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Specifications

4-Amino-1-naphthalenesulfonic acid

Quick details:
Other Names: 4-Amino-1-naphthalenesulfonic acid    CAS No.: 130-13-2
MF: C10H8O3NSNa   EINECS No.: 204-975-5      Purity: 74-75%
Place of Origin: Tianjin China (Mainland)    Application: Intermedia of The Azo Dyes
H.S CODE: 29214500                      Appearance: White or Grey Crystallizing
 
Packaging details: 25kgs/50kgs net in plastic woven bag with PP lining.
 
Specifications
Sodium Naphthionate 4-Amino-1-naphthalenesulfonic acid CAS 130-13-2 74-75%
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4-Amino-1-naphthalenesulfonic acid
Synonyms
Sodium Naphthionate
Molecular weight
245.23
Molecular Formula
C10H8O3NSNa
Descriptions
1-Amino-4-naphthalene sulfonic acid sodium salt is a grayish -white crystal. The sodium salt of industrial products contains two or four crystal water. It changes slowly into a rose colour in air.It is easily soluble in water and soluble in 95% of alcohol. Its chief use is employed in organic pigments or the sythesis of intermediates of azo -dyes.
Specification
Index
High grade
1st grade
Appearance
Grayish white crystal
Purity %min.
75
74
1-Naphthylamine%max.
0.02
0.02
Water insolubles %max.
0.1
0.2
 
Packing
extra grade Specification In plastic woven bag of 50kgs nett or 25kgs nett each with plastic lining
Notes
Put in dark, cold and air through place to prevent sun light.
 
Nature and use:
Ashen crystallization, turn into rose-colored gradually among air, very much easy to
dissolve on ink, Do not dissolve it in the ethanol . Product this sulphurate but make by
1-naphthyl-amine , use as the intermedia of the azo dyes mainl