- 4,4 -Dihydroxy-3,3 ,5,5 -tetramethylbiphenyl
Light yellow powder.
Registry Numbers and Inventories.
Japan ENCS (MITI)
Melting point, °C
Boiling point, °C
Vapor pressure, mmHg
1.6E-5 (25 C)
1.12 g/cm3 (20 C)
Solubility in water
24 mg/L (25 C)
Partition coefficient, pKow
Heat of vaporization
Hazards and Protection.
Keep container closed. Store in a cool dry place.
Compatible chemical-resistant gloves. Chemical safety goggles. Protective clothing.
Wear appropriate government approved respirator.
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.
Stable at normal temperatures and pressures.
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.
Harmful if swallowed, inhaled, or absorbed through skin. Causes eye and skin irritation. Limited evidence of a carcinogenic effect. Target organs: Liver, Kidneys. Possible mutagen. Irritating to eyes, respiratory system and skin.
Material is irritating to mucous membranes and upper respiratory tract.
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.