I abc blog

Acetyl Chloride [CH3COCl = 78.50]
This product is colorless liquid; a pungent odor; be able to smoke, flammable; right has a strong irritating the skin and mucous membranes; in contact with water
Or ethanol-induced severe decomposition. In chloroform, ethyl ether, benzene, petroleum ether, or glacial acetic acid dissolved.
1. Physico-chemical constants of the material:
GB No. 32119
CAS No. 75-36-5
Chinese name of the acetyl chloride
English name of the acetyl chloride; ethanoyl chloride
Alias chloroacetyl; chlorine (of) acetyl
Formula C2H3ClO; CH3CClO colorless fuming liquid, there is a strong irritating odor
Molecular Weight 78.50 vapor pressure 12.1kPa / 0 ℃ Flash point: 4 ℃
Melting point -112 ℃ Boiling point: 51 ℃ Solubility soluble in acetone, ether, acetic acid
Density, relative density (water = 1) 1.11; the relative density (Air = 1) 2.70 stability stability
Risk Marker 7 (flammable liquids), 20 (corrosive substances) mainly used for organic compounds, the manufacture of dyes and drugs
2. Impact on the environment:
A health hazard
Pathways: inhaled, ingested, percutaneous absorption.
Health hazards: The product of the upper respiratory tract irritant, inhalation caused by coughing, chest pain. Mouth and digestive tract burns caused by oral administration.
Two, toxicology information and environmental behavior
Acute toxicity: LC50910mg / kg (rat oral)
Irritation: 20mg, severe stimulation. Rabbits open percutaneous stimulation test: 500mg, mildly stimulating.
Hazardous characteristics: flammable, its vapors can form explosive mixtures with air. The event of fire, high-heat combustion caused the explosion. Minutes in air heated to explain a highly toxic phosgene and hydrogen chloride gas. In contact with water, water vapor or ethanol or even violent reaction to an explosion. Its vapor is heavier than air and can spread to the lower at a far place, met the fire will burn the back.
Combustion (decomposition) products: carbon monoxide, carbon dioxide, hydrogen chloride, phosgene.
3. On-site emergency monitoring methods:
4. Laboratory monitoring methods:
In the NN-dimethylformamide conductance using EDTA titration determination of halides and acyl halides [published Japanese] / Yoshimura C.; Hasegawa T. / / Japan Chemical Society .- 1986, (6) .- 775 ~ 779 “Analysis of Chemical Abstracts” 1988.1.
5. Environmental standards:
6. Emergency treatment and disposal methods:
A leakage contingency
Rapid leak contaminated areas evacuated personnel to a safe area and isolation and strict restrictions on access. Cut off the fire source. Recommended emergency personnel wearing positive pressure self-contained breathing apparatus, wearing fire protective clothing. Do not direct contact with leakage. Cut off the source of as much as possible leakage, prevent access to sewers, flood discharge trench so restrictive space. A small leak: sand, dry lime or soda ash mixture. Can also use non-flammable dispersant made of latex, wash, lotion diluted into the wastewater system. A large number of leak: to build a causeway or trenching asylum; foam coverage, lower vapor disasters. Explosion-proof pump transferred to tankers or exclusive collector, recycling or shipped to the disposal of waste disposal sites.
Second, protective measures
Respiratory protection: its vapor may come into contact, must wear filter respirators (full cover), or self-contained breathing apparatus. Emergency rescue or evacuation, it is recommended to wear oxygen breathing apparatus.
Eye protection: Respiratory protection, protection has been made.
Physical protection: wear protective clothing tape.
Hand protection: wear rubber gloves.
Other: work site prohibit smoking, eating and drinking. Work complete, take a shower. To maintain good hygiene practices.
3, first-aid measures
Contact with the skin: immediately stripped of contaminated clothing, use soap and water thoroughly washed skin. Medical treatment.
Eye contact: immediately filed eyelid, with large flows of water or saline thoroughly washed at least 15 minutes. Medical treatment.
Inhalation: rapidly from the scene to fresh air. To maintain airway patency. If breathing is difficult, give oxygen. If breathing stops, artificial respiration immediately. Medical treatment.
Fresh into: oral intake of water were found to blues or egg white. Medical treatment.
Fire fighting methods: carbon dioxide, dry powder, 1211 fire extinguishing agent, sand. Prohibition of water or foam fire extinguishing.

