| Agent Name |
Potassium dichromate |
|---|
| Alternative Name |
Potassium bichromate |
|---|
| CAS Number |
7778-50-9 |
|---|
| Formula |
Cr2-O7.2K |
|---|
| Major Category |
Metals |
|---|
| Synonyms |
Bichromate of potash; Chromium potassium oxide (K2Cr2O7); Dichromic acid dipotassium salt; Dipotassium bichromate; Dipotassium dichromate; Dipotassium dichromium heptaoxide; Iopezite; Kaliumdichromat [German]; Potassium bichromate; Potassium chromate (K2Cr2O7); Potassium dichromate; Potassium dichromate (K2(Cr2O7)); Potassium dichromate (K2Cr2O7); Potassium dichromate(VI); SRM 935a; [ChemIDplus] UN1479 |
|---|
| Category |
Metals, Inorganic Compounds |
|---|
| Description |
Bright orange-red crystals; [ChemIDplus] |
|---|
| Sources/Uses |
Used as a dry cell depolarizer and in dyeing, staining, leather tanning, bleaching, and oxidizing; Also used in medical practice as an external astringent, antiseptic, and caustic; [ChemIDplus] Used with tungsten and iron in pyrotechnic displays; [CAMEO] Used in painting, printing, wood staining, fabric waterproofing, and corrosion inhibiting; also used to make safety matches and to bleach palm oil, wax, and sponges; [Merck Index] Used as an intensifier in photographic development; Also used as a mordant in textile dyeing; [www.ci.tucson.az.us/arthazards/medium.html] |
|---|
| Comments |
Corrosive to skin; [CAMEO] A hexavalent chromium compound; [CHEMINFO] See "Chromium and compounds." |
|---|
| Exposure Assessment |
|---|
| BEI |
For chromium(VI), water-soluble fume: Total Cr in urine=10 ug/L(increase during shift) or 25 ug/L(end of shift at end of workweek) |
|---|
| Bioaccumulates |
Yes |
|---|
| TLV (ACGIH) |
0.05 mg/m3, as Cr |
|---|
| PEL (OSHA) |
0.5 mg/m3Ceiling (OSHA)=0.1 mg/m3, as CrO3 |
|---|
| Lethal Concentration |
LC50 (rat) = 99 mg/m3/4 hr; [CHEMINFO] |
|---|
| Flammability (NFPA) |
0: will not burn |
|---|
| Adverse Effects |
|---|
| Asthma |
Yes |
|---|
| Dermatotoxin |
Skin Burns |
|---|
| Skin Sensitizer |
Yes |
|---|
| Hepatotoxin |
Hepatotoxin, Secondary |
|---|
| Nephrotoxin |
Yes |
|---|
| Reproductive Toxin |
Yes |
|---|
| IARC Carcinogen |
Known Carcinogen |
|---|
| Links to Other NLM Databases |
|---|
| Health Studies |
Human Health Effects from Hazardous Substances Data Bank: POTASSIUM DICHROMATE
|
|---|
|
|
