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CHROMIUM (III) CHLORIDE

Physical Properties Uses Preparation Reactions
CHROMIUM (III) CHLORIDE
CHROMIUM (III) CHLORIDE structure
CAS No.
10025-73-7
Chemical Name:
CHROMIUM (III) CHLORIDE
Synonyms
c.i.77295;Chrometrace;4-Chromanone96%;CHROMIC CHLORIDE;trichlorochromium;chromicchloride1/;Chromium(Ⅲ)chloride;hromium trichloride;CHROMIUM TRICHLORIDE;Chromic(III) chloride
CBNumber:
CB7318939
Molecular Formula:
Cl3Cr
Formula Weight:
158.36
MOL File:
10025-73-7.mol

CHROMIUM (III) CHLORIDE Properties

Melting point:
1152 °C
Boiling point:
1300°C
Density 
2.87 g/mL at 25 °C(lit.)
storage temp. 
Store below +30°C.
form 
flakes
Specific Gravity
2.87
color 
Violet
Water Solubility 
Soluble in alcohol, water.
Sensitive 
Hygroscopic
Merck 
14,2222
Stability:
hygroscopic
CAS DataBase Reference
10025-73-7(CAS DataBase Reference)
FDA UNII
KB1PCR9DMW
EPA Substance Registry System
Chromium(III) chloride (10025-73-7)
SAFETY
  • Risk and Safety Statements
Symbol(GHS) 
GHS05,GHS07,GHS09,GHS08
Signal word  Danger
Hazard statements  H317-H318-H334-H302-H314-H411
Precautionary statements  P260h-P284-P405-P501a-P260-P280-P301+P312+P330-P303+P361+P353-P304+P340+P310-P305+P351+P338
Hazard Codes  Xn,T+
Risk Statements  22-26
Safety Statements  24/25-45-36/37-28
RIDADR  UN3260
WGK Germany  1
RTECS  GB5425000
TSCA  Yes
HazardClass  8
PackingGroup  III
HS Code  28273985
Toxicity MLD in frogs, mice, rabbits (mg/kg): 187, 801, 288 i.v. (Cavalli)
NFPA 704
3
3 0

CHROMIUM (III) CHLORIDE price More Price(13)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 200050 Chromium(III) chloride purified by sublimation, 99% 10025-73-7 100g $225 2019-12-02 Buy
Sigma-Aldrich 200050 Chromium(III) chloride purified by sublimation, 99% 10025-73-7 25g $380 2019-12-02 Buy
Alfa Aesar 012336 Chromium(III) chloride, anhydrous, 98% 10025-73-7 250g $221 2020-06-24 Buy
Alfa Aesar 012336 Chromium(III) chloride, anhydrous, 98% 10025-73-7 50g $64.3 2020-06-24 Buy
Strem Chemicals 24-0270 Chromium(III) chloride, anhydrous, 99% 10025-73-7 50g $204 2020-06-24 Buy

CHROMIUM (III) CHLORIDE Chemical Properties,Uses,Production

Physical Properties

Reddish violet crystals; hexagonal plates; density 2.87g/cm3; melts at 1,152°C; decomposes at 1,300°C; slightly soluble in water. The color of hexahydrates range from light-green to violet; all are hygroscopic; density 1.76 g/cm3; soluble in water and ethanol; insoluble in ether; dilute aqueous solutions are violet in color.

Uses

Chromium(III) chloride is used for chromium plating; as textile mordant; in tanning; as a waterproofing agent; and as catalyst for polymerization of olefins.

