Disodium 2-naphthol-3,6-disulfonate
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Disodium 2-naphthol-3,6-disulfonate
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CAS No:
135-51-3
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Formula:
C10H9NaO7S2
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Chemical Name:
Disodium 2-naphthol-3,6-disulfonate
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Synonyms:
2,7-Naphthalenedisulfonicacid,3-hydroxy-,disodiumsalt;2-naphthol-3,6-disulfonic;BETA-NAPHTHOL-3,6-DISULFONIC ACID DISODIUM SALT;DISODIUM 2-NAPHTHOL-3,6-DISULFONATE;DISODIUM 3-HYDROXY-2,7-NAPHTHALENEDISULFONATE;3-HYDROXYNAPHTHALENE-2,7-DISULFONIC ACID DISODIUM SALT;3-HYDROXY-2,7-NAPHTHALENEDISULFONIC ACID DISODIUM SALT;2-NAPHTHOL-3,6-DISULFONIC ACID DISODIUM SALT
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CAS No:
Description
DryPowder
slightly grey solid
An experimental teratogen. Experimental reproductive effects. When heated to decomposition it emits toxic fumes of SO, and NazO. See also SULFONATES.
Disodium 2-naphthol-3,6-disulfonate Basic Attributes
328.28
347.935028
3643184
205-196-3
6Y99O91ULZ
TSCA listed
DTXSID8044543
White to Gray to Brown
2908990000
Characteristics
151
2.51520
DryPowder
107ºC
Soluble in water
Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
Inert atmosphere,Room Temperature
Safety Information
NONH for all modes of transport
3
Xi
26-36
QJ6477000
Xi
Stable. Incompatible with strong oxidizing agents.
P305 + P351 + P338
36/38
|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.
Disodium 2-naphthol-3,6-disulfonate Use and 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.
Used in the production of food coloring, azo dyes, photosensitive copy paper.
Dyes
3-Hydroxynaphthalene-2,7-disulfonic Acid Disodium Salt, is used in analytical studies for detecting organic explosives and propellants by fast liquid chromatography quadrupole time-of-flight mass spectrometry.
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
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Disodium 2-naphthol-3,6-disulfonate
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