Acetyl Chloride [CH3COCl = 78.50]
This product is colorless liquid; a pungent odor; be able to smoke, flammable; right has a strong irritating the skin and mucous membranes; in contact with water
Or ethanol-induced severe decomposition. In chloroform, ethyl ether, benzene, petroleum ether, or glacial acetic acid dissolved.
1. Physico-chemical constants of the material:
GB No. 32119
CAS No. 75-36-5
Chinese name of the acetyl chloride
English name of the acetyl chloride; ethanoyl chloride
Alias chloroacetyl; chlorine (of) acetyl
Formula C2H3ClO; CH3CClO colorless fuming liquid, there is a strong irritating odor
Molecular Weight 78.50 vapor pressure 12.1kPa / 0 ℃ Flash point: 4 ℃
Melting point -112 ℃ Boiling point: 51 ℃ Solubility soluble in acetone, ether, acetic acid
Density, relative density (water = 1) 1.11; the relative density (Air = 1) 2.70 stability stability
Risk Marker 7 (flammable liquids), 20 (corrosive substances) mainly used for organic compounds, the manufacture of dyes and drugs
2. Impact on the environment:
A health hazard
Pathways: inhaled, ingested, percutaneous absorption.
Health hazards: The product of the upper respiratory tract irritant, inhalation caused by coughing, chest pain. Mouth and digestive tract burns caused by oral administration.
Two, toxicology information and environmental behavior
Acute toxicity: LC50910mg / kg (rat oral)
Irritation: 20mg, severe stimulation. Rabbits open percutaneous stimulation test: 500mg, mildly stimulating.
Hazardous characteristics: flammable, its vapors can form explosive mixtures with air. The event of fire, high-heat combustion caused the explosion. Minutes in air heated to explain a highly toxic phosgene and hydrogen chloride gas. In contact with water, water vapor or ethanol or even violent reaction to an explosion. Its vapor is heavier than air and can spread to the lower at a far place, met the fire will burn the back.
Combustion (decomposition) products: carbon monoxide, carbon dioxide, hydrogen chloride, phosgene.
3. On-site emergency monitoring methods:
4. Laboratory monitoring methods:
In the NN-dimethylformamide conductance using EDTA titration determination of halides and acyl halides [published Japanese] / Yoshimura C.; Hasegawa T. / / Japan Chemical Society .- 1986, (6) .- 775 ~ 779 “Analysis of Chemical Abstracts” 1988.1.
5. Environmental standards:
6. Emergency treatment and disposal methods:
A leakage contingency
Rapid leak contaminated areas evacuated personnel to a safe area and isolation and strict restrictions on access. Cut off the fire source. Recommended emergency personnel wearing positive pressure self-contained breathing apparatus, wearing fire protective clothing. Do not direct contact with leakage. Cut off the source of as much as possible leakage, prevent access to sewers, flood discharge trench so restrictive space. A small leak: sand, dry lime or soda ash mixture. Can also use non-flammable dispersant made of latex, wash, lotion diluted into the wastewater system. A large number of leak: to build a causeway or trenching asylum; foam coverage, lower vapor disasters. Explosion-proof pump transferred to tankers or exclusive collector, recycling or shipped to the disposal of waste disposal sites.
Second, protective measures
Respiratory protection: its vapor may come into contact, must wear filter respirators (full cover), or self-contained breathing apparatus. Emergency rescue or evacuation, it is recommended to wear oxygen breathing apparatus.
Eye protection: Respiratory protection, protection has been made.
Physical protection: wear protective clothing tape.
Hand protection: wear rubber gloves.
Other: work site prohibit smoking, eating and drinking. Work complete, take a shower. To maintain good hygiene practices.
3, first-aid measures
Contact with the skin: immediately stripped of contaminated clothing, use soap and water thoroughly washed skin. Medical treatment.
Eye contact: immediately filed eyelid, with large flows of water or saline thoroughly washed at least 15 minutes. Medical treatment.
Inhalation: rapidly from the scene to fresh air. To maintain airway patency. If breathing is difficult, give oxygen. If breathing stops, artificial respiration immediately. Medical treatment.
Fresh into: oral intake of water were found to blues or egg white. Medical treatment.
Fire fighting methods: carbon dioxide, dry powder, 1211 fire extinguishing agent, sand. Prohibition of water or foam fire extinguishing.