Physicochemical properties

Color and odor state: white crystalline powder, with a slight phenol smell, easy to oxidize to pink to tan in the air for a long time

Toxicity: Moderately toxic

Flammability: combustible

Density: 1.32 g/cm³ (solid).

Volatility: Low volatility

Corrosive: Slightly corrosive

Boiling point: 287°C

Stability: stable at room temperature

Melting point: 170°C (hydroquinone).

Acidity-alkaline: weakly acidic

Moisture absorption: moisture absorption

Spontaneous ignition point: 550°C

Viscosity: Aqueous solutions have a slight viscosity

Deliquescence: Micro-deliquescence

Flash point: 165°C

Solubility: easily soluble in water, ethanol, ether, acetone, slightly soluble in benzene, chloroform, insoluble in petroleum ether

Various numbers

CAS: 123-31-9

EINECS：204-617-8

Uses

Hydroquinone: used as a photographic developer, antioxidant, polymerization inhibitor, rubber anti-aging agent, preparation of dyes, medicine

Hazard category

6.1 Class of poisons

Fire extinguishing agents

Mist water, foam, dry powder, carbon dioxide, sand

Emergency treatment

Skin contact: Immediately remove contaminated clothing, rinse with plenty of running water for at least 15 minutes, and seek medical attention; Eye contact: lift the eyelids immediately, rinse thoroughly with plenty of running water or saline for at least 15 minutes, and seek medical attention; Inhalation: Quickly leave the scene to a fresh place in the air, keep the airway open, and seek medical attention; Food: Drink enough warm water, induce vomiting, seek medical attention, and avoid using gastric tubes to induce vomiting

Packaging, storage, transportation

Packed in cardboard buckets, 25kg cardboard drums/polypropylene woven bags; The packaging should be sealed, lined with plastic bags, to prevent oxidation and moisture absorption and store in a cool, ventilated warehouse, the storage temperature should not exceed 30 °C, away from fire and heat sources, and stored away from light; keep the container sealed, store it separately from oxidants, acids, alkalis, and edible chemicals, and avoid mixed storage; Equipped with corresponding types and quantities of fire-fighting equipment, and the storage area is equipped with appropriate materials to contain leaks; sealed and stored to prevent oxidation and deterioration in contact with air; Transported according to the requirements of dangerous goods.