Nitrosyl chloride

65.4591

65.46

220-273-1

NHE5I1E5H6

1580

1069

DTXSID5051945

YELLOW GAS OR YELLOW-RED LIQUID OR CRYSTALS

29.43000

0.90660

Nitrosyl chloride appears as a yellow to yellowish red gas. Liquefies at -5.5°C. Very toxic by inhalation. Noncombustible, but accelerates burning of combustible material. Decomposed by water to form corrosive hydrochloric acid. Vapors heavier than air. Prolonged exposure to fire or heat can cause containers to rupture violently and rocket .

1.417

-64.5 °C

-5.5 °C

1.432

decomposes in H2O; soluble fuming H2SO4 [HAW93]

2,409 mm Hg at 25 deg C, calculated from experimentally derived coefficients

Relative vapour density (air = 1): 2.3

COLD SEALED TUBE CONTAINING NITROSYL CHLORIDE, PLATINUM WIRE & TRACES OF ACETONE EXPLODED VIOLENTLY ON BEING ALLOWED TO WARM UP.

CHOKING ODOR

1 MG/CU M IS EQUIV TO 0.37 PPM; 1 PPM IS EQUIV TO 2.7 MG/CU M @ 25 °C, 760 MM HG|DECOMP BY H2O; ORANGE COLOR OF AQUA REGIA IS PRODUCED BY NITROSYL CHLORIDE|VAP: 76 MM HG AT -50 °C

Dissolves into and reacts with moisture in the air or with water to form hydrochloric acid and toxic red oxides of nitrogen.

Acyl Halides, Sulfonyl Halides, and Chloroformates

Strong Oxidizing Agent

NITROSYL CHLORIDE is an oxidizing agent. Dissociates into nitric oxide and chlorine on heating. Gives an explosive reaction when sealed in a tube with a residue of acetone and in the presence of platinum catalyst [Chem. Eng. News 35(43):60. 1967]. May react vigorously or explosively if mixed with diisopropyl ether or other ethers in the presence of trace amounts of metal salts [J. Haz. Mat., 1981, 4, 291].

Not flammable (USCG, 1999)

The gas is heavier than air and may accumulate in lowered spaces causing a deficiency of oxygen.

VERY CORROSIVE|ALUMINUM IS ATTACKED BY NITROSYL CHLORIDE WHEN COLD.

164 BTU/LB= 91.0 CAL/G= 3.81X10+5 J/KG

167 °C; 92.4 ATM

2.3

1069

R36/37/38:Irritating to eyes, respiratory system and skin .

S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice . S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .

C,T

Separated from incompatible materials. See Chemical Dangers. Cool. Keep in a well-ventilated room.

Toxic/Corrosive

P220, P244, P260, P264, P271, P280, P284, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P310, P320, P321, P363, P370+P376, P403, P403+P233, P405, P410+P403, P501

H270

SRP: At the time of review, criteria for land treatment or burial (sanitary landfill) disposal practices are subject to significant revision. Prior to implementing land disposal of waste residue (including waste sludge), consult with environmental regulatory agencies for guidance on acceptable disposal practices.

N-NITROSO CMPD ARE PRODUCED WHEN...REACTION OF THE PARENT AMINE WITH NITROSYL CHLORIDE (NOCL) & NITROSYL TETRAFLUOROBORATE PRODUCE THE NITROSAMINE.|THEY WILL REACT WITH WATER OR STEAM TO PRODUCE HEAT AND CORROSIVE FUMES. /NITROGEN OXIDES/; SEE CHLORIDES. ON CONTACT WITH ACIDS OR ACID FUMES THEY EVOLVE HIGHLY TOXIC CHLORIDE FUMES. /HYDROGEN CHLORIDE/|...THEY CAN REACT VIGOROUSLY WITH REDUCING MATERIALS. /NITROGEN OXIDES/

Special Hazards of Combustion Products: Very toxic gases are generated when heated (USCG, 1999)|Not combustible. Gives off irritating or toxic fumes (or gases) in a fire.|Corrosives, Reactive - 1st degree

|Danger|H270 (100%): May cause or intensify fire; oxidizer [Danger Oxidizing gases]|P220, P244, P260, P264, P271, P280, P284, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P310, P320, P321, P363, P370+P376, P403, P403+P233, P405, P410+P403, and P501|Aggregated GHS information provided by 111 companies from 2 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Excerpt from ERG Guide 125 [Gases - Corrosive]: As an immediate precautionary measure, isolate spill or leak area for at least 100 meters (330 feet) in all directions. SPILL: See ERG Table 1 - Initial Isolation and Protective Action Distances on the UN/NA 1069 datasheet. FIRE: If tank, rail car or tank truck is involved in a fire, ISOLATE for 1600 meters (1 mile) in all directions; also, consider initial evacuation for 1600 meters (1 mile) in all directions. (ERG, 2016)

Excerpt from ERG Guide 125 [Gases - Corrosive]: Fully encapsulating, vapor-protective clothing should be worn for spills and leaks with no fire. Do not touch or walk through spilled material. Stop leak if you can do it without risk. If possible, turn leaking containers so that gas escapes rather than liquid. Prevent entry into waterways, sewers, basements or confined areas. Do not direct water at spill or source of leak. Use water spray to reduce vapors or divert vapor cloud drift. Avoid allowing water runoff to contact spilled material. Isolate area until gas has dispersed. (ERG, 2016)

Self-contained breathing apparatus (approved mask may be used for short exposures only); rubberized clothing; gloves; shoes; chemical goggles. (USCG, 1999)|SELF-CONTAINED BREATHING APPARATUS (APPROVED MASK MAY BE USED FOR SHORT EXPOSURES ONLY); RUBBERIZED CLOTHING; GLOVES; SHOES; CHEMICAL GOGGLES.|Wear rubber gloves, face shield and coveralls. Use a full-body shield to prepare for violent reaction possibility.

