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2-Naphthol disodium sulfonate ( R salt

3-hydroxy-2,7-naphthalenedisulfonic acid, disodium salt

CAS: 135-51-3

Molecular Formula: C10H9NaO7S2

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2-Naphthol disodium sulfonate ( R salt - Names and Identifiers

Name 3-hydroxy-2,7-naphthalenedisulfonic acid, disodium salt
Synonyms R Salt
R acid
2-naphthol-3,6-disulfonic
Sodium 2-naphthol-3,6-disulfonate
Disodium 2-naphthol-3,6-disulfonate
2-Naphthol-3,6-Disodium Disulfonate
DISODIUM 2-NAPHTHOL-3,6-DISULFONATE
3-hydroxynaphthalene-2,7-disulfonate
2-Naphthol disodium sulfonate ( R salt
2-NAPHTHOL-3,6-DISULFONIC ACID DISODIUM SALT
2-Naphthol-3,6-disulfonic acid disodium salt
DISODIUM 3-HYDROXY-2,7-NAPHTHALENEDISULFONATE
disodium 3-hydroxynaphthalene-2,7-disulfonate
BETA-NAPHTHOL-3,6-DISULFONIC ACID DISODIUM SALT
2,7-Naphthalenedisulfonicacid,3-hydroxy-,disodiumsalt
3-HYDROXYNAPHTHALENE-2,7-DISULFONIC ACID DISODIUM SALT
3-Hydroxy-2,7-naphthalenedisulfonic acid disodium salt
3-HYDROXY-2,7-NAPHTHALENEDISULFONIC ACID DISODIUM SALT
3-hydroxy-2,7-naphthalenedisulfonic acid, disodium salt
CAS 135-51-3
EINECS 205-196-3
InChI InChI=1/C10H8O7S2/c11-9-4-6-1-2-8(18(12,13)14)3-7(6)5-10(9)19(15,16)17/h1-5,11H,(H,12,13,14)(H,15,16,17)/p-2
InChIKey VNEBWJSWMVTSHK-UHFFFAOYSA-L

2-Naphthol disodium sulfonate ( R salt - Physico-chemical Properties

Molecular FormulaC10H9NaO7S2
Molar Mass328.28
Melting Point107℃
Water SolubilitySoluble in water
Solubility Solubility soluble in water, ethanol and ether.
AppearanceAsh-like solids
ColorWhite to Gray to Brown
BRN3643184
Storage ConditionInert atmosphere,Room Temperature
StabilityStable. Incompatible with strong oxidizing agents.
MDLMFCD00065915
Physical and Chemical PropertiesColorless and lustrous filamentary needle-like crystals, easily deliquescent.
solubility soluble in water, ethanol and ether.
UseFor the preparation of food pigments, azo dyes, photosensitive copy paper

2-Naphthol disodium sulfonate ( R salt - Risk and Safety

Hazard SymbolsXi - Irritant
Irritant
Risk Codes36/38 - Irritating to eyes and skin.
Safety DescriptionS26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36 - Wear suitable protective clothing.
WGK Germany3
RTECSQJ6477000

2-Naphthol disodium sulfonate ( R salt - Upstream Downstream Industry

Raw Materials2-Naphthol
Sulfuric acid
Downstream Productssodium 6,7-dihydroxynaphthalene-2-sulphonate

2-Naphthol disodium sulfonate ( R salt - Introduction

Colorless and shiny filament needle-like crystals, easy to deliquesce
Last Update：2022-10-16 17:13:34

2-Naphthol disodium sulfonate ( R salt - 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
2-Naphthol disodium sulfonate ( R salt
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JIANGSU BSECHEM CHEMICAL TECHNOLOGY CO., LTD.
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CAS: 135-51-3
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JIANGSU BSECHEM CHEMICAL TECHNOLOGY CO., LTD.
Spot supply
Product Name: 3-hydroxy-2,7-naphthalenedisulfonic acid, disodium salt Request for quotation
CAS: 135-51-3
Tel: +86-17551318830
Email: r@reformchem.com
Mobile: +86-17551318830
QQ: 3787852685 Click to send a QQ messageSend QQ message
Nantong Reform Petro-Chemical CO., LTD.
Spot supply
Product Name: 3-hydroxy-2,7-naphthalenedisulfonic acid, disodium salt Request for quotation
CAS: 135-51-3
Tel: +86-17551318830
Email: r@reformchem.com­
Mobile: +86-17551318830
QQ: 3785839865 Click to send a QQ messageSend QQ message
Guangzhou Yuanda New Material Co.,Ltd
Multiple Specifications
Product Name: Disodium 2-naphthol-3,6-disulfonate Request for quotation
CAS: 135-51-3
Tel: +86 19849939632
Email: 2470479589@qq.com
Mobile: +86 19849939632
QQ: 2470479589 Click to send a QQ message
Wechat: +86 19849939632
Jiangsu Pules Biotechnology Co.,Ltd.
Spot supply
Product Name: 3-hydroxy-2,7-naphthalenedisulfonic acid, disodium salt Request for quotation
CAS: 135-51-3
Tel: 17505222756
Email: pules.cn@gmail.com
Mobile: +86-17551318830
Wechat: 17505222756
Hubei Longxin Chemical Industry Co., Ltd
Spot supply
Product Name: Disodium 2-naphthol-3,6-disulfonate Request for quotation
CAS: 135-51-3
Tel: 15335994747
Email: 3521670276@qq.com
Mobile: 15335994747
QQ: 3521670276 Click to send a QQ message
Wechat: A2020071098
Hefei TNJ Chemical Industry Co.,Ltd.
Product Name: 3-hydroxy-2,7-naphthalenedisulfonic acid, disodium salt Request for quotation
CAS: 135-51-3
Tel: 0086-551-65418684
Email: sales@tnjchem.com
　　　　 info@tnjchem.com
Mobile: 0086 189 4982 3763
QQ: 2881500840 Click to send a QQ message
Wechat: 0086 189 4982 3763
WhatsApp: 0086 189 4982 3763
Product List: View Catalog
Shanghai Yuanye Bio-Technology Co., Ltd.
Multiple Specifications
Product Name: 2-Naphthol-3,6-Disulfonic Acid Disodium Salt Visit Supplier Webpage Request for quotation
CAS: 135-51-3
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409 Click to send a QQ message
Wechat: 18301782025
View History
2-Naphthol disodium sulfonate ( R salt
Raw Materials for 2-Naphthol disodium sulfonate ( R salt
2-Naphthol
Sulfuric acid
Downstream Products for 2-Naphthol disodium sulfonate ( R salt
sodium 6,7-dihydroxynaphthalene-2-sulphonate
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