IUPAC Name: Pentachloro-λ⁵-stibane
Synonyms: Antimony pentachloride ; Antimony, pentachloro- ; Pentachlorostiborane ; Antimony (V) chloride
Product Categories: Intermediates of Dyes and Pigments;Inorganics;Antimony Salts;Metal and Ceramic Science;Salts
CAS NO: 7647-18-9
Molecular Formula of Antimony(V) chloride (CAS NO.7647-18-9) : Cl₅Sb
Molecular Weight of Antimony(V) chloride (CAS NO.7647-18-9) : 299.02
Molecular Structure of Antimony(V) chloride (CAS NO.7647-18-9) :
EINECS: 231-601-8
Mol File: 7647-18-9.mol
Merck : 14,695
Melting point: 2.8 °C(lit.)
Boiling Point: 92 °C30 mm Hg(lit.)
Flash Point: 79°C/22mm
Density 2.36 g/mL at 25 °C(lit.)
Vapor density >10.2 (vs air)
Vapor pressure 0.13 psi ( 55 °C)
Refractive index 1.601
Sensitive Moisture Sensitive
Stability: Stable, but reacts with moisture and water. Releases highly toxic fumes if involved in a fire.
Appearance:colourless to light yellow oily liquid

 Antimony(V) chloride (CAS NO.7647-18-9) is used for high-purity analytical reagents, catalysts, and also for preparation of high purity antimony.

 Antimony(V) chloride (CAS NO.7647-18-9) is prepared by passing chlorine gas into molten antimony trichloride:
SbCl₃ + Cl₂ → SbCl₅ 
 

Reported in EPA TSCA Inventory. Antimony and its compounds are on the Community Right-To-Know List.

Poison by ingestion. Corrosive. Mutation data reported. See ANTIMONY COMPOUNDS and ANTIMONY(III) CHLORIDE. When heated to decomposition it emits very toxic fumes of Cl⁻ and Sb.
Hazard Codes T,N,C
Risk Statements 34-51/53-40-23/24/25-14
R23/24/25:Toxic by inhalation, in contact with skin and if swallowed. 
R14 :Reacts violently with water. 
R34:Causes burns. 
R40:Limited evidence of a carcinogenic effect. 
R51/53:Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
Safety Statements 26-45-61-36/37/39-23
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) 
S61:Avoid release to the environment. Refer to special instructions / safety data sheets.
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection. 
S23:Do not breathe vapour.
RIDADR UN 1731 8/PG 3
WGK Germany 2
RTECS CC5075000
F 10
HazardClass 8
PackingGroup II

OSHA PEL: TWA 500 µg(Sb)/m³
ACGIH TLV: TWA 0.5 mg(Sb)/m³
NIOSH REL: (Antimony) TWA 0.5 mg(Sb)/m³
DOT Classification:  8; Label: Corrosive

1.General Description :A reddish-yellow fuming liquid with a pungent odor. Fumes are irritating to the eyes and mucous membranes. Solidifies at 37°F. Corrosive to metals and tissue. Used to make other chemicals, and in chemical analysis.
2.Air & Water Reactions: Fumes in air to form hydrochloric acid. Reacts with water to yield heat and antimony pentaoxide (Sb₂O₅) and hydrochloric acid 3.Reactivity Profile: Acidic salts, such as Antimony pentachloride , are generally soluble in water. The resulting solutions contain moderate concentrations of hydrogen ions and have pH's of less than 7.0. They react as acids to neutralize bases. These neutralizations generate heat, but less or far less than is generated by neutralization of inorganic acids, inorganic oxoacids, and carboxylic acid. They usually do not react as either oxidizing agents or reducing agents but such behavior is not impossible. Many of these compounds catalyze organic reactions.
4.Health Hazard :Inhalation causes irritation of nose and throat. Contact of liquid with eyes or skin causes severe burns. Ingestion causes vomiting and severe burns of mouth and stomach. Overexposure by any route can cause bloody stools, slow pulse, low blood pressure, coma, convulsions, cardiac arrest.
5.Fire Hazard :Behavior in Fire: Irritating fumes of hydrogen chloride given off when water or foam is used to extinguish adjacent fire.