Product Identification

Product Name

Thiophosgene

Synonyms

Carbon chlorosulfide
Carbonothioic dichloride
Thiocarbonyl chloride

CAS

463-71-8

Formula

CCl2S

Molecular Weight

114.97

EINECS

207-341-6

RTECS

XN2450000

RTECS Class

Primary Irritant

Beilstein/Gmelin

1633495

Beilstein Reference

4-03-00-00281

EC Index Number

607-201-00-8

EC Class

Toxic; Harmful; Irritant

Physical and Chemical Properties

Appearance

A reddish liquid.

Solubility in water

Slightly soluble

Boiling Point

73

Vapor Pressure

127 (25 C)

Density

1.5085 g/cm3 (15 C)

Partition Coefficient

2.07

Heat Of Vaporization

30.1 kJ/mol

Heat Of Combustion

-8000 kJ/mol

Usage

Organic synthesis.

Vapor Density

4

Refractive Index

1.54424

First Aid Measures

Ingestion

Never give anything by mouth to an unconscious person. Get medical aid immediately. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.

Inhalation

Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. DO NOT use mouth-to-mouth respiration.

Skin

Get medical aid immediately. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse. Destroy contaminated shoes.

Eyes

Get medical aid. Do NOT allow victim to rub or keep eyes closed. Extensive irrigation is required (at least 30 minutes).

Handling and Storage

Storage

Keep away from heat, sparks, and flame. Keep away from sources of ignition. Store in a cool, dry, well-ventilated area away from incompatible substances. Refrigerator (approx 4 C). Do not store in metal containers. Keep containers tightly closed. Store protected from moisture. Store under an inert atmosphere.

Handling

Wash thoroughly after handling. Ground and bond containers when transferring material. Do not get in eyes, on skin, or on clothing. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Keep container tightly closed. Do not ingest or inhale. Handle under an inert atmosphere. Store protected from air. Wash clothing before reuse. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames.

Hazards Identification

Ingestion

Causes gastrointestinal irritation with nausea, vomiting and diarrhea. May be harmful if swallowed.

Inhalation

Causes severe respiratory tract irritation with possible burns.

Skin

Causes severe skin irritation and possible burns.

Eyes

Causes severe eye irritation and possible burns.

Hazards

Vapors may accumulate in confined areas (basement, tanks, hopper/tank cars, etc.). Substance will react with water (some violently), releasing corrosive and/or toxic gases. Reaction with water may generate much heat which will increase the concentration of fumes in the air. Contact with metals may evolve flammable hydrogen gas.

UN (DOT)

2474

Exposure Controls/Personal Protection

Personal Protection

Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to minimize contact with skin.

Respirators

Wear a NIOSH/MSHA or European Standard EN 149 approved full-facepiece airline respirator in the positive pressure mode with emergency escape provisions.

Fire Fighting Measures

Flash Point

-2

Fire Fighting

Extinguish fire using agent suitable for type of surrounding fire. (Material itself does not burn or burns with difficulty.) Use foam, dry chemical, or carbon dioxide. Cool all affected containers with flooding quantities of water. 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.

Fire Potential

Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.

Accidental Release Measures

Small spills/leaks

Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Avoid runoff into storm sewers and ditches which lead to waterways. Remove all sources of ignition. Use a spark-proof tool. Provide ventilation. A vapor suppressing foam may be used to reduce vapors.

Stability and Reactivity

Incompatibilities

Acids - bases - alcohols - amines - metals - moist air or water.

Stability

Stable under normal temperatures and pressures.

Decomposition

Hydrogen chloride, phosgene, oxides of sulfur, irritating and toxic fumes and gases.

Combustion Products

Toxic phosgene, hydrogen chloride, and sulfur dioxide may be generated in a fire.

Transport Information

UN Number

2474

Hazard Class

6.1

Packing Group

II