Substance profile
Bis(4-hydroxy-N-methylanilinium) sulphate
Bis(4-hydroxy-N-methylanilinium) sulphate: p-methylaminophenol sulfate is an off-white crystalline solid.
01 · Identification
What Bis(4-hydroxy-N-methylaniliniu… is
Bis(4-hydroxy-N-methylanilinium) sulphate: p-methylaminophenol sulfate is an off-white crystalline solid. Its molecular formula is C14H20N2O6S and its molecular weight is 344.39 g/mol. It melts at 255 °C, is soluble in water.
Under the GHS it carries the signal word Warning.
02 · GHS classification
Hazards and label elements
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
| Code | Hazard statement |
|---|---|
| H302 | Harmful if swallowed. |
| H373 | May cause damage to organs <or state all organs affected, if known> through prolonged or repeated exposure <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>. |
| H317 | May cause an allergic skin reaction. |
| H400 | Very toxic to aquatic life. |
| H410 | Very toxic to aquatic life with long lasting effects. |
Precautionary statements: P260, P261, P270, P272, P273, P280, P301, P312, P313, P314, P330, P333, P391, P501
03 · Physical and chemical properties
Bis(4-hydroxy-N-methylaniliniu… properties
Every value is shown with the conditions it was measured under and the source it came from. Where sources disagree, all values are listed rather than one being picked — the difference is usually a different form of the substance, not an error.
| Property | Value | Conditions | Source |
|---|---|---|---|
| Melting point | 255 °C (491 °F) | range, midpoint shown | CAMEO |
| Solubility | Soluble (>=10 mg/ml at 68 °F) (NTP, 1992) | at 20 °C | CAMEO |
| Solubility in water, g/100ml at 15 °C: 4.7 | at 15 °C | ICSC | |
| Autoignition temperature | 531 °C (987.8 °F) | ICSC |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
04 · Handling and storage
Storing and handling Bis(4-hydroxy-N-methylaniliniu…
Reactivity
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.
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check Bis(4-hydroxy-N-methylani… in the storage compatibility matrix →