GB No. 61001
CAS No. 506-64-9
Molecular Formula AgCN
molecular 65.11

white powder or light gray powder, no foul tasteless; vapor pressure; the temperature of 320 ° C (decomposition); solubility : not soluble in water, soluble in alcohol, soluble ammonia, potassium iodide, hot dilute nitric acid; density : relative density (water = 1) 3.95; Stability : stability; risk Marker 13 ( inorganic Judaipin); the main uses for medicine and silver

2. The impact on the environment
a health hazard

pathways : inhaled, ingested.
health hazards : high fever, or by contact with the acid, can produce cyanide gas inhalation after the cyanide poisoning, headache, fatigue, difficulty in breathing, skin and mucous was bright red, convulsions, coma or even death. Eye and skin irritation. Long-term exposure to the onset of emerging silver calmly systemic disease, eye, nose, throat, mouth, skin and internal organs may occur silver calm. Skin circular stone black or light color, high concentrations of repeated exposure can lead to renal damage.

two, toxicology information and environmental behavior

acute toxicity : LD₅₀123mg/kg (rat oral)
hazardous characteristics : Unburning. High fever, or by contact with the acid will have highly toxic cyanide gas. With nitrate, nitrite, perchlorate violent reaction, the risk of explosion. Lu met acid or home air can absorb moisture and carbon dioxide, the decomposition of highly toxic hydrogen cyanide oxidation. Aqueous corrosion of alkaline liquid.
combustion (decomposition) product : cyanide.

3. Scene emergency monitoring methods
dipstick; Speed test tube; Chemical reagent test group; Spectrophotometry; Ion selective electrode "sudden environmental pollution monitoring and emergency treatment and disposal technologies," 10,000 too editor (cyanide)

4. Laboratory monitoring
colorimetric method (GB7486-87, GB7487-87) (cyanide)

5. Environmental standards
China (TJ36-79) Workshop harmful substances in the air that the maximum allowable concentration 0.3mg/m3 (HCN) [Paper]

6. Emergency treatment and disposal methods
a leakage contingency

of leakage must be handled as wearing gas masks and gloves, So, a lot down to the water. Join NaClO or excessive bleaching powder, placed for 24 hours, all confirmed cyanide decomposition, diluted Add to the wastewater system. The contaminated area with bleach solution or NaClO Baptist-24 hours later, with plenty of water rinse, Add Water Wastewater System unified handling. Right HCN gas shall be sent to the ventilation hood or gas into sodium carbonate solution, with the same amount of NaClO to 10-6 mol / L NaOH and sewage into the wastewater system so unified handling.

two protective measures

respiratory protection : possible exposure to toxic, must wear headgear electric powered air-purifying respirators and dust. Its possible exposure to dust, it should be isolated to wear respirators.
eye protection : Respiratory Protection has been protective.
physical protection : Cruise-wear protective clothing 52,400.
hand protection : Wear rubber gloves.
other : work site prohibit smoking, eating and drinking. Work to complete, thorough cleansing. Workshops should be equipped with first aid equipment and medicines. Separate storage of toxic pollution by the clothes, washed standby. Workers should learn how to help themselves and mutual aid.

three, and emergency measures

contact with the skin : immediately stripped of contaminated clothing, with the flow of water or 5% Thiosulfate Solution thoroughly washed at least 20 minutes for 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. Respiratory heartbeat stop immediately mouth (not to use oral counterparts) and thoracic cardiac massage for. To inhalation isoamyl nitrite and medical treatment. Fresh into
: warm water to drink enough, the symptoms, using 1:5000 potassium permanganate or 5% sodium thiosulfate solution gastric lavage. Medical treatment.

fire fighting methods : fire officers must wear special body protective clothing. Extinguishant : dry powder, sand, which prohibits the use of carbon dioxide and acid-base fire extinguishant.