3-Hydroxy-2-Naphthslene Carboxylic acid
3-Hydroxy-2-naphthoic acid
CAS: 92-70-6
Molecular Formula: C11H8O3
3-Hydroxy-2-Naphthslene Carboxylic acid - Names and Identifiers
3-Hydroxy-2-Naphthslene Carboxylic acid - Physico-chemical Properties
| Molecular Formula | C11H8O3 |
| Molar Mass | 188.18 |
| Density | 1.43 g/cm3 (23℃) |
| Melting Point | 218-221°C(lit.) |
| Boling Point | 283.17°C (rough estimate) |
| Flash Point | >150°C |
| Water Solubility | PRACTICALLY INSOLUBLE |
| Solubility | 0.072g/l practically insoluble |
| Vapor Presure | 4.68E-06mmHg at 25°C |
| Appearance | Yellow crystal |
| Color | Yellow to beige-brown |
| Maximum wavelength(λmax) | ['395nm(H2O (pH 3.5))(lit.)'] |
| Merck | 14,4835 |
| BRN | 744100 |
| pKa | 3.02±0.30(Predicted) |
| Storage Condition | Sealed in dry,Room Temperature |
| Refractive Index | 1.7160 (estimate) |
| MDL | MFCD00004103 |
| Physical and Chemical Properties | Yellow rhombic lamellar crystals. |
| Use | It is mainly used for the manufacture of phenol as and other intermediates of various phenols, and can also be used as intermediates for pharmaceuticals and organic pigments |
3-Hydroxy-2-Naphthslene Carboxylic acid - Risk and Safety
| Risk Codes | R22 - Harmful if swallowed R36 - Irritating to the eyes R36/37/38 - 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. S37/39 - Wear suitable gloves and eye/face protection |
| WGK Germany | 1 |
| RTECS | QL1755000 |
| TSCA | Yes |
| HS Code | 29182910 |
| Toxicity | The acute oral LD50 of 3-Hydroxy-2-naphthoic acid in rats was 823-1040 mg/kg bw. |
3-Hydroxy-2-Naphthslene Carboxylic acid - Introduction
Easily soluble in ethanol, ether, soluble in benzene and alkali solution, actually insoluble in water.
Last Update：2022-10-16 17:30:09
3-Hydroxy-2-Naphthslene Carboxylic acid - Reference Information
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Application | is mainly used for the manufacture of phenol as and other intermediates of various phenols, also can be used as pharmaceutical and organic pigment intermediates is mainly used for the manufacture of phenol as and other various phenol intermediates, but also the production of pharmaceutical and organic pigment intermediates. This product is mainly used for the manufacture of phenol as and other various phenol intermediates, can also be used in medicine, high-grade organic pigment intermediates. |
| production method | 2-naphthol reacts with caustic soda to form 2-naphthol sodium salt, which is dewatered by distillation under reduced pressure, anhydrous 2-naphthol sodium salt is obtained, and carboxylation reaction is carried out with carbon dioxide to generate 2-naphthol and 2,3-acid disodium salt, the resin is decomposed to remove 2-naphthol, and then neutralized with sulfuric acid, acidification yields 3-hydroxy-2-naphthoic acid. After Suction filtration, centrifugal separation and drying, the finished product is obtained. Raw material consumption quota: 2-naphthol 1047kg/t, liquid alkali (30%)1950kg/t, sulfuric acid (92.5%)845kg/t, sodium bicarbonate 25kg/t, carbon dioxide 692kg/t. |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-09 02:00:12
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View History
3-Hydroxy-2-Naphthslene Carboxylic acid
N-[6-[[3,4,6-三-O-乙酰基-2-(乙酰氨基)-2-脱氧-Β-D-吡喃半乳糖基]氧基]丙基]氨基甲酸苄酯
TERT-BUTYL (2R)-2-ETHYL-4-OXOPIPERIDINE-1-CARBOXYLATE
OTAVA-BB 1136112
Hawthorne leaf P.E
bicyclo[2.2.2]octan-1-amine hydrochloride
4-[(E)2-[4-(DIMETHYLAMINO)PHENYL]VINYL]-1-METHYLPYRIDINIUM IODIDE
3-AMINOCYCLOPENTANONE
3-叔丁基咪唑烷-2,4-二酮
STEARDIMONIUM HYDROXYPROPYL HYDROLYZED KERATIN
N-[6-[[3,4,6-三-O-乙酰基-2-(乙酰氨基)-2-脱氧-Β-D-吡喃半乳糖基]氧基]丙基]氨基甲酸苄酯
TERT-BUTYL (2R)-2-ETHYL-4-OXOPIPERIDINE-1-CARBOXYLATE
OTAVA-BB 1136112
Hawthorne leaf P.E
bicyclo[2.2.2]octan-1-amine hydrochloride
4-[(E)2-[4-(DIMETHYLAMINO)PHENYL]VINYL]-1-METHYLPYRIDINIUM IODIDE
3-AMINOCYCLOPENTANONE
3-叔丁基咪唑烷-2,4-二酮
STEARDIMONIUM HYDROXYPROPYL HYDROLYZED KERATIN