Calcium chromate Property

Density 

2.500

RTECS 

GB2750000

solubility 

slightly soluble in H2O; insoluble in ethanol, acetone

form 

Powder

color 

Yellow

Water Solubility 

Soluble in acid and water. Insoluble in alcohol.

Solubility Product Constant (Ksp)

pKsp: 3.15

Exposure limits

ACGIH: TWA 0.0002 mg/m3; STEL 0.0005 mg/m3 (Skin)
OSHA: Ceiling 0.1 mg/m3
NIOSH: IDLH 15 mg/m3; TWA 0.0002 mg/m3

CAS DataBase Reference

13765-19-0(CAS DataBase Reference)

EPA Substance Registry System

Calcium chromate (13765-19-0)

Safety

Hazard Codes 

T,N

Risk Statements 

22-45-50/53

Safety Statements 

45-53-60-61

RIDADR 

3288

TSCA 

Yes

HazardClass 

5.1

PackingGroup 

III

Hazardous Substances Data

13765-19-0(Hazardous Substances Data)

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H302Harmful if swallowed

H350May cause cancer

H410Very toxic to aquatic life with long lasting effects

Precautionary statements

P201Obtain special instructions before use.

P273Avoid release to the environment.

P308+P313IF exposed or concerned: Get medical advice/attention.

Calcium chromate Chemical Properties,Usage,Production

Description

Calcium chromate is a yellow crystalline solid,often used in solution. Odorless. It normally occurs as thedehydrate and loses water at 200℃. Molecularweight=192.1. Hazard Identification (based on NFPA-704M Rating System): Health 2, Flammability 0, Reactivity 0.Insoluble in water.

Chemical Properties

Calcium chromate is a yellow crystalline solid, often used in solution. Odorless. It normally occurs as the dehydrate and loses water @ 200C.

Uses

Calcium chromate is used as a corrosion inhibitor and pigment. It is also used as a depolarizer in batteries and a metal coating and primer. Further, it is used in electroplating, photochemical processing and industrial waste treatment.

Uses

As a pigment, corrosion inhibitor; manufacture of chromium; in oxidizing reactions; in battery depolarization.

General Description

CALCIUM CHROMATE is a yellow powder. CALCIUM CHROMATE is slightly soluble in water. The primary hazard is the threat to the environment. Immediate steps should be taken to prevent its spread to the environment.

Air & Water Reactions

Insoluble in water.

Reactivity Profile

CALCIUM CHROMATE is a strong oxidizer and reacts with acids and ethanol.

Hazard

Probable carcinogen.

Health Hazard

Inhalation causes irritation of nose and throat. Ingestion causes severe circulatory collapse and chronic nephritis. Contact with eyes causes irritation. Contact with skin may cause dermatitis and ulcers.

Safety Profile

Suspected human carcinogen with experimental carcinogenic, neoplastigenic, and tumorigenic data. Experimental reproductive effects. Mutation data reported. A powerful oxiduer. Mixture with boron burns violently if ignited. See also CHROMIUM COMPOUNDS and CALCIUM COMPOUNDS.

Potential Exposure

Calcium chromate is used as a pigment, corrosion inhibitor; in the manufacture of chromium; in oxidizing reactions; in battery depolarization.

First aid

If this chemical gets into the eyes, remove anycontact lenses at once and irrigate immediately for at least30 min, occasionally lifting upper and lower lids. Seekmedical attention immediately. If this chemical contactsthe skin, remove contaminated clothing and wash immediately with soap and water. Seek medical attention immediately. If this chemical has been inhaled, remove fromexposure, begin rescue breathing (using universal precautions, including resuscitation mask) if breathing hasstopped and CPR if heart action has stopped. Transferpromptly to a medical facility. When this chemical hasbeen swallowed, get medical attention. Give large quantities of water and induce vomiting. Do not make an unconscious person vomit.

storage

Color Code—Blue (carcinogen): Health Hazard:Store in a secure poison location. Calcium chromate mustbe stored to avoid contact with combustible, organic, orother easily oxidized materials (such as paper, wood, sulfur,aluminum, hydrazine and plastics) since violent reactionsoccur. A regulated, marked area should be established where this chemical is handled, used, or stored in compliance with OSHA Standard 1910.1045.

Shipping

UN3288 Toxic solids, inorganic, n.o.s., Hazard Class: 6.1; Labels: 6.1-Poisonous materials, Technical Name Required

Incompatibilities

A strong oxidizer. Incompatible with boron (violent reaction), ethanol, combustibles, organic, or other easily oxidized materials.

Waste Disposal

Reduce to trivalent chromium and precipitate as chromium(III) hydroxide. Compact the sludge and dispose in single purpose special waste dumps