GB No. 51057
CAS No. 13477-34-4
Molecular Formula Ca (NO₃) ₂ 4Hk UB>2O
molecular 236.15

colorless transparent monoclinic crystal or powder; vapor pressure; the temperature 45 ° C; the boiling point of 151 ° C / saturated solution; solubility : diffluent in water, ammonia, acetone, alcohol, ethanol, is not soluble in concentrated nitric acid; density : relative density (water = 1) 1.9; Stability : stability; risk Marker 11 (oxidizer); the main purposes : for the manufacture of fireworks, explosives, matches, fertilizer, etc.

2. The impact on the environment :
a health hazard

pathways : inhaled, ingested, percutaneous absorption.
health hazard : inhalation of dust on the goods nose, throat and respiratory tract irritation, coughing and chest caused discomfort. Eye irritation there. Long-term repeated contact with dust is irritating to the skin.

two, toxicology information and environmental behavior

acute toxicity : LD₅₀3900mg/kg (rat oral)
hazardous characteristics : strong oxidants. Heating decomposition and emit oxygen. With organic, reductant, combustibles such as sulfur, phosphorus or metal powders can be mixed to form an explosive mixture. Combustion decomposition and emit toxic nitrogen oxides. By heat decomposition, produce toxic nitrogen oxides.
combustion (decomposition) products : nitrogen oxides.

3. Emergency Monitoring Methods :
water rapid colorimetric tube (Japan system, nitrate)

4. Laboratory monitoring methods : acid
phenol two spectrophotometry (GB7480-87, Water) (nitrate)
ion chromatography (GB13580.5-92, Water) (nitrate)

5. Environmental standards :
China (GB5749-85) drinking water standard 20 mg / L (nitrate, N dollars)
China (GB/T14848-93) groundwater quality standards (mg / L) Class I 2.0; Type II 5.0; Class III 20; class IV 30; category V 30 above (nitrate, N dollars)
China (GHZB1-1999), surface water quality standard ( mg / L) Class I 10; Class II 10; Class III 20; class IV 20; category V 25 (nitrate, N dollars)

6. Emergency treatment and disposal methods :
a leakage contingency

isolation leak contaminated areas, restricting access. Recommended emergency personnel wearing self-absorption filter respirators, wearing overalls general operations. Do not direct contact with leakage. Rendering leakage with organic matter, reducing agents, flammable or metal powder contacts. A small leak : rinse with plenty of water, diluted Add Water Wastewater System. Large Leak : plastic sheeting, canvas cover and reduce dispersion. The collection then shipped to recycling or waste disposal sites.

two protective measures

respiratory protection : its possible exposure to dust, wear a recommendation from the suction filtered respirators.
eye protection : Wear protective safety glasses.
physical protection : Polyethylene wear protective clothing.
hand protection : Wear rubber gloves.
other : work site prohibit smoking, eating and drinking. Work to complete, take a shower. To maintain good health habits.

three, and emergency measures

contact with the skin : stripped of contaminated clothing, with a large number of mobile water rinse.
eye contact : Did eyelid, mobile or saline irrigation water. 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. Medical treatment.

fire fighting methods : firefighters are required to wear gas masks, body wear firefighting suits. Mist with water, sand fire. Do not flow directly from radio to melt, to avoid serious fire or the flow causes intense boiling splash.