Supplier Related Products Identification Chemical Properties Hazard Information Safety Data Raw materials And Preparation Products Questions And Answer
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10101-53-8

Supplier Related Products Identification Chemical Properties Hazard Information Safety Data Raw materials And Preparation Products Questions And Answer

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Identification

Name
Chromic sulfate
CAS
10101-53-8
Synonyms
BASIC CHROME SULFATE
BCS
CHROMAL(TM)
CHROME SULFATE
CHROMIC SULFATE
CHROMIC SULPHATE
CHROMIUM(+3)SULFATE
CHROMIUM(III) SULFATE
CHROMIUM SULFATE
CHROMIUM SULPHATE
baychroma
baychromf
c.i.77305
chromicsulfate(cr2(so4)3)
chromitanb
chromitanms
chromitanna
chromium(iii)sulfate(2:3)
chromiumsulfate(2:3)
chromiumsulfate(cr2(so4)3)
EINECS(EC#)
233-253-2
Molecular Formula
Cr2O12S3
MDL Number
MFCD00016039
Molecular Weight
392.18
MOL File
10101-53-8.mol

Chemical Properties

Appearance
Chromic sulfate is a peach colored solid or red to violet, odorless powder.
Appearance
green or violet crystals
density 
3.012
form 
Crystalline
Stability:
Stable.
Water Solubility 
insoluble H2O, acids [MER06]
Uses
Chrome plating, chromium alloys, mordant, catalyst, green paints and varnishes, green ink, ceramics (glazes). The basic form (reduction of sodium dichromate) is used in tanning.
CAS DataBase Reference
10101-53-8(CAS DataBase Reference)
EPA Substance Registry System
10101-53-8(EPA Substance)

Hazard Information

Chemical Properties
Also known as chromic sulfate,Cr2(S04)3, is a violet or red powder that is insoluble in water and acids.The basic form (reduction of sodium dichromate) is used in tanning. Other uses are chrome plating,chromium alloys,mordant,catalyst,green paints and varnishes,green ink,and ceramic glazes.
Chemical Properties
Chromic sulfate is a peach colored solid or red to violet, odorless powder.
Definition
ChEBI: A compound of chromium and sulfate in which the ratio of chromium (in the +3 oxidation state) to sulfate is 2:3
General Description
Dark green to violet crystalline material. Used in paints and inks, ceramics, and in textile dyeing. I CHROMIC SULFATE(10101-53-8) is noncombustible. The primary hazard of this material is the potential for environmental damage if released. Immediate steps should be taken to limit its spread to the environment.
Reactivity Profile
CHROMIC SULFATE has weak oxidizing or reducing powers. Redox reactions can however still occur. The majority of compounds in this class are slightly soluble or insoluble in water. If soluble in water, then the solutions are usually neither strongly acidic nor strongly basic. These compounds are not water-reactive.
Air & Water Reactions
Water soluble.
Health Hazard
INHALATION: Corrosive action on mucous membranes. SKIN: May elicit an allergic reaction. Corrosive action on skin. Lesions confined to exposed parts.
Potential Exposure
This compound is used in green paints, inks, dyes, and ceramics
Fire Hazard
Special Hazards of Combustion Products: Decomposes to chromic acid when heated.
First aid
If this chemical gets into the eyes, remove any contact lenses at once and irrigate immediately for at least 15 minutes, occasionally lifting upper and lower lids. Seek medical attention immediately. If this chemical contacts the skin, remove contaminated clothing and wash immediately with soap and water. Seek medical attention immediately. If this chemical has been inhaled, remove from exposure, begin rescue breathing (using universal precautions, including resuscitation mask) if breathing has stopped and CPR if heart action has stopped. Transfer promptly to a Medical facility. When this chemical has been swallowed, get medical attention. Give large quantities of water and induce vomiting. Do not make an unconscious person vomit.
Shipping
UN3077 Environmentally hazardous substances, solid, n.o.s., Hazard class: 9; Labels: 9-Miscellaneous hazardous material, Technical Name Required
Incompatibilities
This chemical has weak oxidizing and reducing properties. Keep away from strong oxidizers Chromic Sulfate 837 (perchlorates, peroxides, permanganates, chlorates, nitrates, chlorine, bromine, and fluorine). When heated this chemical decomposes to chromic acid.
Waste Disposal
Return to supplier where possible. Where this is not practical, the material should be encapsulated and buried in a specially designated chemical landfill.

Safety Data

RIDADR 
UN 9100
Hazardous Substances Data
10101-53-8(Hazardous Substances Data)
Toxicity
MLD in frogs, mice, rabbits (mg/kg): 37, 246.8, 215 i.v. (Cavalli)

Raw materials And Preparation Products

Raw materials
Sulfuric acid -->SODIUM DICHROMATE
Preparation Products
Chromium oxide-->Reactive Red Brown K-B3r-->CHROMIUM (III) HYDROXIDE N-HYDRATE-->Chromic chloride hexahydrate-->Reactive Black 8

Questions And Answer

Physical Properties
Reddish-brown hexagonal crystal; the pentadecahydrate is a dark green amorphous substance while the octadecahydrate is a violet cubic crystal; the densities are 3.10 g/cm3 (the anhydrous salt), 1.87 g/cm3 (pentadecahydrate), 1.709/cm3 (octadecahydrate); the anhydrous sulfate is insoluble in water and acids; the hydrate salts are soluble in water; the pentadecahydrate is insoluble in alcohol, but the octadecahydrate dissolves in alcohol.
Uses
Chromium(III) sulfate is used as the electrolyte for obtaining pure chromium metal. It is used for chrome plating of other metals for protective and decorative purposes. Other important applications of this compound are as a mordant in the textile industry; in tanning leather; to dissolve gelatin; to impart green color to paints, varnishes, inks, and ceramic glazes; and as a catalyst.
Preparation
Chromium(III) sulfate is prepared by treating chromium(III) hydroxide with sulfuric acid followed by crystallization:
2Cr(OH)3 + 3H2SO4 → Cr2(SO4)3 + 6H2O
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