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Tianjin Yadong Chemical Co.,Ltd.
Tianjin Yadong Chemical Co.,Ltd.
36 YRS
Tianjin, China
Main Products:
2-(4-Aminophenyl)Sulfonylethyl Hydrogen Sulfate / Direct Red F2G / Direct Red 23 / Direct Red 227 / 7-Aminonaphthalene-1,3,6-Trisulfonic Acid / 1-Amino-8-Hydroxynaphthalene-3,6-Disulphonic Acid / 2-Naphthol / Metanilic Acid
Tianjin, China
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K Acid / CAS 118-03-6
OVERVIEW
Packaging
25 KG/Fibre Drum
Lead Time
14-30 days
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DESCRIPTION
K acid
English Name: K acid
CAS No.: 118-03-6
Molecular formula:C10H9NO9S3
Molecular weight: 383.37
EINECS No.: 204-229-9
Density: 1.7995 (rough estimate)
Usage: used for making azo dyes and 2R acid
Typical Properties
Summary
Used for making azo dyes and 2R acids
CAS No.
118-03-6
Formula
C10H9NO9S3
Molecular Mass
383.37500
Exact Mass
382.94400
PSA
214.27000
Logp
3.98570
IUPAC
7-aminonaphthalene-1,3,6-trisulfonic acid
SMILES
C1=C2C=C(C(=CC2=C(C=C1S(=O)(=O)O)S(=O)(=O)O)N)S(=O)(=O)O
Attribute classification
Matter Classification
organic
Category
Dyestuffs and Pigments > Intermediates
Chemical and Physical Properties
Melting Point
140-143 °C(lit.)
Density
1.974g/cm3
Flash Point
>230 °F
Appearance
This product is a relatively new dye intermediate. It looks like a light yellow paste or light gray powder. It is easy to dissolve in water or alkali. It has blue fluorescence. It is easy to oxidize when exposed to air for a long time.
Export information
HS Code
29214990
Export Rebate
13%
UN No.
0.0
DG-Class
0.0
Risk Code
R36/37/38; R22
Safety Label
Xn; Xi
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