GB
CAS No. 61001, Molecular Formula
Hg (CN) 89.56 ₂
molecular

monoclinic crystal white powder or greenish powder; vapor pressure; melting point decomposition; solubility : soluble in water, methanol, ethanol, ammonia, benzene insoluble; density : relative density (water = 1) 4.00; Stability : stability; risk Marker 13 (inorganic Judaipin); the main uses for the medicine, bactericidal soap, photography and reagents for the analysis of

2. The impact on the environment

a health hazard

pathways : inhaled, ingested, percutaneous absorption
health hazards : contact after cyanide and mercury severe symptoms may arise. The goods dust inhalation can cause severe acute symptoms are chest pain or tightening flu, cough, dyspnea; Cyanide severe symptoms include anxiety, neurotic disorders, dizziness, difficulty in breathing, convulsions, was a breath of amygdalin taste. Oral suffer from abdominal pain, vomiting, diarrhea and eye above cyanide heavy symptom. Eye contact caused corneal ulcers and edema. A pair of skin irritation, can cause dermatitis, percutaneous absorption can cause poisoning.

two, toxicological and environmental data for < Heng / P>

acute toxicity : LD₅₀25mg/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 gas.
combustion (decomposition) products : hydrogen cyanide, nitrogen oxides.

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 methods

colorimetry (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. Emergency rescue or evacuation, it is recommended to wear self-contained breathing apparatus.
eye protection : Respiratory Protection has been protective.
physical protection : wear protective clothing Tom 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. Workshops should be equipped with first aid equipment and medicines. 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.