Methyl p-aminophenol sulfate

Description

Colorless needles that are dissolved in an aqueous solution for use in the development of black and white photographs.

Chemical structure

Synonyms and Related Terms

Metol; p-methylaminophenol sulfate; Enol; Genol; Graphol; Photo-Rex; Verol

Risks

• Discolors in air.
• Combustible. Flash point = 256C (493F)
• Moderately toxic by ingestion, inhalation and skin contact.
• ThermoFisher: SDS

Physical and Chemical Properties

Soluble in water and ethanol. Insoluble in ether.

Composition	HOC6NHCH3-1/2H2SO4
CAS	55-55-0
Melting Point	250-260 C
Molecular Weight	mol. wt. = 344.39

Resources and Citations

• Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993

• Michael McCann, Artist Beware, Watson-Guptill Publications, New York City, 1979