3-Hydroxy-2-naphthoic acid
- CAS No.
- 92-70-6
- Chemical Name:
- 3-Hydroxy-2-naphthoic acid
- Synonyms
- BON ACID;BON;BONA;2-HYDROXY-3-NAPHTHOIC ACID;3-hydroxy-2-naphthoicaci;developer8;naphtholbon;developerbon;cideveloper20;Developer BON
- CBNumber:
- CB4334794
- Molecular Formula:
- C11H8O3
- Molecular Weight:
- 188.18
- MOL File:
- 92-70-6.mol
- MSDS File:
- SDS
- Modify Date:
- 2024/8/19 17:35:41
| Melting point | 218-221 °C(lit.) |
|---|---|
| Boiling point | 283.17°C (rough estimate) |
| Density | 1.43 g/cm3 (23℃) |
| refractive index | 1.7160 (estimate) |
| Flash point | >150°C |
| storage temp. | Sealed in dry,Room Temperature |
| solubility | 0.072g/l practically insoluble |
| form | Fine Crystalline Powder |
| pka | 3.02±0.30(Predicted) |
| color | Yellow to beige-brown |
| Water Solubility | PRACTICALLY INSOLUBLE |
| λmax | 395nm(H2O (pH 3.5))(lit.) |
| Merck | 14,4835 |
| BRN | 744100 |
| CAS DataBase Reference | 92-70-6(CAS DataBase Reference) |
| NIST Chemistry Reference | 2-Naphthalenecarboxylic acid, 3-hydroxy-(92-70-6) |
| EPA Substance Registry System | 3-Hydroxy-2-naphthoic acid (92-70-6) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |   GHS05,GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H302-H318-H335-H412 | |||||||||
| Precautionary statements | P261-P264-P273-P280-P301+P312-P305+P351+P338 | |||||||||
| Hazard Codes | Xn,Xi | |||||||||
| Risk Statements | 22-36-36/37/38 | |||||||||
| Safety Statements | 26-37/39 | |||||||||
| 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. | |||||||||
| NFPA 704 |
|
3-Hydroxy-2-naphthoic acid price More Price(5)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich(India) | H46007 | 3-Hydroxy-2-naphthoic acid 98% | 92-70-6 | 100G | ₹2478.93 | 2022-06-14 | Buy |
| TCI Chemicals (India) | H0281 | 3-Hydroxy-2-naphthoic Acid | 92-70-6 | 25G | ₹2300 | 2022-05-26 | Buy |
| TCI Chemicals (India) | H0281 | 3-Hydroxy-2-naphthoic Acid | 92-70-6 | 500G | ₹3500 | 2022-05-26 | Buy |
| ottokemi | H 1655 | 3-Hydroxy-2-naphthoic acid 98% | 92-70-6 | 250gm | ₹3105 | 2022-05-26 | Buy |
| ottokemi | H 1655 | 3-Hydroxy-2-naphthoic acid 98% | 92-70-6 | 1kg | ₹7299 | 2022-05-26 | Buy |
3-Hydroxy-2-naphthoic acid Chemical Properties,Uses,Production
Chemical Properties
yellow to beige-brown fine crystalline powder. 3 -Hydroxy-2-naphthoic acid [92-70-6], BON acid, C11H8O3, Mr 188.17, mp 222℃, forms pale yellow crystals from aqueous ethanol. Alkaline solutions have a green fluorescence. Aqueous ferric chloride produces a blue color, and warming with CHCl3– NaOH results in a green color. Oxidation with alkaline permanganate gives 2-carboxyphenylglyoxylic acid and then phthalic acid. Dry distillation produces dibenzoxanthone. Bromination gives the 4,7-dibromo derivative; nitration, the 4-nitro derivative; and sulfonation with oleum, the 5,7-disulfonic acid derivative.
Uses
3-Hydroxy-2-naphthoic acid is mainly used as intermediate for the production of dyes and pigments. Further uses are as intermediate for insecticides and pharmaceuticals (ECB, 2000).
Preparation
3 -Hydroxy-2-naphthoic acid is invariably by the Kolbe – Schmitt reaction of carbon dioxide with the dried sodium salt of 2-naphthol at 220 – 260℃. Many improvements in both process and equipment have been developed. The main problems are removal of the 50 % unreacted 2-naphthol and avoidance of a tarry byproduct. Yields of 80 % based on the amount of 2-naphthol consumed are possible despite the low conversion.
Hazard
Irritant.
Purification Methods
Crystallise it from water or acetic acid. The S-benzyisothiuronium salt has m 216-217o (from EtOH). It forms many metal complex salts. [Beilstein 10 H 333, 10 III 1084.]
3-Hydroxy-2-naphthoic acid Preparation Products And Raw materials
Raw materials
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chevron_rightPreparation Products
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|---|---|---|---|---|---|
| JIVICHEM SYNTHESIS PVT LTD | +91-7028392790 +91-7028392790 | Maharashtra, India | 337 | 58 | Inquiry |
| PERFECT CHEMICAL | +91-9820465461 +91-9820465461 | Mumbai, India | 391 | 58 | Inquiry |
| SNECOFRi Pvt Ltd | +91-9032850129 +91-9032850129 | Telangana, India | 404 | 58 | Inquiry |
| Santel Industries | +91-7940075559 +91-7926401417 | Gujarat, India | 98 | 58 | Inquiry |
| Jaffs Dyechem Private Limited | +91-9825035135 +91-7925392314 | Gujarat, India | 309 | 58 | Inquiry |
| TCI Chemicals (India) Pvt. Ltd. | 1800 425 7889 | New Delhi, India | 6778 | 58 | Inquiry |
| OCEAN TRADING CORPORATION | +91(22) 24921669 | New Delhi, India | 6211 | 58 | Inquiry |
| CHEMSWORTH | +91-261-2397244 | New Delhi, India | 6707 | 30 | Inquiry |
| Emco Dyestuff Pvt. Ltd. | +91 (22) 894 35 21 / 894 49 06 | New Delhi, India | 189 | 54 | Inquiry |
| CLEARSYNTH LABS LTD. | +91-22-45045900 | Hyderabad, India | 6351 | 58 | Inquiry |
| Supplier | Advantage |
|---|---|
| JIVICHEM SYNTHESIS PVT LTD | 58 |
| PERFECT CHEMICAL | 58 |
| SNECOFRi Pvt Ltd | 58 |
| Santel Industries | 58 |
| Jaffs Dyechem Private Limited | 58 |
| TCI Chemicals (India) Pvt. Ltd. | 58 |
| OCEAN TRADING CORPORATION | 58 |
| CHEMSWORTH | 30 |
| Emco Dyestuff Pvt. Ltd. | 54 |
| CLEARSYNTH LABS LTD. | 58 |