Citric acid
CAS 77-92-9 · EC 201-069-1 · C6H8O7
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: Warning
Harmful or irritant
- H335 May cause respiratory irritation.
- H319 Causes serious eye irritation.
Photographic uses
- acidifier/preservative
- salt print sensitiser additive