Vat Brown 34

2,5-Dichloro-3,6-bis(phenylamino)cyclohexa-2,5-diene-1,4-dione vulcanization. Vulcanizing agent including: sodium sulfide, sodium sulfide and sodium acetate, sulfur sodium hydride, sodium sulfide and sulfur sodium hydride, sodium thiosulfate and sodium sulfide and ferric chloride.

brown. In the basic insurance powder solution for yellow brown; In the acidic insurance powder solution for pale yellow.