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Jiujiang Ronghua Technology Co.,Ltd.
Jiujiang Ronghua Technology Co.,Ltd.
7 YRS
Jiangxi, China
Main Products:
Naphthalene-1,5-Disulfonic Acid / Benzenesulfonic acid, 2-Amino-5-[[2-(Sulfooxy)Ethyl]Sulfonyl]
Jiangxi, China
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Armstrong's Acid / CAS 81-04-9
OVERVIEW
Uses
Packaging
25 KG/Woven Bag
Lead Time
In Stock
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DESCRIPTION
Armstrong's Acid
CAS：81-04-9
Molecular formula：C10H8O6S2
Molecular weight：288.3
Structure：
Physicochemical properties: white flake crystal (with tetramolecular crystal water). Melting point 240-245 ℃ (anhydrous substance). Soluble in water and ethanol, insoluble in ether.
Product use: used as an intermediate of dyes. It is used to manufacture intermediates such as 1,5-dihydroxynaphthalene and amino c acid.
Typical Properties
Summary
Used as an intermediate of dyes. It is used to manufacture intermediates such as 1,5-dihydroxynaphthalene and amino c acid.
CAS No.
81-04-9
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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