GB No. 21044
CAS No. 124-40-3
Molecular Formula C2H7N; (CH k3) 2NH
colorless gas, have concentrated on Ammonia Odor, parklands are rotten fish flavor; vapor pressure 202.65kPa/10 ° C flash point -17.8 ° C; -92.2 ° C melting point; boiling point 6.9 ° C; solubility : soluble in water, soluble in alcohol, ether; density : relative density (water = 1) 0.68; the relative density (Air = 1) 1.55; Stability : stability; risk Marker 4 (flammable gases); the main purposes : for organic synthesis and precipitation of zinc hydroxide
2. The impact on the environment :
a health hazard
pathways : inhaled, ingested, percutaneous absorption.
health hazards : ocular and respiratory products have a strong stimulating effect. Dimethylamine contact with the liquid can cause necrosis of the skin, eye contact can cause injury to the cornea and turbidity.
two, toxicology information and environmental behavior
toxicity : is low toxicity category.
acute toxicity : LD50316mg/kg (mice by mouth); 0.698g/kg (rat oral); LC508354mg/m3, 6 hours (rat inhalation)
irritation : a rabbit eyes : 50mg (5 minutes), to stimulate the eye.
Mutagenicity : Cytogenetic analysis : rats inhaled 50 µ g/m3. Sister chromatid exchange : CHO 500 µ mol / L, respectively.
hazardous characteristics : flammable, mixed with air can form explosive mixtures. Case heat and the fire is burning a risk of explosion. Contact with the oxidizer will be fierce response. Gas is heavier than air, will spread to the lower Department of considerable local and met the fire will generate a return to burning.
combustion (decomposition) products : carbon monoxide, carbon dioxide, nitric oxide.
3. Emergency Monitoring Methods :
4. Laboratory monitoring methods : gas chromatography
"air of harmful substances in the Determination" (second edition), Hang Shi-ping editor
5. Environmental standards :
China (TJ36-79) Workshop harmful substances in the air that the maximum allowable concentration 10mg/m3
the former Soviet Union (1977) neighborhood atmosphere of harmful substances maximum allowable concentration of 0. 005mg/m3 (maximum, average day and night)
the former Soviet Union (1975) Harmful Substances in Water maximum allowable concentration of 0.1 mg / L
olfactory threshold concentration 165mg/m3
6. Emergency treatment and disposal methods :
a leakage contingency
rapid withdrawal of staff from air leakage supremacy wind and isolation and strict restrictions on access. Cut off the fire source. Recommended emergency personnel wearing respirators-positive pressure self-sufficiency, wearing fire protective clothing. As far as possible, cut off the source of leakage. Using industrial coating or adsorption / absorbent cover near the leaking sewer, and other gases to prevent access. A reasonable ventilation, accelerated proliferation. Spray - diluted solution. To build a causeway or trenching asylum produce a lot of wastewater. If possible, use exhaust gas leakage sent an open area for the installation of appropriate nozzle or burned. Leak containers should be properly handled, repair, testing later use.
waste disposal method : incineration. Incinerator emission of nitrogen oxides through the scrubber or high temperature devices removed.
two protective measures
respiratory protection : air concentrations exceeding the recommended wearing self-absorption filter respirators (full cover). Emergency rescue or evacuation, it is recommended to wear oxygen breathing apparatus or air respirators.
eye protection : Respiratory Protection has been protective.
physical protection : antistatic wear uniforms.
hand protection : Wear rubber gloves.
other : work site no smoking, eating and drinking. Work to complete, take a shower.
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.
fire fighting methods : cut off of gas supply. If not immediately cut off the gas supply, it is not extinguished combustion gases. Cooling water containers, if possible to move containers from the scene empty Department. Extinguishant : mist, anti-insoluble bubble, dry powder, carbon dioxide.
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