Sodium methoxide

54.02370

54.00820

204-699-5

IG663U5EMC

0771

1431

DTXSID8027030

Amorphous, free flowing powder|Tetragonal crystals

2905199090

23.06000

0.04670

Sodium methylate is a white amorphous powder. It reacts with water to form sodium hydroxide, a corrosive material, and methyl alcohol, a flammable liquid. The heat from this reaction may be sufficient to ignite surrounding combustible material or the sodium methylate itself if the water is present in only small amounts. It is used to process edible fats and oils, and to make other chemicals.

0.45 g/cm³

127 °C (decomp)

80 °C (approx) @ Press: 0.4 Torr

11ºC

1.37

Solubility in water: reaction

Flammables area

50 mm Hg ( 20 °C)

1.1 (vs air)

vol% in air: 7.3 36

Decomposes in air above 127 °C|Reacts violently with water forming flammable methanol and corrosive sodium hydroxide|White powder /Solvated form/

Ignites in moist air [Wischmeyer 1966]. with moist air, autoignition is possible; strong reducing agent; reacts with light metals forming H2 gas, with fire and explosion hazards; reacts violently with water to form methanol and sodium hydroxide, and with acids, causing hazard of methanol ignition [Handling Chemicals Safely 1980 p. 850].

Bases, Strong

Strong Reducing Agent

SODIUM METHYLATE is a strong base. Reacts with light metals forming H2 gas, with fire and explosion hazards. Too rapid addition of sodium methylate to a mixture of chloroform and methanol initiated an uncontrolled exothermic reaction between the chloroform and the methylate that caused a violent explosion [MCA Case History 693 1961]. Sodium methoxide is incompatible with 4-chloronitrobenzene and fluorinated cyclopropenyl methyl ethers, such as perfluoromethoxycyclopropene. The reactions are vigorous and may initiate ignition [Bretherick, 5th Ed., 1995].

240 °C|>50 °C

Dust explosion possible if in powder or granular form, mixed with air.

II

4.2

UN 1431

1

R11; R14; R23/24/25; R36/38; R39/23/24/25

S16-S36/37-S45-S7

PC3570000

F

Fireproof. Separated from strong oxidants, acids, metals and food and feedstuffs. Dry. Cool. Well closed. Store in an area having corrosion resistant concrete floor. Store in an area without drain or sewer access.

Stability Highly flammable. Reacts violently with water. Keep container dry. Incompatible with water, acids, chlorinated solvents.

P235 + P410-P280-P305 + P351 + P338-P310

H251-H302-H314

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.

/With water/ produces a caustic soda soln and soln of methyl alcohol. The reaction is not violent.|Sodium methylate, as it was being added to a mixture of perchloryl fluoride and methyl alcohol, underwent an explosive reaction with perchloryl fluoride in the vapor phase above the liquid. When the sodium methylate and methyl alcohol were mixed before the addition of perchloryl fluoride, no explosion occurred.|For preparation of methyl orthoformate, solid sodium methoxide, methanol and chloroform were mixed together. The mixture boiled violently and then exploded ... The explosion was caused by the addition of the solid sodium methoxide as one portion.|Addition of the chloro cmpd /4-chloronitrobenzene/ to a soln of sodium methoxide in methanol caused an unusually exothermic reaction ot occur. The lid of the 450 L vessel was blown off, and a fire and explosion followed. No cause for the unusual vigor of the reaction was found.|For more Hazardous Reactivities and Incompatibilities (Complete) data for SODIUM METHOXIDE (7 total), please visit the HSDB record page.

European Chemicals Bureau; IUCLID Dataset, Sodium methanolate (124-41-4) (2000 CD-ROM edition). Information on usage pattern, toxicology, and environmental effects supplied by industry to the European Union. Available from the database query page: http://ecb.jrc.it/esis/esis.php as of November 6, 2006.

UN 1431

P235 + P410; P280; P305 + P351 + P338; P310

Behavior in Fire: Contact with water or foam applied to adjacent fires will produce flammable methanol. (USCG, 1999)|Highly flammable. Many reactions may cause fire or explosion. Risk of fire and explosion on contact with water, moist air or metals.|Flammable - 4th degree, Reactive - 2nd degree

|Danger|H228 (44.1%): Flammable solid [Danger Flammable solids]|P210, P234, P235+P410, P240, P241, P260, P264, P270, P280, P301+P312, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P310, P321, P330, P363, P370+P378, P390, P404, P405, P407, P413, P420, and P501|Aggregated GHS information provided by 798 companies from 26 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.|H251: Self-heating; may catch fire [Danger Self-heating substances and mixtures]|P235+P410, P260, P264, P280, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P310, P321, P363, P405, P407, P413, P420, and P501|H228: Flammable solid [Danger Flammable solids]|P210, P235+P410, P240, P241, P260, P261, P264, P270, P271, P280, P301+P312, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P310, P312, P321, P330, P363, P370+P378, P403+P233, P405, P407, P413, P420, and P501

