1,2-NAPHTHOQUINONE-4-SULFONIC ACID POTASSIUM SALT
POTASSIUM 1,2-NAPHTHOQUINONE-4-SULFONIC ACID
CAS: 5908-27-0
Molecular Formula: C10H5KO5S
1,2-NAPHTHOQUINONE-4-SULFONIC ACID POTASSIUM SALT - Names and Identifiers
1,2-NAPHTHOQUINONE-4-SULFONIC ACID POTASSIUM SALT - Physico-chemical Properties
| Molecular Formula | C10H5KO5S |
| Molar Mass | 276.31 |
| Melting Point | 286-288 °C(lit.) |
| Physical and Chemical Properties | Chemical properties golden yellow needle crystal. The melting point of 90% products is 286-288 ℃. It is soluble in 50% alcohol, slightly soluble in water, and the solution is weakly alkaline. The sodium salt ([521-24-4]) is easily soluble in water and slightly soluble in 95% ethanol. |
| Use | Uses dye intermediates. The sodium salt is also used for the Colorimetric Determination of amines, amino acids and sulfonamide derivatives. |
1,2-NAPHTHOQUINONE-4-SULFONIC ACID POTASSIUM SALT - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37 - Irritating to eyes and respiratory system. |
| Safety Description | S22 - Do not breathe dust. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S37/39 - Wear suitable gloves and eye/face protection |
1,2-NAPHTHOQUINONE-4-SULFONIC ACID POTASSIUM SALT - Upstream Downstream Industry
| Raw Materials | Nitric acid Ammonium chloride 1-Amino-2-naphthol-4-sulfonic acid Nitrogen Tetroxide Ammonium sulfamate 1,2-NAPHTHOQUINONE |
1,2-NAPHTHOQUINONE-4-SULFONIC ACID POTASSIUM SALT - Production method
1-amino -2-naphthol -4-sulfonic acid is oxidized with dilute nitric acid. due to the release of nitrogen dioxide, the pasty product is orange-yellow. saturated ammonium chloride solution is added to generate 1,2-naphthoquinone -4-ammonium sulfonate. Dissolve it in bromine-containing water and decolorize it with activated carbon, and then add saturated potassium chloride to precipitate potassium salt crystallization, with a yield of 17-18%.
Last Update：2024-04-10 22:29:15
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Raw Materials for 1,2-NAPHTHOQUINONE-4-SULFONIC ACID POTASSIUM SALT
Nitric acid
Ammonium chloride
1-Amino-2-naphthol-4-sulfonic acid
Nitrogen Tetroxide
Ammonium sulfamate
1,2-NAPHTHOQUINONE
Ammonium chloride
1-Amino-2-naphthol-4-sulfonic acid
Nitrogen Tetroxide
Ammonium sulfamate
1,2-NAPHTHOQUINONE