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Naphthalene-1,5-Disulfonic Acid

Naphthalene-1,5-Disulfonic Acid / CAS : 81-04-9

Appearance Pale yellow crystal UN 2585
HS 29041000 DG Class 8
Synonyms 1,5-Naphthalenedisulfonic ACID; Armstrong's Acid; Armstrong's S Acid; 1,5-Naphthylene Disulfonic Acid; Naphthalene-1,5-Disulphonic Acid
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Properties

Summary

Formula
C10H8O6S2
Molecular Mass
288.29700
Exact Mass
287.97600
PSA
125.50000
Logp
3.49480
IUPAC
naphthalene-1,5-disulfonic acid
SMILES
C1=CC2=C(C=CC=C2S(=O)(=O)O)C(=C1)S(=O)(=O)O

Attribute classification

Matter Classification
organic
Category
Dyestuffs and Pigments > Intermediates

Chemical and Physical Properties

Melting Point
242.5°C
Density
1.704 g/cm3
Boiling Point
400.53°C
Appearance
Pale yellow crystal

Export information

HS Code
29041000
Export Rebate
13%
UN No.
2585
DG-Class
8
Risk Code
R34
Safety Label
C

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