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Gallium arsenide Structure

Gallium arsenide

Chemical Properties

Melting point 1238°C
Density  5.31 g/mL at 25 °C (lit.)
vapor pressure  0Pa at 20℃
refractive index  3.57
form  pieces
color  Dark gray
Specific Gravity 5.31
Resistivity ≥1E7 Ω-cm
Water Solubility  Soluble in hydrochloric acid. Insoluble in water, ethanol, methanol and acetone.
Crystal Structure Cubic, Sphalerite Structure - Space Group F(-4)3m
Merck  14,4347
CAS DataBase Reference 1303-00-0(CAS DataBase Reference)
EWG's Food Scores 8
FDA UNII 27FC46GA44
Proposition 65 List Gallium Arsenide
IARC (Vol. 86, 100C) 2012
EPA Substance Registry System Gallium arsenide (1303-00-0)

Safety

Symbol(GHS)
Signal wordDanger
Hazard statements H350-H360F-H372
Precautionary statements P202-P260-P264-P270-P280-P308+P313
Hazard Codes  T,N
Risk Statements  23/25-50/53-48/23-45
Safety Statements  20/21-28-45-60-61-53
RIDADR  UN 1557 6.1/PG 2
WGK Germany  3
RTECS  LW8800000
10
TSCA  Yes
HazardClass  6.1
PackingGroup  II
HS Code  2853909090
Hazardous Substances Data 1303-00-0(Hazardous Substances Data)
Toxicity mouse,LD50,intraperitoneal,4700mg/kg (4700mg/kg),BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)PERIPHERAL NERVE AND SENSATION: FLACCID PARALYSIS WITHOUT ANESTHESIA (USUALLY NEUROMUSCULAR BLOCKAGE)BEHAVIORAL: FOOD INTAKE (ANIMAL),Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 45(10), Pg. 13, 1980.
NFPA 704:
1
3 2

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