.

| 4 - Materials that, under emergency conditions, can be lethal.| 3 - Liquids and solids that can be ignited under almost all ambient temperature conditions. Materials produce hazardous atmospheres with air under almost all ambient temperatures or, though unaffected by ambient temperatures, are readily ignited under almost all conditions.| 2 - Materials that readily undergo violent chemical changes at elevated temperatures and pressures.|W - No water: Materials that react violently or explosively with water.

Releases of CERCLA hazardous substances are subject to the release reporting requirement of CERCLA section 103, codified at 40 CFR part 302, in addition to the requirements of 40 CFR part 355. Methyltrichlorosilane is an extremely hazardous substance (EHS) subject to reporting requirements when stored in amounts in excess of its threshold planning quantity (TPQ) of 500 lbs.

moderately toxic

LD50 Rat oral 0.8 g/kg /From table/|LD50 Rat ip approx 0.06 g/kg /From table/

/OTHER TOXICITY INFORMATION/ Rapid hydrolysis precludes measurements. Possible toxic effects may be due to formation of hydrochloric acid.

Methyltrichlorosilane's production and use as an intermediate in silicone synthesis(1) may result in its release to the environment through various waste streams(SRC).

TERRESTRIAL FATE: All silicon chlorides are immediately and completely hydrolyzed by water(1) and methyltrichlorosilane has been reported to hydrolyze in water releasing hydrochloric acid(2). Volatilization from moist soil surfaces, adsorption to soil and sediment as well as biodegradation are not expected to be important fate processes when compared to decomposition in water. Methyltrichlorosilane may volatilize from dry soil surfaces(SRC) based upon a vapor pressure of 167 mm Hg(3).|AQUATIC FATE: All silicon chlorides are immediately and completely hydrolyzed by water(1) and methyltrichlorosilane has been reported to hydrolyze in water, releasing hydrochloric acid(2). Due to the rapid decomposition in water volatilization, bioconcentration and biodegradation are not expected to be important fate processes(SRC).|ATMOSPHERIC FATE: According to a model of gas/particle partitioning of semivolatile organic compounds in the atmosphere(1), methyltrichlorosilane, which has a vapor pressure of 167 mm Hg at 25 °C(2), is expected to exist solely as a vapor in the ambient atmosphere. Vapor-phase methyltrichlorosilane is degraded in the atmosphere by reaction with photochemically-produced hydroxyl radicals(SRC); the half-life for this reaction in air is estimated to be 36 days(SRC), calculated from its rate constant of 1.5X10-13 cu cm/molecule-sec at 25 °C(SRC) that was derived using a structure estimation method(3). Methyl silanes are transparent to UV radiation >290 nm(4) and therefore methyltrichlorosilane is not expected to undergo direct photolytic degradation(SRC).

The rate constant for the vapor-phase reaction of methyltrichlorosilane with photochemically-produced hydroxyl radicals has been estimated as 1.5X10-13 cu cm/molecule-sec at 25 °C(SRC) using a structure estimation method(1). This corresponds to an atmospheric half-life of about 36 days at an atmospheric concentration of 5X10+5 hydroxyl radicals per cu cm(1). All silicon chlorides are immediately and completely hydrolyzed by water(2) and methyltrichlorosilane has been reported to hydrolyze in water, releasing hydrochloric acid(3). Methyl silanes are transparent to UV radiation >290 nm(4) and therefore methyltrichlorosilane is not expected to undergo direct photolytic degradation(SRC).

Methyltrichlorosilane has been reported to hydrolyze immediately upon contact with water(1) and therefore bioconcentration of methyltrichlorosilane is not expected.

All silicon chlorides are immediately and completely hydrolyzed by water(1) and methyltrichlorosilane has been reported to hydrolyze in water releasing hydrochloric acid(2). Decomposition of methyltricholorsilane is expected to occur more rapidly than adsorption(SRC).

All silicon chlorides are immediately and completely hydrolyzed by water(1) and methyltrichlorosilane has been reported to hydrolyze in water, releasing hydrochloric acid(2). Decomposition of methyltricholorsilane is expected to occur more rapidly than volatilization(SRC). Methyltrichlorosilane may volatilize from dry soil surfaces(SRC) based upon a vapor pressure of 167 mm Hg(3).

