| Identification | More | [Name]
4-Methylaminophenol sulfate | [CAS]
55-55-0 | [Synonyms]
4-METHYLAMINO-PHENOL HEMISULFATE
4-(METHYLAMINO)PHENOL HEMISULFATE SALT
4-(METHYLAMINO)PHENOL SULFATE
4-(METHYLAMINO)PHENOL SULPHATE
ARMOL
BIS-(N-METHYL-4-HYDROXYANILINIUM) SULFATE
ECOL(R)
ELON
GENOL
METHOL
METOL
METOL(TM)
PHOTO-REX(R)
P-HYDROXYMETHYLANILINE SULFATE
PICTOL(TM)
PLANETOL
P-METHYLAMINOPHENOL SULFATE
P-METHYLAMINOPHENOL SULPHATE
4-(methylamino)-phenosulfate(2:1)(salt)
Bis(p-methylaminophenol)sulfate | [EINECS(EC#)]
200-237-1 | [Molecular Formula]
C7H11NO5S | [MDL Number]
MFCD00013140 | [Molecular Weight]
221.23 | [MOL File]
55-55-0.mol |
| Chemical Properties | Back Directory | [Appearance]
White crystalline powder | [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
| [Stability:]
Stability Combustible. Incompatible with strong oxidizing agents, acids, acid halides. | [Water Solubility ]
50 g/L (20 ºC) | [Sensitive ]
Air Sensitive | [Merck ]
14,6017 | [BRN ]
3919382 | [Contact allergens]
Metol is contained in black and white film developers
and caused contact dermatitis in photographers. | [CAS DataBase Reference]
55-55-0(CAS DataBase Reference) | [EPA Substance Registry System]
55-55-0(EPA Substance) |
| Hazard Information | Back Directory | [Chemical Properties]
White crystalline powder | [Definition]
ChEBI: The sulfate salt of 4-methylaminophenol. | [Uses]
Photographic developer; dyeing furs. | [General Description]
Off-white crystalline solid. Sensitive to light. | [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. | [Air & Water Reactions]
Water soluble. | [Hazard]
Eye and skin irritant. | [Fire Hazard]
Flash point data for this compound are not available but P-METHYLAMINOPHENOL SULFATE is probably combustible. | [Description]
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.] |
| Safety Data | Back Directory | [Hazard Codes ]
Xn,N | [Risk Statements ]
R22:Harmful if swallowed.
R43:May cause sensitization by skin contact.
R48/22:Harmful: danger of serious damage to health by prolonged exposure if swallowed .
R50/53:Very Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment . | [Safety Statements ]
S36/37:Wear suitable protective clothing and gloves .
S46:If swallowed, seek medical advice immediately and show this container or label .
S60:This material and/or its container must be disposed of as hazardous waste .
S61:Avoid release to the environment. Refer to special instructions safety data sheet . | [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 ]
29222990 | [Hazardous Substances Data]
55-55-0(Hazardous Substances Data) |
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