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Boron nitride Structure

Boron nitride

Chemical Properties

Melting point 2700℃
Boiling point sublimes sl below 3000℃ [MER06]
Density  0.9-1.1 g/mL at 25 °C
storage temp.  no restrictions.
solubility  insoluble in H2O, acid solutions
form  Powder
Specific Gravity 3.48
color  White
PH 5-8 (100g/l, H2O, 20℃)(slurry)
Resistivity 10*19 (ρ/μΩ.cm)
Water Solubility  Soluble in water (slightly soluble) at 20°C, and water (soluble) at 95°C.
Sensitive  Hygroscopic
Crystal Structure Hexagonal
Merck  14,1346
Stability Stable. Incompatible with oxidizing agents, water.
CAS DataBase Reference 10043-11-5(CAS DataBase Reference)
EWG's Food Scores 1
FDA UNII 2U4T60A6YD
NIST Chemistry Reference Boron nitride(10043-11-5)
EPA Substance Registry System Boron nitride (BN) (10043-11-5)

Safety

Symbol(GHS)
Signal wordDanger
Hazard statements H226-H315-H318-H335
Precautionary statements P210-P233-P240-P280-P303+P361+P353-P305+P351+P338
Hazard Codes  Xi
Risk Statements  36/37
Safety Statements  26-36
RIDADR  UN1950
WGK Germany  3
RTECS  ED7800000
TSCA  Yes
HS Code  2850 00 20
HazardClass  2.1
Toxicity LD50 orally in Rabbit: > 2000 mg/kg LD50 dermal Rat > 2000 mg/kg

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