Sulphur Red 1
Name:C.I.Sulphur Red 1,C.I.53721
Molecular Structure:
C.I.Sulphur Red 1,C.I.53721,CAS 61814-39-9,Thional Red Brown 5R
CAS Registry Number:61814-39-9
Manufacturing Methods : similar C.I. Sulphur Red 6 (C.I. 53720) stated in the method, just in the vulcanization reaction do not add copper sulfate. According to the requirements of the color, in vulcanization reaction to adjust the (decrease) the proportion of copper sulfate can be obtained by the dark red color to red light brown dye.
Properties and Applications: dark red. In the water partly dissolved; In concentrated sulfuric acid for blue purple, dilution after brown precipitation; In the sodium sulfide solution solubility is good, for the red light brown.
| Standard | Acid Resistance | Alkali Resistance | Light Fastness | Fulling | Persperation Fastness | Soaping | |
| Moderate | Severe | ||||||
| ISO | 4-5 | 2 | 3 | 3 | 3 | ||
| AATCC | 4-5 | 2 | 5 | 2 | 3 | ||
List of Suppliers:
Thional Red Brown 5R( Sandoz Ltd )