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fast red b base
fast red b base

CAS 97-52-9
Fast Red B Base Wholesale

Soluble in acetone, soluble in ethanol, ethyl acetate, acetic acid and benzene. It is prepared by condensation of o-methoxaniline with p-toluene sulfonyl chloride in sodium bicarbonate, acidified with nitric acid, and neutralized with dilute sulfuric acid.

Applications of Fast Red B Base

This product is ice dyeing dye color base, mainly used for cotton fabric dyeing printing color development agent, also used in the manufacture of fast pigment, jujube red, golden yellow, black and other organic pigments.

Technical Information of Fast Red B Base

Density1.3±0.1 g/cm3
Boiling Point364.2±22.0 °C at 760 mmHg
Melting Point140-142 °C(lit.)
Molecular FormulaC7H8N2O3
Molecular Weight168.15
Flash Point174.0±22.3 °C
Precise Quality168.053497
PSA81.07
LogP1.85
Appearance CharacteristicsLight yellow powder
Vapor Pressure0.0±0.8 mmHg at 25°C
Refractive Index1.601


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