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HomeProduct name listJANUS BLACK

JANUS BLACK

JANUS BLACK Structural

What is JANUS BLACK?

The Uses of JANUS BLACK

Janus Black was used for the dyeing of polyacrylonitrile fibers.

Preparation

N, N-diethyl-phenosafranine diazo, coupled with phenol.

Properties and Applications

green and black. Soluble in water for dark green light blue, soluble in ethanol for red light blue. The strong sulfuric acid for green, diluted for purple, and a green precipitation. The dye solution to join hydrochloric acid soluble green precipitate generated; With strong sodium hydroxide solution generation red precipitate.

Standard Light Fastness Persperation Fastness Ironing Fastness Soaping
Fading Stain Fading Stain Fading Stain
AATCC 6 5 5 3-4 5 5

Forms and nomenclature

Janus Black R 17 is formed by coupling diazotized diethylphenosafranine to phenol.

Properties of JANUS BLACK

Melting point: 200 °C (dec.)(lit.)

Safety information for JANUS BLACK

Computed Descriptors for JANUS BLACK

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