Hydroquinone
CAS 123-31-9 · EC 204-617-8 · C6H6O2
Also known as 1,4-dihydroxybenzene, quinol
Handle chemistry safely
Wear gloves and eye protection, work with good ventilation, and read the supplier’s safety data sheet before use. Hazard information here is a summary, not a replacement for it. Dispose of all photographic chemistry correctly, in line with local laws and your local authority’s guidance. Never mix waste solutions, and check the supplier’s safety data sheet before disposing of anything.
Hazards
Official EU classification (harmonised under CLP Annex VI).
Signal word: Danger
Serious health hazard · Harmful or irritant · Corrosive · Hazardous to the environment
- H351 Suspected of causing cancer.
- H341 Suspected of causing genetic defects.
- H302 Harmful if swallowed.
- H318 Causes serious eye damage.
- H317 May cause an allergic skin reaction.
- H400 Very toxic to aquatic life.
Photographic uses
- developing agent (D-76, D-19, D-72, D-96, Ansco 130)
Used in: Kodak D-76, Kodak D-19, Kodak D-72 (Dektol-type), Kodak D-96