GB
CAS No. 61079, Molecular Formula C₂HCl₃O
75-87-6; Cl<sub>3< / SUB>CCHO
molecular 147.39

volatile colorless oily liquid, irritating odor; 4.67kPa vapor pressure (20 ° C); melting point -57.5 ° C the boiling point of 97.7 ° C; solubility : soluble in water, alcohol, ether, chloroform; density : relative density (water = 1) 1.51; the relative density (Air = 1) 5.1; Stability : stability; risk Marker 14 (drugs); the main purposes : DDT used for the manufacture of organic and synthetic</sub>

2. The impact on the environment :
a health hazard

pathways : inhaled, ingested, percutaneous absorption.
health hazards : the goods on the skin and mucous membranes have a strong stimulating effect. Animal strong systemic toxicity caused anesthetic effects. Short-term performance excited, and then restrained, ataxia, side down, anesthesia and death.

two, toxicology information and environmental behavior

toxicity : highly toxic.
acute toxicity : LD₅₀50 ~ 400mg/kg · (mice by mouth); 1.0 ~ 10g/kg (by the skin of guinea pigs)

hazardous characteristics : heat decomposition released tear and corrosive gases.
combustion (decomposition) products : carbon monoxide, carbon dioxide, hydrogen chloride.

3. Emergency Monitoring Methods :

4. Laboratory monitoring methods :
Pyrazolone spectrophotometry (HJ/T49-1999, water)
topiramate bang-base method "of harmful substances in the air of Determination" (second edition), Hang Shi-ping series

5. Environmental standards :
former Soviet air workshop harmful substances maximum allowable concentration 5mg/m3
China (GB5048-92), irrigation water quality standards (mg / L) of water for 1.0 ; dry 0.5; vegetables 0.5
the former Soviet Union (1975) Harmful Substances in Water maximum allowable concentration of 0.2 mg / L

6. Emergency treatment and disposal methods :
a leakage contingency

rapid withdrawal from air leakage personnel to a safe area, and isolation and strict restrictions on access. Recommended emergency personnel wearing self-Pressurized respirators to wear protective clothing. Do not direct contact with leakage. As far as possible, cut off the source of leakage. Preventing access to sewers, flood discharge trench so restrictive space. A small leak : sand or other materials Unburning adsorption or absorption. We could also use a lot of water rinse, diluted Add Water Wastewater System. Large leak : to build a causeway or trenching asylum; Foam coverage, lower vapor disasters. With the transfer pump to tankers or exclusive collector, recycling or shipped to the disposal of waste disposal sites.

two protective measures

respiratory protection : its possible exposure to vapor, must wear self-absorption filter respirators (full cover). Emergency rescue or evacuation, air respirators to wear.
eye protection : Respiratory Protection has been protective.
physical protection : wear protective clothing 52,400.
hand protection : Wear rubber gloves.
other : work site prohibit smoking, eating and drinking. Work to complete, thorough cleansing. Separate storage of toxic pollution by the clothes, washed standby.

three, and emergency measures

contact with the skin : immediately stripped of contaminated clothing, with a large number of mobile wash, at least 15 minutes. Medical treatment.
eye contact : immediately filed eyelid, with a large number of mobile water or saline thoroughly washed at least 15 minutes. Medical treatment.
Inhalation : rapidly from the scene to fresh air. To keep the airway patency. If breathing is difficult, give oxygen. If breathing stop immediately mouth. Medical treatment. Fresh into
: warm water to drink enough, the symptoms and to seek medical treatment.

fire fighting methods : firefighters are required to wear gas masks, body wear firefighting suits. Extinguishant : atomised water insoluble anti-bubble, carbon dioxide, sand.