Excerpt from ERG Guide 138 [Substances - Water-Reactive (Emitting Flammable Gases)]: 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: Increase, in the downwind direction, as necessary, the isolation distance shown above. 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 138 [Substances - Water-Reactive (Emitting Flammable Gases)]: ELIMINATE all ignition sources (no smoking, flares, sparks or flames in immediate area). Do not touch or walk through spilled material. Stop leak if you can do it without risk. Use water spray to reduce vapors or divert vapor cloud drift. Avoid allowing water runoff to contact spilled material. DO NOT GET WATER on spilled substance or inside containers. SMALL SPILL: Cover with DRY earth, DRY sand or other non-combustible material followed with plastic sheet to minimize spreading or contact with rain. Dike for later disposal; do not apply water unless directed to do so. POWDER SPILL: Cover powder spill with plastic sheet or tarp to minimize spreading and keep powder dry. DO NOT CLEAN-UP OR DISPOSE OF, EXCEPT UNDER SUPERVISION OF A SPECIALIST. (ERG, 2016)

Self-contained breathing apparatus; rubber gloves and apron; goggles or face shield. (USCG, 1999)

... (Solid) flammable when exposed to heat or flame. (solution) flammable, moderate fire risk.|/Sodium methoxide/ may ignite in moist air ...

Finely dispersed particles form explosive mixtures in air. ...Dust explosion possible if in powder or granular form, mixed with air.|Explosive limits , vol% in air: 7.3 - 36

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. /Sodium methylate solutions/|If material on fire or involved in fire: Do not use water. Use dry chemical or carbon dioxide.

Spillage disposal: Evacuate danger area! Consult an expert! Do NOT wash away into sewer. Sweep spilled substance into clean and dry containers. Do NOT absorb in saw-dust or other combustible absorbents. Personal protection: chemical protection suit including self-contained breathing apparatus.

If material not on fire and not involved in fire: Keep sparks, flames, and other sources of ignition away. Keep material out of water sources and sewers. build dikes to contain flow as necessary. Attempt to stop leak if without undue personnel hazard. Use water spray to knock-down vapors. Do not use water on material itself. /Sodium methylate solutions/|If material not on fire and not involved in fire: Do not use water. Keep sparks flames, and other sources of ignition away. Keep material out of water sources and sewers. Keep material dry.|Personnel protection: Avoid breathing vapors. Keep upwind. Avoid bodily contact with the material. ... Do not handle broken packages unless wearing appropriate personal protective equipment. Wash away any material with may have contacted the body with copious amounts of water or soap and water. Wear positive pressure self-contained breathing apparatus when fighting fires involving this material. If contact with the material anticipated, wear appropriate chemical protective clothing. /Sodium methylate solutions/|Personnel protection: Avoid breathing dusts, and fumes from burning material. Avoid bodily contact with the material. ... Do not handle broken packages unless wearing appropriate personal protective equipment. Wash away any material which may have contacted the body with copious amounts of water or soap and water. If contact with the material anticipated, wear appropriate chemical protective clothing.|For more Preventive Measures (Complete) data for SODIUM METHOXIDE (7 total), please visit the HSDB record page.

/GUIDE 132: FLAMMABLE LIQUIDS - CORROSIVE/ Fire or Explosion: Flammable/combustible materials. May be ignited by heat, sparks or flames. Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers. Runoff to sewer may create fire or explosion hazard. Containers may explode when heated. Many liquids are lighter than water. /Sodium methylate, solution in alcohol/|/GUIDE 132: FLAMMABLE LIQUIDS - CORROSIVE/ Health: May cause toxic effects if inhaled or ingested/swallowed. Contact with substance may cause severe burns to skin and eyes. Fire will produce irritating, corrosive and/or toxic gases. Vapors may cause dizziness or suffocation. Runoff from fire control or dilution water may cause pollution. /Sodium methylate, solution in alcohol/|/GUIDE 132: FLAMMABLE LIQUIDS - CORROSIVE/ Public Safety: CALL Emergency Response Telephone Number ... . As an immediate precautionary measure, isolate spill or leak area for at least 50 meters (150 feet) in all directions. Keep unauthorized personnel away. Stay upwind. Keep out of low areas. Ventilate closed spaces before entering. /Sodium methylate, solution in alcohol/|/GUIDE 132: FLAMMABLE LIQUIDS - CORROSIVE/ Protective Clothing: Wear positive pressure self-contained breathing apparatus (SCBA). Wear chemical protective clothing that is specifically recommended by the manufacturer. It may provide little or no thermal protection. Structural firefighters' protective clothing is recommended for fire situations ONLY; it is not effective in spill situations where direct contact with the substance is possible. /Sodium methylate, solution in alcohol/|For more DOT Emergency Guidelines (Complete) data for SODIUM METHOXIDE (16 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.

