GB No. 82503
CAS No. 1336-21-6
Molecular Formula NH4OH
transparent colorless liquid, the irritating odor; RAAS vapor pressure (20 ° C); melting point solubility : soluble in water, alcohol; density : relative density (water = 1) 0.91; Stability : stability; risk Marker 20 ( alkaline corrosive substances); the main purposes : for the pharmaceutical industry, Miao Zhao industry, the printing of plans, agricultural fertilization
2. The impact on the environment :
a health hazard
pathways : inhaled, ingested.
health hazard : inhalation after the nose, throat and lung irritation caused a cough, shortness of breath and asthma; May laryngeal edema and choked to death; Pulmonary edema can occur, causing death. Ammonia splash pleasant to the eye, which can cause serious damage and even lead to blindness; Contact with the skin can be induced burns.
chronic effects : repeated exposure to low concentration, can cause bronchitis. Repeated contact with the skin can cause dermatitis, skin drying performance, the itch and redness.
two, toxicology information and environmental behavior
toxicity : is low toxicity category.
acute toxicity : LD50350mg/kg (rat oral)
hazardous characteristics : easy to produce ammonia decomposition, the higher the temperature, the faster the decomposition can form explosive atmosphere. In case of high fever, increased pressure within containers, cracking and the risk of explosion.
combustion (decomposition) product : ammonia.
3. Emergency Monitoring Methods :
detection tube method
4. Laboratory monitoring methods :
Nessler'Sreagent colorimetry (GB7479-87)
acid spectrophotometry (GB7481-87)
5. Environmental standards :
China (GB/T14848-93) groundwater quality standards (ammonia, mg / L) Class I and Class III Class II Class IV Class V
0.02 0.02 0.2 0.5 0.5
China (GB11607-89) fishing water quality standard (non-ionic ammonia), 0.02 mg / L
China (GHZB1-1999) Surface Water Quality Standards (Ammonia , mg / L) Class I 0.5; Type II 0.5; Class III 0.5; category IV 1.0; category V 1.5
surface water quality standard (non-ionic ammonia, mg / L) I category 0.02; category II 0.02; Class III 0.02; category IV 0.2; category V 0.2
China (3097-1997-1997) water quality standards (non-ionic ammonia) 0 to 0.020mg / L
China (GB5048-92), irrigation water quality standards (Kjeldahl nitrogen) water : 12mg/L
dry : 30mg/L
vegetables : 30 mg / L
China (GB8978-1996 ) sewage discharge standards (N) Pharmaceutical, dyes and petrochemical industries : a 15mg / L; 2 mg / L sewage
other units : one 15mg / L; two 25 mg / L
6. Emergency treatment and disposal methods :
a leakage contingency
leak contaminated areas evacuated personnel to a safe area, not to prohibit access to the contaminated area, the proposed emergency personnel wearing self-contained breathing apparatus to wear chemical protective clothing. Do not direct contact with leakage, in ensuring the safety of plugging. Rinse with plenty of water, diluted Add Water Wastewater System. Use sand, vermiculite or other inert materials to absorb, and then to a small number of massive water, adjust to neutral, then add the wastewater system. If large spills, using a causeway asylum, and then to collect, transfer, recycling or waste processed sound.
two protective measures
respiratory protection : its vapor may come into contact with, they should wear protective masks. Emergency rescue or escape, it is recommended to wear self-contained breathing apparatus.
eye protection : Wear protective chemical safety glasses.
protective clothing : wearing overalls.
hand protection : Wear gloves against chemicals.
other : work site prohibit smoking, eating and drinking. After work, take a shower. To maintain good health habits.
three, and emergency measures
contact with the skin : Immediately wash with water for at least 15 minutes. If it burns, medical care treatment.
eye contact : immediately filed eyelid, mobile or saline irrigation water for at least 15 minutes. Or 3% boric acid solution rinse. Immediate medical treatment.
Inhalation : rapidly from the scene to fresh air. To keep the airway patency. Difficult to breathe oxygen. Stop breathing, artificial resuscitation immediately. Medical treatment. Fresh into
: coverage immediately mouthwash, oral diluted vinegar or lemon juice and medical treatment.
fire fighting methods : mist of water, carbon dioxide, sand.
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