2-萘酚-3,6-二磺酸钠盐
3-hydroxy-2,7-naphthalenedisulfonic acid, disodium salt
CAS: 135-51-3
Molecular Formula: C10H9NaO7S2
2-萘酚-3,6-二磺酸钠盐 - Names and Identifiers
2-萘酚-3,6-二磺酸钠盐 - Physico-chemical Properties
| Molecular Formula | C10H9NaO7S2 |
| Molar Mass | 328.28 |
| Melting Point | 107℃ |
| Water Solubility | Soluble in water |
| Solubility | Solubility soluble in water, ethanol and ether. |
| Appearance | Ash-like solids |
| Color | White to Gray to Brown |
| BRN | 3643184 |
| Storage Condition | Inert atmosphere,Room Temperature |
| Stability | Stable. Incompatible with strong oxidizing agents. |
| MDL | MFCD00065915 |
| Physical and Chemical Properties | Colorless and lustrous filamentary needle-like crystals, easily deliquescent. solubility soluble in water, ethanol and ether. |
| Use | For the preparation of food pigments, azo dyes, photosensitive copy paper |
2-萘酚-3,6-二磺酸钠盐 - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/38 - Irritating to eyes 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. |
| WGK Germany | 3 |
| RTECS | QJ6477000 |
2-萘酚-3,6-二磺酸钠盐 - Upstream Downstream Industry
| Raw Materials | 2-Naphthol Sulfuric acid |
| Downstream Products | sodium 6,7-dihydroxynaphthalene-2-sulphonate |
2-萘酚-3,6-二磺酸钠盐 - Introduction
Colorless and shiny filament needle-like crystals, easy to deliquesce
Last Update：2022-10-16 17:13:34
2-萘酚-3,6-二磺酸钠盐 - Reference Information
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| properties | colorless and shiny filament needle-like crystals, easy to deliquesce. Soluble in water, ethanol and ether. |
| use | for the production of food coloring, azo dyes, photosensitive copy paper, etc.; used as a fluorescent indicator, also used to synthesize azo dyes; used for the production of food coloring, azo dyes, photosensitive copy paper. used to make food coloring, azo dyes, photosensitive copy paper, etc. used as fluorescent indicator, also used to synthesize azo dyes used to produce food coloring, azo dyes, photosensitive copy paper. |
| Production method | 2-naphthol sulfonated with sulfuric acid in the presence of sodium sulfate to obtain 2-naphthol -6,8-disulfonic acid (G acid) and 2-naphthol -3,6-disulfonic acid (R acid). Dilute the sulfonate and salt out with potassium chloride, so that G acid is precipitated first in the form of double potassium salt (see 26250), and the remaining waste acid liquid is salted out with sodium chloride to precipitate R acid into double sodium salt to obtain R salt. Raw material consumption quota: 35000kg/t for waste acid of g salt (1.23g/cm3) and 14000kg/t for salt (above 90%). |
Last Update：2024-04-10 22:29:15
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View History
2-萘酚-3,6-二磺酸钠盐
3-氨基-4-苯基噻吩-2-甲酸甲酯
KINASE II (281-302)
(4S,7R,8S,9S,13Z,16S)-4,8-Bis-{[tert-butyl(dimethyl)silyl]oxy}-5,5,7,9,13-pentamethyl-16-[(E)-1-methyl-2-(2-methyl-1,3-thiazol-4-yl)ethenyl]oxocyclohexadec-13-ene-2,6-dione
sarcocaulon mossamedense wood resinoid
BF 350, SE
2,6-二异丙基-4-溴苯胺
2-萘酚3.6二磺酸钠
Rubber Accelerator CuMDC
7-甲氧基-2-甲基咪唑并[1,2-a]吡啶-3-羧酸
3-氨基-4-苯基噻吩-2-甲酸甲酯
KINASE II (281-302)
(4S,7R,8S,9S,13Z,16S)-4,8-Bis-{[tert-butyl(dimethyl)silyl]oxy}-5,5,7,9,13-pentamethyl-16-[(E)-1-methyl-2-(2-methyl-1,3-thiazol-4-yl)ethenyl]oxocyclohexadec-13-ene-2,6-dione
sarcocaulon mossamedense wood resinoid
BF 350, SE
2,6-二异丙基-4-溴苯胺
2-萘酚3.6二磺酸钠
Rubber Accelerator CuMDC
7-甲氧基-2-甲基咪唑并[1,2-a]吡啶-3-羧酸
Raw Materials for 2-萘酚-3,6-二磺酸钠盐
Downstream Products for 2-萘酚-3,6-二磺酸钠盐