GB No. 43008
CAS No. 7440-24-6
Molecular Formula Sr
molecular 87.63

silvery white to pale yellow soft metal; Steaming steam pressure 1.33kPa.Conclusion (898 ° C); the temperature of 769 ° C; the boiling point 1384 ° C; solubility : soluble in liquid ammonia, ethanol; density : relative density (water = 1) : 2.54; Stability : unstable; risk Marker 10 (flammable substances wetlands case ); the main purposes : used in the manufacture of alloys, and used a breathing tube agents, but also for chemical analysis, and other pyrotechnic system

2. The impact on the environment :
a health hazard

pathways : inhaled, ingested.
health hazards : so far no reports of occupational poisoning. In animal experiments, the acute symptoms of poisoning strontium is ataxia, abnormal muscle weakness, or even to muscle twitch died as a result. The main cause of death is respiratory failure.

two, toxicology information and environmental behavior

hazardous characteristics : high chemical reactivity, when heated to melting point can be more spontaneous. Fine powder burns easily met fire explosion. With water or acid reaction of hydrogen and emit heat can cause a fire. With halogen, sulfur, phosphorus and other dramatic chemical reactions, cause a fire. Combustion issued scarlet flame.

3. Emergency Monitoring Methods :

4. Laboratory monitoring methods :
AAS (WS/T131-1999, air operations)
Plasma Spectrometry; AAS

5. Environmental standards :
China (3097-1997-1997) water quality standards 90Sr : 4mg/L
the former Soviet Union (1978) Drinking Water and entertainment water harmful substances maximum allowable concentration 2. 0mg/L

6. Emergency treatment and disposal methods :
a leakage contingency

isolation leakage polluted area. Restricted access. Cut off the fire source. Recommended emergency personnel wearing self-contained breathing apparatus, wearing fire protective clothing. Do not direct contact with leakage. A small leak : to avoid dust, collected in a dry, clean, covered containers. Transfer recovery. Large Leak : plastic sheeting, canvas cover and reduce dispersion. The use of non-spark tools to transfer recovery.

two protective measures

respiratory protection : Most do not need special protection, but suggested that under special circumstances, since wearing suction filtered respirators.
eye protection : Wear protective chemical safety glasses.
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 : stripped of contaminated clothing, use soap and water, Dr Chong skin.
eye contact : Did eyelid, mobile water or saline Chong listen. 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 and to seek medical treatment.

fire fighting methods : not water, foam, carbon dioxide, halogenated hydrocarbons (eg 1211 fire extinguishing agent) fire. To use dry graphite powder or other dry powder (of stem sand) fire.