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Home > Encyclopedia > 2-Naphthol-3,6-disulfonic acid disodium salt

2-Naphthol-3,6-disulfonic acid disodium salt

2-Naphthol-3,6-disulfonic acid disodium salt structure

2-Naphthol-3,6-disulfonic acid disodium salt 

structure
  • CAS No:

    135-51-3

  • Formula:

    C10H8O7S2.2Na

  • Chemical Name:

    2-Naphthol-3,6-disulfonic acid disodium salt

  • Synonyms:

    2,7-Naphthalenedisulfonic acid,3-hydroxy-,sodium salt (1:2);2,7-Naphthalenedisulfonic acid,3-hydroxy-,disodium salt;Fericon;2-Naphthol-3,6-disulfonic acid disodium salt;Disodium 2-naphthol-3,6-disulfonate;Disodium 2-hydroxy-3,6-naphthalenedisulfonate;R Salt;2-Hydroxy-3,6-naphthalenedisulfonic acid disodium salt;Disodium 3-hydroxy-2,7-naphthalenedisulfonate;39301-76-3

  • Categories:

    Organic Chemistry  >  Carboxylic Acids and Derivatives

Description

DryPowder

2-Naphthol-3,6-disulfonic acid disodium salt Basic Attributes

348.26

347.935028

205-196-3

6Y99O91ULZ

DTXSID8044543

2908999090

Characteristics

151

2.51520

DryPowder

107ºC

Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.

Safety Information

NONH for all modes of transport

3

36/38

26-36

QJ6477000

Xi

Stable. Incompatible with strong oxidizing agents.

P305 + P351 + P338

H315-H319

|Warning|H315 (97.56%): Causes skin irritation [Warning Skin corrosion/irritation]|P264, P280, P302+P352, P305+P351+P338, P321, P332+P313, P337+P313, and P362|Aggregated GHS information provided by 79 companies from 5 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Toxicity

2.00

Drug Information

2-naphthol-3,6-disulfonic acid

2-Naphthol-3,6-disulfonic acid disodium salt Use and Manufacturing

Methods of Manufacturing

2-Naphthol is 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). The sulfonate is diluted and salted out with potassium chloride to make G acid into the form of dipotassium salt to precipitate first (see 26250), and the remaining waste acid solution is salted out with sodium chloride to precipitate R acid into disodium salt to obtain R salt. Raw material consumption quota: G salt waste acid (1.23g/cm3) 35000kg/t, table salt (above 90%) 14000kg/t.

Uses

Used in the production of food coloring, azo dyes, photosensitive copy paper.


Dyes

Synthetic dye and pigment manufacturing|2,7-Naphthalenedisulfonic acid, 3-hydroxy-, sodium salt (1:2): ACTIVE

Computed Properties

Molecular Weight:348.3
Hydrogen Bond Donor Count:1
Hydrogen Bond Acceptor Count:7
Exact Mass:347.93503344
Monoisotopic Mass:347.93503344
Topological Polar Surface Area:151
Heavy Atom Count:21
Complexity:501
Covalently-Bonded Unit Count:3
Compound Is Canonicalized:Yes

Material

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