GB No. CAS US> No. 7789-78 -8
Molecular Formula CaH₂
molecular 42.10

massive gray crystalline or vulnerable deliquescence; boiling point decomposition; melting point 675 ° C (decomposition); solubility : not soluble in carbon disulfide, micro-soluble concentrated acid; density : the relative density (Water = 1) 1.7; Stability : unstable; risk Marker 10 (case of wet flammable substances); the main purposes : as the reductant, desiccant, chemical analysis reagents k

2. The impact on the environment : a
, Kin kang against

pathways : inhaled, ingested.
health hazards : the right goods mucosa, upper respiratory tract, eyes and skin irritation strong. After inhaling, because the larynx and bronchial spasm, inflammation, edema, chemical pneumonia or pulmonary edema and death. Contacted after the burning sensation, coughing, wheezing, laryngitis, shortness of breath, headache, nausea and vomiting.

two, toxicology information and environmental behavior < / SPAN>

hazardous characteristics : high chemical reactivity and met moisture, water or acid Class reaction and emit hydrogen and can cause a fire. With the oxidizer, metal oxides react violently. Case Humidity and water generation hydroxide, a strong corrosive.
combustion (decomposition) product : calcium oxide and water.

3. Emergency Monitoring Methods :

4. laboratory monitoring methods :
AAS

5. Environmental standards :

6. emergency treatment and disposal methods :
a leakage contingency

isolation leak contaminated areas, restricting access. Cut off the fire source. Recommended emergency personnel wearing self-contained breathing apparatus to wear anti-acid dress. Do not direct contact with leakage. A small leak : to avoid dust, the use of non-spark tools in a dry, clean, covered containers. Transfer to a safe place. Large Leak : plastic sheeting, canvas cover and reduce dispersion. With the technology sector linkages, and to determine methods to remove.

two protective measures

respiratory protection : contact poison, it should wear a hood - electric powered air-purifying respirators and dust. When necessary, proposals to wear self-contained breathing apparatus.
eye protection : Respiratory Protection has been protective.
physical protection : wear chemical protective clothing.
hand protection : Wear rubber gloves.
other : no smoking scene work. Pay attention to personal hygiene.

three, and emergency measures

contact with the skin : immediately stripped of contaminated clothing and spend a lot of money flows water washing, 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. Fresh into
: oral intake of water were found to blues or egg white. Medical treatment.

fire fighting methods : not water, foam, dioxane CFC, halocarbons (1211 extinguishing agents) fire. Only metal lid or dry graphite powder dry dolomite suffocation put out the fire. < ride? Xml : namespace prefix = o ns = "urn : schemas - microsoft-com : office : office" / >
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