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7721-01-9

Name TANTALUM(V) CHLORIDE
CAS 7721-01-9
EINECS(EC#) 231-755-6
Molecular Formula Cl5Ta
MDL Number MFCD00011253
Molecular Weight 358.21
MOL File 7721-01-9.mol

Chemical Properties

Appearance Pale-yellow, crystalline powder; highly reactive. Decomposed by moist air. Soluble in alcohol and potassium hydroxide solution. Keep well stoppered.
Melting point  221 °C
Boiling point  242 °C
density  3.68 g/mL at 25 °C(lit.)
vapor pressure  69.9hPa at 169.3℃
Fp  242°C
storage temp.  no restrictions.
solubility  Soluble in ether, carbon tetrachloride, sulfuric acid and potassium hydroxide. Slightly soluble in ethanol.
form  powder
color  White to pale yellow
Specific Gravity 3.68
Water Solubility  Soluble in water (reacts). Also soluble in ethanol, ether and carbon tetrachloride.
Sensitive  Moisture Sensitive
Merck  14,9054
InChIKey OEIMLTQPLAGXMX-UHFFFAOYSA-I
Uses
Chlorination of organic substances, intermediate, production of pure metal.
CAS DataBase Reference 7721-01-9(CAS DataBase Reference)
EPA Substance Registry System Tantalum chloride (TaCl5) (7721-01-9)

Safety Data

Hazard Codes  C
Risk Statements 
R22:Harmful if swallowed.
R34:Causes burns.
Safety Statements 
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
RIDADR  UN 3260 8/PG 2
WGK Germany  3
RTECS  WW5600000
3-10-21
TSCA  Yes
HazardClass  8
PackingGroup  III
HS Code  28273990
Safety Profile
Poison by intraperitoneal route. Moderately toxic by ingestion. When heated to decomposition it emits toxic fumes of Cl-.
Toxicity
LD50 in rats (mg/kg): 75 i.p.; 1900 orally (Cochran)

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