1,5-Dihydroxy naphthalene NEW
| Price | $100 | $1 |
| Package | 1KG | 1000KG |
| Min. Order: | 1KG |
| Supply Ability: | g-kg-tons, free sample is available |
| Update Time: | 2023-12-24 |
Product Details
| Product Name: 1,5-Dihydroxy naphthalene | CAS No.: 83-56-7 |
| Min. Order: 1KG | Purity: 99% |
| Supply Ability: g-kg-tons, free sample is available | Release date: 2023/12/24 |
| Lead time: In stock | Packaging: bottle/ drum/ bucket/ IBC, as request. |
| Delivery: By sea, by air, by express | Origin: Manufacturer |
1. Product information
| Product Name: | 1,5-Dihydroxy naphthalene |
| Synonyms: | Naphthalene-1,5-diol;1,8-NAPHTHALENEDIMETHANOL;1,5-DIHYDROXYNAPHTHALENE;1,5-NAPHTHALENEDIOL;1,5-Dihydroxynaphthalene 97%;1,5-Dihydroxy phthalene;1,5-Naphthalenediol for synthesis;1,5-DihydroxynaphthaL |
| CAS: | 83-56-7 |
| MF: | C10H8O2 |
| MW: | 160.17 |
| EINECS: | 201-487-4 |
| Product Categories: | Intermediates of Dyes and Pigments;Naphthalene derivatives;Indazoles;bc0001 |
| Mol File: | 83-56-7.mol |
 | |
| 1,5-Dihydroxy naphthalene Chemical Properties |
| Melting point | 259-261 °C (dec.) (lit.) |
| Boiling point | 246.06°C (rough estimate) |
| density | 1.0924 (rough estimate) |
| vapor pressure | 0-0Pa at 25℃ |
| refractive index | 1.5418 (estimate) |
| Fp | 252°C |
| storage temp. | Inert atmosphere,Room Temperature |
| solubility | 0.6g/l |
| pka | 9.28±0.40(Predicted) |
| form | Solid |
| color | Pale Beige to Very Dark Brown |
| PH | 6 (0.5g/l, H2O, 20℃) |
| Water Solubility | Soluble in water. |
| 1,5-Dihydroxy naphthalene Usage And Synthesis |
| Chemical Properties | Grey powder 1,5-Naphthalenediol [83-56-7], 1,5-dihydroxynaphthalene, Azurol, C10H8O2, Mr 160.16, forms colorless needles (from aqueous methyl cellosolve). The compound is sublimable, readily soluble in ether and acetone, but only sparingly soluble in water and hydrocarbons. It is oxidized to 5-hydroxy-1,4-naphthoquinone ( juglone) by CrO3. Amination gives 1,5-naphthalenediamine; coupling with diazotized anilines occurs in the 2- or 4-position. |
| Uses | 1,5-Dihydroxynaphthalene is an intermediate of synthetic mordant azo dyes. It is an intermediate used in organic synthesis, pharmaceuticals, dyestuff fields and photograph industry. It is used as a coupling component in azo dyes as exemplified in the metallizable (Cr) wool dye, C.I. Mordant Black 9. |
| Production Methods | The sodium salt of naphthalene-1,5-disulfonic acid is added gradually to excess 75 % sodium hydroxide. The mixture is heated under pressure to 276℃ over the course of 7 h and the reaction is completed by heating for a further 5 h at this temperature. After precipitation with sulfuric acid, the product is isolated in 90 % yield. |
2. Packaging
For powders: normal is 25kgs/Drum or bag, or larger/smaller package as request.
For liquids: normal 25kgs/drum, 180-300kgs/bucket, or IBC, determined by the nature of the product.
Or smaller package 1kg/bottle, 10kgs/bottle as request.
3. Shipping
4. Contact information
For more details, pls contact us freely.
Email address : elin@fdachem.com
Mob: 86 13613820652
WhatsApp/Skype/Wechat/LINE: 86 13613820652
Company Profile Introduction
Henan Fengda Chemical Co., Ltd. is located in the High-tech Development Zone of Henan Province. Specializing in the production and sales of various fine chemical products required for industrial production, including chemical raw materials, organic raw materials, petrochemicals, chemical reagents, solvents, catalysts, and additives, etc.
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- Since: 2023-02-10
- Address: Room 01, 2288 E05, Building 14, East Henan University, Science and Technology Park, 279 Xisanhuan Ro
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