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12070-14-3

Name Zirconium carbide
CAS 12070-14-3
EINECS(EC#) 235-125-1
Molecular Formula CZr
MDL Number MFCD00049640
Molecular Weight 103.23
MOL File 12070-14-3.mol

Chemical Properties

Appearance Gray, crystalline solid. Mohs hardness 8+. Insoluble in water and hydrochloric acid; soluble in oxidizing acids and attacked by oxidizers.
Melting point  3540°C
Boiling point  5100°C
density  6.73 g/mL at 25 °C(lit.)
RTECS  ZH7155000
form  powder
color  Gray
Specific Gravity 6.73
Water Solubility  Soluble in concentrated sulfuric acid, hydrofluoric acid and nitric acid. Insoluble in water.
Exposure limits ACGIH: TWA 5 mg/m3; STEL 10 mg/m3
NIOSH: IDLH 25 mg/m3; TWA 5 mg/m3; STEL 10 mg/m3
InChIKey MHMXYYDKIQTOHA-UHFFFAOYSA-N
Uses
zirconium carbide (ZrC) and Titanium carbide (TiC) are extremely hard refractory metal compounds. TiC, ZrC, VC and NbC are commercially used in tool bits for cutting tools. ZrC is used extensively as coating of UO2 and ThO2 particles of nuclear fuel.
EPA Substance Registry System Zirconium carbide (ZrC)(12070-14-3)

Safety Data

Hazard Codes  F,Xn
Risk Statements 
Safety Statements 
RIDADR  UN 3178 4.1/PG 3
WGK Germany  3
TSCA  Yes
HazardClass  4.1
PackingGroup  III

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