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5-Amino-1-naphthalenesulfonic acid

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5-Amino-1-naphthalenesulfonic acid Basic information

Product Name:
5-Amino-1-naphthalenesulfonic acid
Synonyms:
  • 5-amino-1-naphthalenesulfonicaci
  • 5-SULFO-1-NAPHTHYLAMINE
  • laurentacid
  • 1-aminonaphtalene-5-sulfonicacid
  • 5-AMino-1-naphthalenesulfonic acid technical, >=90% (T)
  • 5-AMino-1-naphthalenesulfonic Acid , 98.0%(T)
  • Laurens Acid
  • Laurents acid~1-Naphthylamine-5-sulphonic acid
CAS:
84-89-9
MF:
C10H9NO3S
MW:
223.25
EINECS:
201-571-0
Product Categories:
  • Intermediates of Dyes and Pigments
Mol File:
84-89-9.mol
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5-Amino-1-naphthalenesulfonic acid Chemical Properties

Melting point:
>300°C
Boiling point:
220°C (rough estimate)
Density 
1.3588 (rough estimate)
refractive index 
1.6500 (estimate)
pka
pK1: 3.69 (25°C)
Water Solubility 
Soluble in hot water.
Merck 
14,6404
BRN 
2214149
CAS DataBase Reference
84-89-9(CAS DataBase Reference)
EPA Substance Registry System
1-Naphthalenesulfonic acid, 5-amino-(84-89-9)
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Safety Information

Hazard Codes 
C
Risk Statements 
20/21/22-34
Safety Statements 
26-36/37/39-45
RIDADR 
UN 2585 8/PG 3
WGK Germany 
3
RTECS 
QK1270500
TSCA 
Yes
HazardClass 
8
PackingGroup 
III

MSDS

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5-Amino-1-naphthalenesulfonic acid Usage And Synthesis

Uses

Intermediate of dyestuff

Purification Methods

Crystallise the acid under nitrogen from boiling water and dry it in a steam oven [Bryson Trans Faraday Soc 47 522, 527 1951]. [Beilstein 14 IV 2800.]

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