1. Physical and chemical constants of substances:
National standard number 61103
CAS number 105-36-2
The Chinese name is ethyl bromoacetate
The English name is ethyl bromoacetate
Ethyl bromoacetate
Molecular formula C4H7BrO2; BrCH2COOCH2CH3 Appearance and properties Colorless to yellow liquid
Molecular weight 167.01 vapor pressure 0.35kPa/25℃ Flash point: 47.8℃
Boiling point 158.8℃ solubility insoluble in water, can be miscible soluble in ethanol, ether, benzene
Density relative density (water =1)1.51; Relative density (air =1)5.8 Stability Stable
Danger mark 14(drug) is mainly used for organic synthesis, manufacture of military gas
2. Impact on the environment:
1. Health hazards
Invasion route: inhalation, ingestion, percutaneous absorption.
Health hazard: It has strong irritant effect on eyes, skin, mucous membrane and respiratory tract. Severe cases can cause pulmonary edema.
Ii. Toxicological data and environmental behavior
Acute toxicity: The lethal concentration was 2300mg/m3×10 min after inhalation. Human inhalation 3mg/m3, tear; When people inhale 40mg/m3, there is intolerable irritation to the eyes. Human inhalation of 55mg/m3×1 minute, cannot tolerate.
Carcinogenicity: The lowest subcutaneous toxic dose (TDL0) in mice was 332mg/kg (83 weeks, discontinuous).
Dangerous characteristics: flammable, in contact with open fire, high heat or oxidant, there is a risk of combustion and explosion. Subject to high thermal decomposition to produce toxic bromide gas.
Combustion (decomposition) products: carbon monoxide, carbon dioxide, hydrogen bromide.
3. On-site emergency monitoring methods:
4. Laboratory monitoring methods:
Halogenated carboxylic acids in beverages: Determination by Gas Chromatography and Confirmation by Gas chromatography-Negative Chemical Ionization Mass Spectrometry [J]/Fuerst P.; Krueger C.,Habersaat K.... // z.lbensm. -Unters.Forsch.-1987,185(1).-17 ~ 20. Analytical Chemical Abstracts, 1988.10.
5. Environmental standards:
6. Emergency treatment:
First, emergency treatment of leakage
Quickly evacuate the contaminated area to the safety zone, and quarantine, strictly restrict access. Emergency personnel are advised to wear self-contained positive pressure breathing apparatus and protective clothing. Do not contact spills directly. Prevent access to sewers, siphons and other restricted Spaces. Small leakage: adsorption or absorption with sand or other non-combustible materials. A large amount of leakage: build a dike or dig a pit to receive; Cover with foam to reduce steam hazard. Transfer by pump to tank car or special collector, recovery or transport to waste disposal site disposal.
Ii. Protective measures
Respiratory protection: self-priming filter gas mask (full cover) must be worn when possible contact with its vapor. Wear oxygen respirator during emergency rescue or evacuation.
Eye protection: Respiratory system protection has been protected.
Body protection: Wear a one-piece adhesive cloth anti-poison jacket.
Hand protection: Wear rubber gloves.
Others: Smoking, eating and drinking are prohibited on site. Eye and skin washing equipment is available on site. After work, wash thoroughly. Store poison-contaminated clothes separately and wash them for later use.
Third, first aid measures
Skin contact: Remove contaminated clothing, wash skin thoroughly with soapy water and clean water, and seek medical attention.
Eye contact: Immediately lift eyelids and rinse thoroughly with plenty of running water or saline for at least 15 minutes. Seek medical attention.
Inhalation: Quickly remove from the scene to fresh air. Keep your airway clear. Give oxygen if breathing is difficult. If breathing stops, give artificial respiration immediately. Seek medical attention.
Ingestion: Drink enough warm water to induce vomiting. Seek medical attention.
Fire extinguishing method: Fire fighters must wear gas mask and full body fire suit. Extinguishing agent: anti - soluble foam, dry powder, sand.