Chloromethyl chlorosulfate

  • Chlorosulfuric acid, chloromethyl ester
Formula
CH2Cl2O3S
Structure
Description
Colorless to light yellow liquid.

Registry Numbers and Inventories.
CAS
49715-04-0
EC (EINECS/ELINCS)
256-442-1
UN (DOT)
2927
Beilstein/Gmelin
1703401
Beilstein Reference
3-01-00-02593

Properties.
Formula
CH2Cl2O3S
Formula mass
164.99
Boiling point, °C
153 - 155
Density
1.63 g/cm3

Hazards and Protection.
Storage
Store in a tightly closed container. Keep under an argon blanket. Refrigerator (approx 4 C).
Handling
Do not breathe dust, vapor, mist, or gas. Do not get in eyes, on skin, or on clothing. Container should be opened by a technically qualified person. Use only in a chemical fume hood.
Protection
Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
Respirators
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Small spills/leaks
Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container.
Stability
No data.
Incompatibilities
Strong oxidizing agents, alkali metals.
Decomposition
Hydrogen chloride, carbon monoxide, oxides of sulfur, carbon dioxide.

Fire.
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. To extinguish fire use water spray, dry chemical, carbon dioxide, or chemical foam.
Fire potential
Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.
Hazards
Contact with metals may evolve flammable hydrogen gas.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.

Health.
Exposure effects
   Ingestion
Causes gastrointestinal tract burns. The toxicological properties of this substance have not been fully investigated.
   Inhalation
May be fatal if inhaled. Causes chemical burns to the respiratory tract.
   Skin
Causes skin burns.
   Eyes
Causes eye burns.

First aid
 
   Ingestion
Do NOT induce vomiting. If victim is conscious and alert, give 2-4 cupfuls of milk or water. Get medical aid immediately.
   Inhalation
Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
   Skin
Get medical aid immediately. Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
   Eyes
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Transport.
UN number
2927
Response guide
Hazard class
6.1
Packing Group
I; II