sodium 6,7-dihydroxynaphthalene-2-sulphonate
sodium 6,7-dihydroxynaphthalene-2-sulphonate
CAS: 135-53-5
Molecular Formula: C10H7NaO5S
sodium 6,7-dihydroxynaphthalene-2-sulphonate - Names and Identifiers
sodium 6,7-dihydroxynaphthalene-2-sulphonate - Physico-chemical Properties
| Molecular Formula | C10H7NaO5S |
| Molar Mass | 262.21 |
| Water Solubility | almost transparency |
| Appearance | White crystal |
| Color | White to Light yellow to Light orange |
| Storage Condition | Inert atmosphere,Room Temperature |
| MDL | MFCD00004074 |
| Physical and Chemical Properties | Character: white crystal. solubility slightly soluble in water and acid, soluble in sodium hydroxide. |
| Use | Used as a dye intermediate and a coupling agent for diazo-sensitive paper |
sodium 6,7-dihydroxynaphthalene-2-sulphonate - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. |
sodium 6,7-dihydroxynaphthalene-2-sulphonate - Upstream Downstream Industry
| Raw Materials | 3-hydroxy-2,7-naphthalenedisulfonic acid, disodium salt Sodium hydroxide Hydrochloric acid |
sodium 6,7-dihydroxynaphthalene-2-sulphonate - Nature
Open Data Verified Data
White Crystal, slightly soluble in water and acid, soluble in sodium hydroxide.
Last Update：2024-01-02 23:10:35
sodium 6,7-dihydroxynaphthalene-2-sulphonate - Preparation Method
Open Data Verified Data
with 2-naphthol -3,6-sulfonic acid double sodium salt (R salt) as raw material, by alkali fusion to generate R sodium salt, further with alkali reaction into dihydroxy R salt disodium, then acidified with sulfuric acid to obtain 2, 3-hydroxynaphthalene-6-sulfonic acid. After decolorization, salting out, filtering, dissolving and filtering with salt
Hair concentration, filtration, acid washing, filter dry, 2,3-hydroxynaphthalene-6-sulfonic acid sodium salt, and finally filtered to get the finished product.
Last Update：2022-01-01 10:56:18
sodium 6,7-dihydroxynaphthalene-2-sulphonate - Use
Open Data Verified Data
It is mainly used for the manufacture of printed papers, and is used as a coupling agent for the diazo sensitive paper. It is also used as a dye intermediate.
Last Update：2022-01-01 10:56:18
sodium 6,7-dihydroxynaphthalene-2-sulphonate - Safety
Open Data Verified Data
non-toxic. The iron drum is packed with plastic bags. 50kg per barrel. Store in a cool, dry, ventilated place. Protection against heat, moisture, fire and sun. According to the general provisions of the storage and transportation of chemicals.
Last Update：2022-01-01 10:56:19
sodium 6,7-dihydroxynaphthalene-2-sulphonate - Reference Information
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| Use | Used as a dye intermediate and a coupling agent for diazo photosensitive paper This product is a dye intermediate and is also used as a coupling agent for diazo photosensitive paper. |
| Production method | It is obtained by alkali melting and acidification of 2-naphthol -3, 6-disulfonate sodium salt (R salt). |
Last Update：2024-04-09 02:00:06
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Product Name: sodium 6,7-dihydroxynaphthalene-2-sulphonate Request for quotation
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View History
sodium 6,7-dihydroxynaphthalene-2-sulphonate
202339-44-4
四氢茚
thyroidextract
2-METHYLTHIO-2-IMIDAZOLINE HYDROIODIDE
N-[(2R)-3-[[3-Fluoro-4-(4-Morpholinyl)phenyl]aMino]-2-hydroxypropyl]acetaMide
76135-04-1
METHYL 4-(3,4-DICHLOROPHENYL)-2,4-DIOXOBUTANOATE
Carbamic acid, [(1S)-1-(hydroxymethyl)-2-phenyl-2-propenyl]-, 1,1-dimethylethyl ester
4,6-DICHLORO-2-PHENYLPYRIMIDIN-5-AMINE
202339-44-4
四氢茚
thyroidextract
2-METHYLTHIO-2-IMIDAZOLINE HYDROIODIDE
N-[(2R)-3-[[3-Fluoro-4-(4-Morpholinyl)phenyl]aMino]-2-hydroxypropyl]acetaMide
76135-04-1
METHYL 4-(3,4-DICHLOROPHENYL)-2,4-DIOXOBUTANOATE
Carbamic acid, [(1S)-1-(hydroxymethyl)-2-phenyl-2-propenyl]-, 1,1-dimethylethyl ester
4,6-DICHLORO-2-PHENYLPYRIMIDIN-5-AMINE
Raw Materials for sodium 6,7-dihydroxynaphthalene-2-sulphonate