Inhalation of dust causes severe irritation of nose and throat. Contact with eyes or skin causes severe irritation. ...

Remove all ignition sources. Evacuate danger area! Consult an expert! Personal protection: complete protective clothing including self-contained breathing apparatus. Cover the spilled material with dry sand. Sweep spilled substance into covered dry plastic containers. Carefully collect remainder. Then store and dispose of according to local regulations. Do NOT wash away into sewer.

Fireproof. Separated from strong oxidants, acids, metals and food and feedstuffs. Dry. Cool. Well closed. Store in an area having corrosion resistant concrete floor. Store in an area without drain or sewer access.

A harmful concentration of airborne particles can be reached quickly when dispersed.

The substance is corrosive to the eyes, skin and respiratory tract. Corrosive on ingestion. Inhalation may cause lung oedema, but only after initial corrosive effects on eyes and/or airways have become manifest.

NO open flames, NO sparks and NO smoking. NO contact with water.

AVOID ALL CONTACT! IN ALL CASES CONSULT A DOCTOR!

Use local exhaust and breathing protection.

Protective gloves. Protective clothing.

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

Persons in charge of vessels or facilities are required to notify the National Response Center (NRC) immediately, when there is a release of this designated hazardous substance, in an amount equal to or greater than its reportable quantity of 1000 lb or 454 kg. The toll free number of the NRC is (800) 424-8802. The rule for determining when notification is required is stated in 40 CFR 302.4 (section IV. D.3.b).

LD50 Rat dermal >2000 mg/kg bw|LD50 Rat oral 800 mg/kg bw|LD50 Mouse ip 40 mg/kg bw

Liquids that dissolve other substances (solutes), generally solids, without any change in chemical composition, as, water containing sugar. (Grant and Hackh's Chemical Dictionary, 5th ed) (See all compounds classified as Solvents.)

In 97.5% sodium methylate powder: 0.5% sodium hydroxide; 0.3% sodium formate; 0.4% sodium carbonate; 0.5% free methanol.

Inhalation of dust causes severe irritation of nose and throat. Contact with eyes or skin causes severe irritation and burns. Ingestion causes irritation of mouth and stomach. (USCG, 1999)

Get medical attention at once following all exposures to this compound. INHALATION: remove victim from contamination and keep him quiet and warm. Rest is essential. Hot tea or coffee may be given as a stimulant if patient is conscious. If breathing has apparently ceased, give artificial respiration. If available, oxygen should be administered by experienced personnel. EYES: wash well with water, then with 3% boric acid solution and additional water washes. SKIN: wash well with water, then with dilute vinegar. INGESTION: if victim is conscious, induce vomiting by administering a glassful of warm water containing a teaspoon full of salt; repeat until vomit is clear, then give two teaspoons of baking soda every 15 min.; keep victim's eyes covered until all visual and retinal changes have disappeared; alert physician to possibility of methyl alcohol poisoning. (USCG, 1999)

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

First rinse with plenty of water for at least 15 minutes, then remove contaminated clothes and rinse again. Refer immediately for medical attention.

Rinse with plenty of water (remove contact lenses if easily possible). Refer immediately 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 inhalation therapy by a doctor or a person authorized by him/her, should be considered.

/SIGNS AND SYMPTOMS/ Solution contains /the hydrolysis product/ methyl alcohol, and is toxic and corrosive to tissue.|/SIGNS AND SYMPTOMS/ Ingestion causes irritation of mouth and stomach.|/SIGNS AND SYMPTOMS/ Corrosive. The substance is corrosive to the eyes, the skin and the respiratory tract. Inhalation of dusts may cause lung edema. The effects may be delayed.

Alcohol, Methyl

Serious local effects by all routes of exposure.

Sore throat. Cough. Burning sensation. Shortness of breath. Laboured breathing.

Redness. Pain. Serious skin burns.

Redness. Pain. Blurred vision. Severe deep burns.

97.5% sodium methylate; 30% solution in methanol.|Technical; and 98% purity grade.

All other basic organic chemical manufacturing|Methanol, sodium salt (1:1): ACTIVE

Fire Hazards -> Flammable - 4th degree, Reactive - 2nd degree