PRE-ADDITION OF NITROGEN OXIDE (OR NITROSYL CHLORIDE AS ITS PRECURSOR) TO STOICHIOMETRIC HYDROGEN-OXYGEN MIXT @ 240 MBAR/360 °C WILL CAUSE IMMEDIATE IGNITION UNDER VARIETY OF CIRCUMSTANCES.

NON-EXPLOSIVE...|COLD SEALED TUBE CONTAINING NITROSYL CHLORIDE, PLATINUM WIRE & TRACES OF ACETONE EXPLODED VIOLENTLY ON BEING ALLOWED TO WARM UP.

If material involved in fire: Extinguish fire using agent suitable for type of surrounding fire. (Material itself does not burn or burns with difficulty.) Cool all affected containers with flooding quantities of water. Apply water from as far a distance as possible. Use water spray to knock-down vapors.

NEUTRALIZING AGENT FOR ACIDS & CAUSTICS /SMALL SPILLS/: FLUSH WITH WATER. RESIDUAL ACID MAY BE NEUTRALIZED WITH SODA ASH.

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.|If material not involved in fire: Keep material out of water sources and sewers. Attempt to stop leak if without undue personnel hazard. Use water spray to knock-down vapors. Neutralize spilled material with crushed limestone, soda ash, or lime. Do not use water on material itself.|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 which may have contacted the body with copious amounts of water or soap and water.

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.|/GUIDE 125: GASES - CORROSIVE/ Fire or Explosion: Some may burn but none ignite readily. Vapors from liquefied gas are initially heavier than air and spread along ground. Some of these materials may react violently with water. Cylinders exposed to fire may vent and release toxic and/or corrosive gas through pressure relief devices. Containers may explode when heated. Ruptured cylinders may rocket.|/GUIDE 125: GASES - CORROSIVE/ Health: TOXIC; may be fatal if inhaled, ingested or absorbed through skin. Vapors are extremely irritating and corrosive. Contact with gas or liquefied gas may cause burns, severe injury and/or frostbite. Fire will produce irritating, corrosive and/or toxic gases. Runoff from fire control may cause pollution.|/GUIDE 125: GASES - CORROSIVE/ Public Safety: CALL Emergency Response Telephone Number on Shipping Paper first. If Shipping Paper not available or no answer, refer to appropriate telephone number listed on the inside back cover. As an immediate precautionary measure, isolate spill or leak area for at least 100 meters (330 feet) in all directions. Keep unauthorized personnel away. Stay upwind. Many gases are heavier than air and will spread along ground and collect in low or confined areas (sewers, basements, tanks). Keep out of low areas. Ventilate closed spaces before entering.|For more DOT Emergency Guidelines (Complete) data for NITROSYL CHLORIDE (9 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.

INTENSELY IRRITATING TO EYES, SKIN, MUCOUS MEMBRANES.

Evacuate danger area! Consult an expert! Personal protection: gas-tight chemical protection suit including self-contained breathing apparatus. Ventilation. NEVER direct water jet on liquid. Remove gas with fine water spray. Do NOT absorb in saw-dust or other combustible absorbents.

Separated from incompatible materials. See Chemical Dangers. Cool. Keep in a well-ventilated room.

A harmful concentration of this gas in the air will be reached very quickly on loss of containment.

The substance is corrosive to the eyes, skin and respiratory tract. Inhalation of this gas may cause lung oedema.

NO contact with flammables.

AVOID ALL CONTACT! IN ALL CASES CONSULT A DOCTOR!

Use ventilation, local exhaust or breathing protection.

Protective gloves. Protective clothing.

Wear eye protection in combination with breathing protection.

Atmospheric fate: Nitrosyl chloride formation may be significant in coastal urban areas because it photolyze rapidly to Cl atoms, and hydrolyzes to HONO, a major OH source; both Cl and OH initiate atmospheric photochemical oxidations.

NITROSYL CHLORIDE MAY BE ENCOUNTERED WHEREVER AQUA REGIA IS MADE OR USED.

Gas is highly toxic. Inhalation causes severe irritation of respiratory tract and damage to mucous membranes. Delayed effects, which include severe pulmonary edema, may not be apparent for several hours. (USCG, 1999)

INHALATION: remove victim to fresh air; call a doctor; enforce complete rest until doctor arrives; observe at least 24 hours for delayed effects. SKIN OR EYES: flush with water for at least 15 min.; consult physician. (USCG, 1999)

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.

Nitrosyl chloride is a very corrosive reddish yellow gas, which is said to be intensely irritating to the eyes and skin, and to be severely injurious to the lungs.|INTENSELY IRRITATING TO EYES, SKIN, MUCOUS MEMBRANES. INHALATION MAY CAUSE PULMONARY EDEMA, HEMORRHAGE.

nitrosyl chloride

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

Redness. Pain. Skin burns.

Redness. Pain. Burns.

GRADES: PURE; 93% MIN

Nitrosyl chloride ((NO)Cl): ACTIVE

Fire Hazards -> Corrosives, Reactive - 1st degree