Metol is contained in black-and-white film developers
and caused contact dermatitis in photographers.
화학적 성질
White crystalline powder
용도
4-methylaminophenol sulfate is used as a photographic developer and
fur dye.
정의
ChEBI: The sulfate salt of 4-methylaminophenol.
일반 설명
Off-white crystalline solid. Sensitive to light.
공기와 물의 반응
Water soluble.
반응 프로필
In aqueous solution behaves as an acid. Materials in this group are generally soluble in water. The resulting solutions contain moderate concentrations of hydrogen ions and have pH's of less than 7.0. They react as acids to neutralize bases. These neutralizations generate heat, but less or far less than is generated by neutralization of inorganic acids, inorganic oxoacids, and carboxylic acid. They usually do not react as either oxidizing agents or reducing agents but such behavior is not impossible. Many of these compounds catalyze organic reactions.
위험도
Eye and skin irritant.
화재위험
Flash point data for 4-Methylaminophenol sulfate are not available but 4-Methylaminophenol sulfate is probably combustible.
색상 색인 번호
Metol is contained in black and white film developers
and caused contact dermatitis in photographers.
Purification Methods
Crystallise this photographic developer from H2O (needles m 250-260o) (its solubility is 5% at 20o and 17% at 100o) or MeOH. It is used for determining Ag. [Palit et al. Indian J Chem, Sect B 28 64 1989.]
