Agent Name

Sodium dichromate

CAS Number

10588-01-9

Formula

Cr2-O7.2Na

Major Category

Metals

Synonyms

Bichromate de sodium [French]; Bichromate of soda; Celcure; Celcure Wood Presrvative; Chromic acid (H2Cr2O7), disodium salt; Chromium sodium oxide (Cr2Na2O7); Dichromic acid (H2Cr2O7), disodium salt; Disodium dichromate; Koppers Wolman Salts CCA; Natriumbichromaat [Dutch]; Natriumdichromaat [Dutch]; Natriumdichromat [German]; Oakite Composition No. 155; Osmose Hollow Heart Concentrate; Sodio (dicromato di) [Italian]; Sodium bichromate; Sodium dichromate (Na2(Cr2O7)); Sodium dichromate(VI); Sodium(dichromate de) [French]; Wolman Salts CCA-Type B; Wolman Salts CCA-Type C; Wood Cure A Wood Preservative; [ChemIDplus] Anhydrous sodium dichromate; [Ullmann] UN3086

Category

Chromium Compounds, Inorganic

Description

Red to orange hygroscopic solid; Soluble in water; [ICSC] Dark red aqueous solution; Deliquescent; [CAMEO]

Sources/Uses

Used in water treatment, dye and electric battery manufacturing, bleaching (fats, oils, sponges, and resins), refining petroleum, corrosion inhibitors (paints, metal coatings, and water systems), metal treatments, electroengraving of copper, defoliation of cotton and other plants and shrubs, fungicides, insecticides, miticides, wood preservation, glass colorants, dye mordants, and breweries (algaecide); [HSDB] Used in colorimetry (copper determination), as a complexing agent, and as an oxidation inhibitor in ethyl ether; [Hawley] Used to make vitamin K and waxes; [eChemPortal: ESIS: RAR] Compared with sodium dichromate dihydrate, it has the advantage of first absorbing 2 molecules of water instead of deliquescing immediately; [Ullmann]

Comments

A corrosive substance that can cause injury to the skin, eyes, and respiratory tract; Can be absorbed through skin; May cause skin sensitization and asthma after prolonged contact; May cause kidney and liver injury; May cause perforated nasal septum; Chromates are human carcinogens and reproductive toxins; [ICSC] A skin and eye irritant; Can cause asthma-like respiratory irritation; A powerful oxidizing agent; [HSDB] Corrosive to skin and eyes; May cause skin and respiratory sensitization after prolonged contact; [CHEMINFO] A corrosive substance that can cause injury to the skin, eyes, and respiratory tract including pulmonary edema; May cause skin and respiratory sensitization after prolonged contact; [MSDSonline] See "Chromium" and the linked diseases.

Exposure Assessment
TLV (ACGIH)

0.05 mg/m3, as Cr

PEL (OSHA)

0.005 mg/m3, as Cr(VI)

Lethal Concentration

LC50 (rat) = 124.42 mg/m3/4h

Explanatory Notes

The Guide in the Emergency Response Guidebook is for "Toxic solid, oxidizing, n.o.s."

Adverse Effects
Skin Sensitizer

Yes

Asthma

Yes

Toxic Pneumonitis

Yes

Nephrotoxin

Yes

Dermatotoxin

Skin Burns

IARC Carcinogen

Known Carcinogen

NTP Carcinogen

Human Carcinogen

ACGIH Carcinogen

Confirmed Human

Links to Other NLM Databases
Health Studies

Human Health Effects from Hazardous Substances Data Bank:

Toxicity Information

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Chemical Information

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Biomedical References

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Related Information in HazMap
Diseases

Occupational diseases associated with exposure to this agent:

Processes

Industrial Processes with risk of exposure: