2,4-Diaminophenol dihydrochloride
Synonym(s):‘Amidol’;4-Hydroxy-1,3-phenylenediammonium dichloride;Amidol, 2,4-Diaminophenol dihydrochloride, Phenol-2,4-diammonium dichloride, 1-Hydroxybenzene-2,4-diammonium dichloride
- CAS NO.:137-09-7
- Empirical Formula: C6H10Cl2N2O
- Molecular Weight: 197.06
- MDL number: MFCD00012979
- EINECS: 205-279-4
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-07-11 19:21:31
What is 2,4-Diaminophenol dihydrochloride?
Chemical properties
Grey white powder
The Uses of 2,4-Diaminophenol dihydrochloride
2,4-Diaminophenol dihydrochloride (Amidol) is used in the dye manufacturing industries and as a color accelerator in photographic developers. It is also employed as a pharmaceutical intermediate.
The Uses of 2,4-Diaminophenol dihydrochloride
A trade name for diamidophenol, a developing agent for silver bromide gelatin emulsions that was introduced by Dr. Anderson in 1892. Amidol made negatives grayish black, with very little fog. It was favored over other alkaline developers because it could facilitate faster exposures.
The Uses of 2,4-Diaminophenol dihydrochloride
2,4-Diaminophenol dihydrochloride (Amidol) was used in the dye manufacturing industries and as a color accelerator in photographic developers.
General Description
Grayish-white crystals.
Air & Water Reactions
Water soluble.
Reactivity Profile
Sensitive to heat and light. Incompatible with acids.
Fire Hazard
Flash point data for 2,4-Diaminophenol dihydrochloride are not available. 2,4-Diaminophenol dihydrochloride is probably combustible.
Properties of 2,4-Diaminophenol dihydrochloride
Melting point: | 222 °C (dec.)(lit.) |
Density | 1.3457 (rough estimate) |
refractive index | 1.5680 (estimate) |
storage temp. | Store below +30°C. |
solubility | 275g/l |
form | Crystalline Powder |
color | Beige to gray-green |
PH | 1-2 (50g/l, H2O, 20℃) |
Water Solubility | 27.5 g/100 mL (15 ºC) |
Merck | 14,2983 |
BRN | 3913728 |
Stability: | Stable. Incompatible with strong oxidizing agents, acids. Heat and light sensitive. |
CAS DataBase Reference | 137-09-7(CAS DataBase Reference) |
EPA Substance Registry System | 2,4-Diaminophenol dihydrochloride (137-09-7) |
Safety information for 2,4-Diaminophenol dihydrochloride
Signal word | Danger |
Pictogram(s) |
Skull and Crossbones Acute Toxicity GHS06 |
GHS Hazard Statements |
H301:Acute toxicity,oral H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P270:Do not eat, drink or smoke when using this product. P301+P310:IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician. P302+P352:IF ON SKIN: wash with plenty of soap and water. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for 2,4-Diaminophenol dihydrochloride
2,4-Diaminophenol dihydrochloride manufacturer
Vasant Chemicals Pvt Ltd
Anand Agencies
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