- 1-Amino-7-naphthol
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- $0.00 / 1KG
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2022-02-21
- CAS:118-46-7
- Min. Order: 1KG
- Purity: 98.9%
- Supply Ability: 100 tons
- 1-Amino-7-naphthol
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- $15.00 / 1KG
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2021-07-02
- CAS:118-46-7
- Min. Order: 1KG
- Purity: 99%+ HPLC
- Supply Ability: Monthly supply of 1 ton
- 1-Amino-7-naphthol
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- $0.00 / 1g
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2019-12-20
- CAS:118-46-7
- Min. Order: 1g
- Purity: 95%min
- Supply Ability: 20kg/month
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| | 1-Amino-7-naphthol Basic information |
| | 1-Amino-7-naphthol Chemical Properties |
| Melting point | 206-210 °C(lit.) | | Boiling point | 284.68°C (rough estimate) | | density | 1.1202 (rough estimate) | | refractive index | 1.6070 (estimate) | | solubility | soluble in Methanol | | pka | pK1: 4.20(+1) (25°C) | | form | Powder or Crystals | | color | Gray to brown | | Water Solubility | slightly soluble | | Sensitive | Light Sensitive | | CAS DataBase Reference | 118-46-7(CAS DataBase Reference) | | EPA Substance Registry System | 2-Naphthalenol, 8-amino- (118-46-7) |
| Hazard Codes | Xi | | Risk Statements | 36/37/38 | | Safety Statements | 26-36-37/39 | | WGK Germany | 2 | | RTECS | QL3331000 | | TSCA | Yes | | HS Code | 29222990 |
| | 1-Amino-7-naphthol Usage And Synthesis |
| Chemical Properties | grey to grey-brown granular powder | | Uses | Sulfonation gives 1-amino-7-hydroxynaphthalene-4-sulfonic acid. The N-acetyl derivative is an important coupling component for after-chrome and metal-complex dyes, e.g., C.I. Mordant Black 38 and C.I. Acid Black 60. | | Production Methods | The sodium salt of 1-aminonaphthalene-7-sulfonic acid is added to 80 % potassium hydroxide at 210℃, and the reaction is completed by heating for 6 h at 230℃. After dilution and careful acidification with hydrochloric acid, the acid solution is screened to remove impurities and neutralized to precipitate 159 in 80 % yield (mp 207℃). |
| | 1-Amino-7-naphthol Preparation Products And Raw materials |
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