7647-18-9 Usage
Chemical Properties
Different sources of media describe the Chemical Properties of 7647-18-9 differently. You can refer to the following data:
1. colourless to light yellow oily liquid
2. Antimony pentachloride is a noncombustible,
colorless to reddish-yellow oily liquid with an offensive
odor.
Physical properties
Antimony pentachloride is prepared by passing chlorine gas into molten antimony trichloride:SbCl3 + Cl2 →SbCl5or by the reaction of the element with excess chlorine:2 Sb + 5 Cl2 → 2 SbCl5.
Uses
Different sources of media describe the Uses of 7647-18-9 differently. You can refer to the following data:
1. Antimony(V) chloride is used as a catalyst and an analytical reagent for testing alkaloids and cesium. It is also used as a polymerization catalyst as well as involved in the chlorination of organic compounds. It acts as a Lewis acid and a strong oxidizing agent.
2. As catalyst when replacing a fluorine substituent with chlorine in organic compounds.
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.
Air & Water Reactions
Fumes in air to form hydrochloric acid. Reacts with water to yield heat and antimony pentaoxide (Sb2O5) and hydrochloric acid [Merck 11th ed. 1989].
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.
Hazard
Corrosive, fumes in moist air, reacts
strongly with organics.
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.
Fire Hazard
Behavior in Fire: Irritating fumes of hydrogen chloride given off when water or foam is used to extinguish adjacent fire.
Safety Profile
Poison by ingestion.
Corrosive. Mutation data reported. See
ANTIMONY COMPOUNDS and
ANTIMONYPII) CHLORIDE. When
heated to decomposition it emits very toxic
fumes of Cland Sb.
Potential Exposure
It is used in dyeing, coloring metals
and in many organic chemical reactions as a catalyst.
Shipping
UN1730 (liquid) Antimony pentachloride, liquid,
Hazard class: 8; Labels: 8-Corrosive material. UN1731
(solution) Antimony pentachloride, solutions, Hazard class:
8; Labels: 8-Corrosive material.
Incompatibilities
Decomposes on contact with heat, acids,
alkalis, ammonia, water or other forms of moisture producing
fumes of hydrogen chloride and antimony. Decomposes
above 77 C forming chlorine and antimony trichloride.
Attacks many metals in the presence of moisture forming
explosive hydrogen gas. Reacts with air forming corrosive
vapors.
Waste Disposal
Encapsulate and transfer to an
approve landfill. If chemically treated and neutralized, the
chemical is amenable to biological treatment at municipal
sewage treatment plant. Consult with environmental regulatory
agencies for guidance on acceptable disposal practices.
Generators of waste containing this contaminant (≥100 kg/
mo) must conform with EPA regulations governing storage,
transportation, treatment, and waste disposal.
Check Digit Verification of cas no
The CAS Registry Mumber 7647-18-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,6,4 and 7 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 7647-18:
(6*7)+(5*6)+(4*4)+(3*7)+(2*1)+(1*8)=119
119 % 10 = 9
So 7647-18-9 is a valid CAS Registry Number.
InChI:InChI=1/5ClH.Sb/h5*1H;/q;;;;;+5/p-5
7647-18-9Relevant articles and documents
Feigl,Schummer
, p. 249 - 249 (1924)
On tetrachlorophosphonium chlorometallates of rhenium and molybdenum: Syntheses, crystal structures, and magnetism of [PCl4]2[Re2Cl10] and [PCl4]3[ReCl6]2, and the magnetic properties of [PCl4]2[Mo2Cl10]
Beck,Mueller-Buschbaum,Wolf
, p. 975 - 981 (2008/10/08)
MoCl4, ReCl4, and ReCl5 react with PCl5 in sealed glass ampoules at temperatures between 220° and 320° to [PCl4]2[Mo2Cl10] (1) [PCl4]2[Re2Cl10] (2), and [PCL4]3[ReCl6]2 (3). 2 crystallizes isotypically to the previously reported 1 and the respective titanium and tin containing analogues. The structure (triclinic, P1 Z = 1, a = 897.3(2), b = 946.0(2), c = 687.13(9) pm, α = 95.59(2)°, β = 95.80(2)°, γ = 101.07(2)°, V = 565.4(2) 106 pm3) is built of tetrahedral [PCl4]+ and edge sharing double octahedral [Re2Cl10]2- ions and can be derived from a hexagonal closest packing of Cl- ions with tetrahedral and octahedral holes partially filled by P(V) and Re(IV), respectively. 3 crystallizes isotypically to [PCL4]3[PCl6][MCl6] (M = Ti, Sn) (tetragonal, P 42/mbc, Z = 4, a = 1496.2(1), c = 1363.2(2) pm). Because no evidence was found for the presence of [PCl6]- ions, Re in 3 has to be of mixed valency with ReIV and ReV sharing the same crystallographic site. The structure can be derived from a cubic closest packing or alternatively from an only sparsely distorted body centered cubic arrangement of Cl- ions which is rarely found for anion arrays. The tetrahedral and octahedral holes are partially filled by PV and MIV/V, respectively. Magnetic measurements show all three compounds to be paramagnetic and confirm the oxidation state IV for Mo and Re in 1 and 2 and the mixed valence (IV/V) for Re in 3.
Ammoxidation of saturated hydrocarbons
-
, (2008/06/13)
The alkanes, e.g., propane, are ammoxidized into admixtures containing α,β-unsaturated nitriles, e.g., admixture of acrylonitrile and propylene, by reacting such alkane with ammonia and oxygen, in vapor phase, in the presence of a catalytically effective amount of a solid catalyst, at least one active catalytic phase of which having the empirical formula (I): optionally also containing iron and/or gallium and/or indium, in which a is a whole or fractional number equal to or greater than 1, b is a whole or fractional number equal to or greater than 0.01, and x is a whole or fractional number provided by the oxidation number of the other elements of the at least one active catalytic phase.