NIOSH (NOES Survey 1981-1983) has statistically estimated that 1,755 workers (1,191 of these are female) are potentially exposed to methyltrichlorosilane in the US(1). Occupational exposure to methyltrichlorosilane may occur through inhalation and dermal contact with this compound at workplaces where methyltrichlorosilane is produced or used(SRC).

The substance can be absorbed into the body by inhalation and by ingestion.

... Chlorosilanes will be rapidly hydrolyzed upon contact with tissue fluids to release hydrochloric acid. /Chlorosilanes/

As with other chlorosilanes, acute exposures may be highly toxic and may cause death or permanent injury after very short exposures to small quantitites. Chronic exposures may be moderately toxic and involve irreversible and reversible changes. Skin contact may produce severe burns with pain and risk of secondary infections. Ingestion may produce oral, esophageal, and stomach burns, intensity will vary from mild to very severe, gastrointestinal damage is rare but may occur. (EPA, 1998)

Warning: In the presence of water, methyltrichlorosilane liberates hydrochloric acid, which is extremely corrosive. Caution is advised. Signs and Symptoms of Acute Methyltrichlorosilane Exposure: Signs and symptoms of acute ingestion of methyltrichlorosilane may include excessive salivation, intense thirst, difficulty in swallowing, chills, pain, and shock. Oral, esophageal, and stomach burns are common. Vomitus generally has a coffee-ground appearance. The potential for circulatory collapse is high following ingestion of methyltrichlorosilane. Acute inhalation exposure may result in hoarseness, laryngitis, a feeling of suffocation, dyspnea (shortness of breath), choking, respiratory tract irritation, chest pain, and pulmonary edema. Sneezing, bleeding of the nose and gums, and ulceration of the nasal and oral mucosa may also occur. Renal toxicity has been observed in animals. If the eyes have come in contact with methyltrichlorosilane, then irritation, pain, swelling, corneal erosion, and blindness may result. Dermatitis (red, inflamed skin), severe burns, pain, and shock generally follow dermal exposure. Emergency Life-Support Procedures: Acute exposure to methyltrichlorosilane may require decontamination and life support for the victims. Emergency personnel should wear protective clothing appropriate to the type and degree of contamination. Air-purifying or supplied-air respiratory equipment should also be worn, as necessary. Rescue vehicles should carry supplies such as plastic sheeting and disposable plastic bags to assist in preventing spread of contamination. Inhalation Exposure: 1. Move victims to fresh air. Emergency personnel should avoid self-exposure to methyltrichlorosilane. 2. Evaluate vital signs including pulse and respiratory rate, and note any trauma. If no pulse is detected, provide CPR. If not breathing, provide artificial respiration. If breathing is labored, administer oxygen or other respiratory support. 3. Obtain authorization and/or further instructions from the local hospital for administration of an antidote or performance of other invasive procedures. 4. RUSH to a health care facility. Dermal/Eye Exposure: 1. Remove victims from exposure. Emergency personnel should avoid self- exposure to methyltrichlorosilane. 2. Evaluate vital signs including pulse and respiratory rate, and note any trauma. If no pulse is detected, provide CPR. If not breathing, provide artificial respiration. If breathing is labored, administer oxygen or other respiratory support. 3. Remove contaminated clothing as soon as possible. 4. If eye exposure has occurred, eyes must be flushed with lukewarm water for at least 15 minutes. 5. Wash exposed skin areas THOROUGHLY with soap and water. 6. Obtain authorization and/or further instructions from the local hospital for administration of an antidote or performance of other invasive procedures. 7. RUSH to a health care facility. Ingestion Exposure: 1. Evaluate vital signs including pulse and respiratory rate, and note any trauma. If no pulse is detected, provide CPR. If not breathing, provide artificial respiration. If breathing is labored, administer oxygen or other respiratory support. 2. Rinse mouth with large amounts of water. Inform victims not to swallow this water. 3. DO NOT induce vomiting or attempt to neutralize! 4. Obtain authorization and/or further instructions from the local hospital for administration of an antidote or performance of other invasive procedures. 5. Activated charcoal is of no value. 6. Give the victims water or milk: children up to 1 year old, 125 mL (4 oz or 1/2 cup); children 1 to 12 years old, 200 mL (6 oz or 3/4 cup); adults, 250 mL (8 oz or 1 cup). Water or milk should be given only if victims are conscious and alert. 7. RUSH to a health care facility. (EPA, 1998)

Fresh air, rest. Half-upright position. Artificial respiration may be needed. Refer for medical attention.

Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention .

First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.

No specific antidote is available /for chlorosilanes/, but first aid treatment consists of copious irrigation with water, & subsequent treatment is as for chemical burns in general. /Chlorosilanes/|Basic treatment: Establish a patent airway (oropharyngeal or nasopharyngeal airway, if needed). Suction if necessary. Watch for signs of respiratory insufficiency and assist ventilations if necessary. Administer oxygen by nonrebreather mask at 10 to 15 L/min. Monitor for pulmonary edema and treat if necessary ... Anticipate seizures and treat if necessary ... Monitor for shock and treat if necessary ... For eye contamination, flush eyes immediately with water. Irrigate each eye continuously with 0.9% saline (NS) during transport ... Do not use emetics. For ingestion, rinse mouth and administer 5 mL/kg up to 200 ml of water for dilution if the patient can swallow, has a strong gag reflex, and does not drool. Administer activated charcoal ... Cover skin burns with sterile dressings after decontamination ... /Silane, Chlorosilane, and Related Compounds/|Advanced treatment: Consider orotracheal or nasotracheal intubation for airway control in the patient who is unconscious, has severe pulmonary edema, or is in severe respiratory distress. Early intubation at the first sign of upper airway obstruction may be necessary. Positive-pressure ventilation techniques with a bag-valve-mask device may be beneficial. Consider drug therapy for pulmonary edema ... Monitor cardiac rhythm and treat arrhythmias if necessary ... Start IV administration of D5W /SRP: "To keep open", minimal flow rate/. Use 0.9% saline (NS) or lactated Ringer's (LR) if signs of hypovolemia are present. For hypotension with signs of hypovolemia, administer fluid cautiously. Consider vasopressors if patient is hypotensive with a normal fluid volume. Watch for signs of fluid overload ... Treat seizures with diazepam or lorazepam ... Use proparacaine hydrochloride to assist eye irrigation ... /Silane, Chlorosilane, and related compounds/|FIRST AID: Inhalation--Fresh air, rest. Half-upright position. Artificial respiration may be needed. Refer for medical attention ... The symptoms of lung edema often do not become manifest until a few hours have passed and they are aggravated by physical effort. Rest and medical observation are therefore essential. Immediate administration of an appropriate ... /aerosol/, by a doctor or a person authorized by him/her, should be considered ... Skin--Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention; Eyes--First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor; Ingestion--Rinse mouth. Do NOT induce vomiting. Give nothing to drink. Refer for medical attention.

/SIGNS AND SYMPTOMS/ Causes severe eye and skin burns. May be harmful if absorbed through skin or inhaled. Irritating to skin, eyes, and respiratory system ...|/SIGNS AND SYMPTOMS/ If inhaled will cause difficult breathing. ... Ingestion causes severe burns of mouth and stomach.|/SIGNS AND SYMPTOMS/ Corrosive. Causes severe eye and skin burns. May be harmful if absorbed through skin or inhaled. Irritating to skin, eyes, and respiratory system. Symptoms of overexposure include coughing, wheezing, laryngitis, headache, nausea, vomiting, spasm, pulmonary inflammation, and edema.|/SIGNS AND SYMPTOMS/ ACUTE ... SYMPTOMS: Inhalation--Burning sensation. Cough. Sore throat. Labored breathing. Shortness of breath. Symptoms may be delayed ... Skin--Redness. Blisters. Pain. Skin burns; Eyes--Redness. Pain. Severe deep burns; Ingestion--Burning sensation. Abdominal pain. Shock or collapse.|/SIGNS AND SYMPTOMS/ ... /Methyltrichlorosilane/ is corrosive to the eyes, the skin and the respiratory tract. Corrosive on ingestion. Inhalation of this substance may cause lung edema ... The symptoms of lung edema often do not become manifest until a few hours have passed and they are aggravated by physical effort ... Exposure may result in death ...

methyltrichlorosilane

The substance can be absorbed into the body by inhalation and by ingestion.

Burning sensation. Cough. Sore throat. Laboured breathing. Shortness of breath. Symptoms may be delayed.

Redness. Blisters. Pain. Skin burns.

Redness. Pain. Severe deep burns.

GRADES OF PURITY: 98+%.

All other basic inorganic chemical manufacturing|Silane, trichloromethyl-: ACTIVE

Fire Hazards -> Corrosives, Flammable - 3rd degree, Reactive - 2nd degree