Preparation

Chromium(III) chloride hexahydrate may be prepared by treating chromium hydroxide with hydrochloric acid: /> Cr(OH)3 + 3HCl + 3H2O → CrCl3•6H2O The anhydrous chromium(III) chloride may be obtained by heating the hydrated salt CrCl3•6H2O with SOCl2 and subliming the product in a stream of chlorine at 600°C. Alternatively, the red-violet anhydrous chloride can be obtained by passing chlorine gas over a mixture of chromic oxide and carbon:
Cr2O3 + 3C +3Cl2 → 2CrCl3 + 3CO

Reactions

Chromium(III) chloride at elevated termperatures decomposes to chromium( II) chloride and chlorine:
2CrCl3→2CrCl2 + Cl2
Heating with excess chlorine produces vapors of chromium(IV) chloride, CrCl4. The tetrahedral tetrachloride is unstable, and occurs only in vapor phase.
When heated with hydrogen, it is reduced to chromium(II) chloride with the formation of hydrogen chloride:
2CrCl3 + H2→2CrCl2 + 2HCl
Chromium(III) chloride has very low solubility in pure water. However, it readily dissolves in the presence of Cr2+ ion. Reducing agents such as SnCl2 can “solubilize” CrCl3 in water. It forms adducts with many donor ligands. For example, with tetrahydrofuran (THF) in the presence of zinc, it forms the violet crystals of the complex CrCl3•3THF.

Chemical Properties

Chromic chloride is a highly corrosive, Blue or greenish to black crystalline solid.

Uses

Supplement(trace mineral).

Air & Water Reactions

The rate of solution for water is extremely slow, pH of 0.2 M. aqueous solution is 2.4.

Reactivity Profile

When heated to decomposition, CHROMIUM (III) CHLORIDE emits toxic fumes of chlorine containing compounds. Violent reaction with lithium, nitrogen. Incompatible with strong oxidizers. [EPA, 1998].

Hazard

A poison.

Health Hazard

CHROMIUM (III) CHLORIDE displays high dermal toxicity, and moderate oral toxicity.

Safety Profile

Poison by skin contact, inhalation, and intraperitoneal routes. Experimental teratogenic and reproductive effects. Human mutation data reported. Questionable carcinogen. Reacts violently with lithium under nitrogen atmosphere. When heated to decomposition it emits toxic fumes of Cl-.

Potential Exposure

Chromic chloride is used for production of solutions of basic chlorides and as a catalyst for polymerization of olefins and other organic reactions; in chromizing; in the manufacture of chromium metal and compounds; as a textile mordant; in tanning; in corrosion inhibitors; and as a waterproofing agent. A nutritional supplement.

Shipping

UN1759 Corrosive solids, n.o.s., Hazard class: 8; Labels: 8-Corrosive material, Technical Name Required. UN1760 Corrosive liquids, n.o.s., Hazard class: 8; Labels: 8-Corrosive material, Technical Name Required.

Purification Methods

Sublime the chloride in a stream of dry HCl. Alternatively, the impure chromic chloride (100g) is added to 1L of 10% aqueous K2Cr2O7 and several millilitres of conc HCl, and the mixture is brought to a gentle boil with constant stirring for 10minutes. (This removed a reducing impurity.) The solid is separated and washed by boiling with successive 1L lots of distilled water until the wash water no longer gives a test for chloride ion, then dry it at 110o [Poulsen & Garner J Am Chem Soc 81 2615 1959, Hein & Herzog in Handbook of Preparative Inorganic Chemistry (Ed. Brauer) Academic Press Vol II p 1338 1965].

Incompatibilities

Reacts with water and strong oxidizers. Contact with strong acids or acid fumes may produce highly toxic chloride fumes. May attack certain steels, causing pitting attack and stress corrosion

Waste Disposal

Precipitate as chromium hydroxide. Dewater the sludge and dispose of the compacted sludge in single-purpose dumps

CHROMIUM (III) CHLORIDE Preparation Products And Raw materials

Raw materials

Preparation Products


CHROMIUM (III) CHLORIDE Suppliers

Global( 114)Suppliers
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career henan chemical co
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View Lastest Price from CHROMIUM (III) CHLORIDE manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2018-09-27 China Best CHROMIUM (III) CHLORIDE 10025-73-7 CAS NO.10025-73-7
10025-73-7
US $1.00 / G 100G 99.9% 50000 tons Hebei Ruishun Trade Co.,Ltd
2019-07-10 CHROMIUM (III) CHLORIDE
10025-73-7
US $1.00 / KG 1KG 99% 25kg career henan chemical co

CHROMIUM (III) CHLORIDE Spectrum


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