- Dipotassium chromate
Lemon yellow crystals, odorless.
Limited application in enamels, finishing leather, rustproofing of metals, being replaced by sodium salt, reagent in analytical chemistry.
Registry Numbers and Inventories.
EC Index Number
Carcinogenic Category 2; Mutagenic Category 2; Irritant; Sensitising; Dangerous for the Environment
R 49 46 36/37/38 43 50/53
S 53 45 60 61
Tumorigen; Mutagen; Reproductive Effector
Swiss Giftliste 1
Japan ENCS (MITI)
Melting point, °C
Vapor pressure, mmHg
0.001 (940 C)
Vapor density (air=1)
Approximately zero (1)
Solubility in water
0.000105/K (30 C)
Heat of fusion
Hazards and Protection.
Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
Wash thoroughly after handling. Use only in a well ventilated area. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation.
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal. Avoid generating dusty conditions.
Stable under normal temperatures and pressures.
Strong oxidizing agents, hydrazine, sulfur, aluminum, and some plastics.
Oxides of potassium.
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Oxidizer. Greatly increases the burning rate of combustible materials. Extinguishing media: Substance is noncombustible; use agent most appropriate to extinguish surrounding fire.
May increase intensity of fire if in contact with combustible materials. Cool containers and spilled material with plenty of water.
Fire may produce irritating, corrosive and/or toxic gases.
TLV: 0.025 ppm; 0.16 mg/m3 (ACGIH 1991-1992). NIOSH REL: Ca 0.001 mg Cr(VI)/m3 See Appendix A See Appendix C NIOSH IDLH: Potential occupational carcinogen
G-A1, I-1, N-1, CP65
Chronic inhalation and ingestion may cause effects similar to those of acute inhalation and ingestion. Prolonged or repeated exposure may lead to asthma and perforation of the nasal septum. Repeated inhalation may cause chronic bronchitis. May cause liver and kidney damage. May cause cancer in humans.
May cause severe digestive tract irritation with abdominal pain, nausea, vomiting and diarrhea. Ingestion may cause violent gastroenteritis, circulatory collapse and kidney damage.
May cause ulceration and perforation of the nasal septum if inhaled in excessive quantities. May cause chemical bronchitis with coughing and difficulty in breathing. Causes severe respiratory tract irritation.
May cause skin sensitization, an allergic reaction, which becomes evident upon re-exposure to this material. May cause deep, penetrating ulcers of the skin. May cause dermatitis.
May cause eye irritation. Exposure to particulates or solution may cause conjunctivitis, ulceration, and corneal abnormalities.
If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately.
Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.
USCG CHRIS Code
2841 50 00
Std. Transport #