3-Hydroxy-2-naphthoic acid
![3-Hydroxy-2-naphthoic acid Structure](CAS/GIF/92-70-6.gif)
- 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
1of2
chevron_rightPreparation Products
1of3
chevron_rightSupplier | Tel | Country | ProdList | Advantage | Inquiry |
---|---|---|---|---|---|
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 |