- Croconic acid
Deep yellow powder.
Registry Numbers and Inventories.
Melting point, °C
Boiling point, °C
Vapor pressure, mmHg
0.0002 (25 C)
2.31 g/cm3 (25 C)
Solubility in water
597 g/L (25 C)
Partition coefficient, pKow
Heat of vaporization
Hazards and Protection.
Keep tightly closed. Store in a cool dry place.
Compatible chemical-resistant gloves. Chemical safety goggles. Protective clothing.
Use respirators and components tested and approved under appropriate government standards such as NIOSH (US) or CEN (EU). Respiratory protection is not required. Where protection from nuisance levels of dusts are desired, use type N95 (US) or type P1 (EN 143) dust masks.
Sweep up, place in a bag and hold for waste disposal. Avoid raising dust. Ventilate area and wash spill site after material pickup is complete.
Strong oxidizing agents.
Oxides of carbon.
Extinguish with water spray, carbon dioxide, dry chemical powder or appropriate foam. Wear self-contained breathing apparatus and protective clothing to prevent contact with skin and eyes.
Emits toxic fumes under fire conditions.
May be harmful if swallowed.
May be harmful if inhaled.
May irritate the skin. May be harmful if absorbed through the skin.
May cause eye irritation.
If swallowed, wash out mouth with water provided person is conscious. Call a physician.
If inhaled, remove to fresh air. If not breathing give artificial respiration. If breathing is difficult, give oxygen.
In case of contact, immediately wash skin with soap and copious amounts of water. Remove contaminated clothing and shoes. Call a physician.
In case of contact with eyes, flush with copious amounts of water for at least 15 minutes. Assure adequate flushing by separating the eyelids with fingers. Call a physician.