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| | 4-Methylaminophenol sulfate Basic information |
| | 4-Methylaminophenol sulfate Chemical Properties |
| Melting point | 260 °C (dec.)(lit.) | | density | 1.577 | | refractive index | 1.6510 (estimate) | | storage temp. | −20°C | | solubility | H2O: 50 mg/mL, clear | | form | Powder | | color | white to faintly beige | | Water Solubility | 50 g/L (20 ºC) | | Sensitive | Air Sensitive | | Merck | 14,6017 | | BRN | 3919382 | | Stability: | Stability Combustible. Incompatible with strong oxidizing agents, acids, acid halides. | | CAS DataBase Reference | 55-55-0(CAS DataBase Reference) | | EPA Substance Registry System | p-Methylaminophenol sulfate (55-55-0) |
| Hazard Codes | Xn,N | | Risk Statements | 22-43-48/22-50/53 | | Safety Statements | 36/37-46-60-61 | | RIDADR | UN 3077 9/PG 3 | | WGK Germany | 3 | | RTECS | SL8650000 | | F | 8 | | Autoignition Temperature | 989 °F | | TSCA | Yes | | HazardClass | 6.1 | | PackingGroup | III | | HS Code | 29222900 |
| | 4-Methylaminophenol sulfate Usage And Synthesis |
| Description | Metol is contained in black-and-white film developers
and caused contact dermatitis in photographers. | | Chemical Properties | White crystalline powder | | Uses | Photographic developer; dyeing furs. | | Uses | 4-(Methylamino)phenol sulfate is a photographic developer used in black and white photography. It is also used as tone developers in developing agents. Further, it is used in oxidative hair dye formulations. | | Uses | Metol is a black-and-white photographic developer; dyeing furs; as pigment in hair dyes. | | Uses | 4-methylaminophenol sulfate is used as a photographic developer and
fur dye. | | Definition | ChEBI: The sulfate salt of 4-methylaminophenol. | | General Description | Off-white crystalline solid. Sensitive to light. | | Air & Water Reactions | Water soluble. | | Reactivity Profile | 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. | | Hazard | Eye and skin irritant. | | Fire Hazard | Flash point data for 4-Methylaminophenol sulfate are not available but 4-Methylaminophenol sulfate is probably combustible. | | Contact allergens | 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.] |
| | 4-Methylaminophenol sulfate Preparation Products And Raw materials |
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