GB No. 41506
CAS No. 7439-96-5
Molecular Formula Mn
molecular 54.94

gray powder; Vapor pressure of 0. kPa (1,292 ° C); the temperature of 1260 ° C; the boiling point 1900 ° C; solubility : soluble in acid; density : relative density (water = 1) 7.2; Stability : stability; risk Marker 8 (flammable solids); the main purposes : for manganese Standard Solution Preparation, the agent for the ignited combustible

2. The impact on the environment :
a health hazard

pathways : inhaled, ingested.
health hazards : major chronic poisoning, damage to the central nervous system. The main performance of headache, dizziness, memory impairment, drowsiness, tachycardia, sweating, legs heavy, slow walk, eat, easy as excited. There were heavy "Manganese Parkinson's syndrome," characterized by facial dull, weak, emotionally cold, a distinct language vague, limb rigidity, muscle dashes walk, easily fall back, writing difficulties.

two, toxicology information and environmental behavior

acute toxicity : LD₅₀9000mg/kg (rats) are carcinogenic
: by NIOSH standards for suspicious-induced tumors.

hazardous characteristics : powders in the heat and met fire or contact oxidizer will cause a fire explosion. Mixed oxidants and can form explosive mixtures. With water or acid can react chemically and emit flammable gas. With fluorine, chlorine can be dramatic chemical reactions.
combustion (decomposition) product : manganese oxide.

3. Emergency Monitoring Methods :
P, `P-tetracarboxylic two amino diphenyl methane dipstick assay" of harmful substances in the air of determination, "Hang Shi-ping editor
portable colorimeter (Water) ( Italy Hana products)

4. Laboratory monitoring methods :
flame atomic absorption spectrophotometry (GB11911-89, water)
KIO4 spectrophotometry (GB11906-89, Water), the original
Absorption "Solid Waste Analysis Evaluation Manual," the China Environmental Monitoring terminus translated

5. Environmental standards :
China (TJ36-79) Workshop harmful substances in the air that the maximum allowable concentration 0.2mg/m3 (converted into MnO2)
China (TJ36-79) Residential Area the atmosphere of harmful substances in the maximum allowable concentration -108.9 (days average) (converted into MnO2)
China (GB5749-85) drinking water standard of 0.1 mg / L
China (GHZB1-1999 ) surface water quality standard (mg / L) of the following Class I 0.1; Type II 0.1; Class III 0.1; category IV 0.5; category V 1.0
China (GB/T14848-93) groundwater quality standards (mg / L) 0.05 Class I; category II 0.05; Class III 0.1; category IV 1.0; category V 1.0
China (GB8978-1996) Wastewater row Fang standards (mg / L), a 2.0; two 2.0; three 5.0

6. Emergency treatment and disposal methods :
a leakage contingency

isolation leakage polluted area, located around the warning signs, cut off the source of fire. Recommended emergency personnel wearing gas masks, wearing general fire protective clothing. To avoid dust, the use of non-spark tools in a dry Clean covered containers, recycling transfer.

two protective measures

respiratory protection : its possible exposure to dust, wear a dust mask. When necessary, recommend wearing gas masks.
eye protection : to use safety masks.
protective clothes : wear appropriate protective clothing.
hand protection : general need special protection, high concentrations of contact wear protective gloves can.
other : work site prohibit smoking, eating and drinking. After work, take a shower. Pay attention to personal hygiene.

three, and emergency measures

contact with the skin : the pollution off clothing, mobile water rinse.
eye contact : immediately filed eyelid, mobile water rinse.
INHALED : from the scene to fresh air. When necessary, respirators. Medical treatment. Fresh into
: coverage to those who drink large warm water, the symptoms and to seek medical treatment.

fire fighting methods : dry, sandy soil. Ban water.