Supplier Product Identification Physical and Chemical Properties
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4-Hydroxy-1-naphthalenesulfonic acid(84-87-7)

Supplier Product Identification Physical and Chemical Properties

Product Identification

Product Name
4-Hydroxy-1-naphthalenesulfonic acid
Synonyms
1,4-Oxy Acid
1-Hydroxy-4-naphthalenesulfonic acid
1-Naphthalenesulfonic acid, 4-hydroxy-
1-Naphthol-4-sulfonic acid
a-Naphthol-4-sulfonic acid
Nevile and Winther's acid
CAS
84-87-7
Formula
C10H8O4S
Molecular Weight
224.24
EINECS
201-568-4
Merck
12,6478
Beilstein/Gmelin
2214801
Beilstein Reference
4-11-00-00614

Physical and Chemical Properties

Solubility in water
Very soluble
Melting Point
170
Boiling Point
427
Density
1.55 g/cm3
pKa/pKb
0.73 (pKa)
Partition Coefficient
-.44
Usage
Preparation of azo dyes.
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