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Sulphur Black 1

CAS No.1326-82-5
Chemical Name:Sulphur Black 1
CBNumber:CB4854896
Molecular Formula:C6H4N2O5
Formula Weight:184.11
MOL File:1326-82-5.mol

Sulphur Black 1 Property

Melting point 114.8 °C
Density 1.68 g/cm3
refractive index 1.55-1.65
form Black powder
Odor Sulfurous, rotten egg like odor
CAS DataBase Reference 1326-82-5(CAS DataBase Reference)
EPA Substance Registry System C.I. Sulphur Black 1 (1326-82-5)

Safety

Hazardous Substances Data :1326-82-5(Hazardous Substances Data)

Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal wordDanger
Hazard statements H314
Precautionary statements P260-P264-P280-P301+P330+P331-P303+P361+P353-P363-P304+P340-P310-P321-P305+P351+P338-P405-P501

Sulphur Black 1 Chemical Properties,Usage,Production

Preparation 2,4-Dinitrophenol?or its Sodium salt (by 1-Chloro-2,4-dinitrobenzene alkaline hydrolysis) and Sodium polysulfide heating, in 110 ~ 120 ℃ reflux heating 48 to 72 hours, or in 130 ~ 140 ℃ under pressure to short time heating, then dilution melt, adding acid or air oxidation make dye completely precipitated out. In the molten material to the intermediate Sodium polysulfide proportion must be appropriate, such ability in reaction end solution almost no dye residual. According to dye the preparation process of the use conditions, has determined the empirical formula is C24H16N6O8S7 orC24H16N6O8S8
Definition ChEBI: 2,4-dinitrophenol is a dinitrophenol having the nitro groups at the 2- and 4-positions. It has a role as an oxidative phosphorylation inhibitor, a bacterial xenobiotic metabolite, an antiseptic drug, an allergen and a geroprotector. It is a conjugate acid of a 2,4-dinitrophenol(1-).

Properties and Applications green black and blue black. Black uniform powder. Insoluble in water and Etanol. In the Sodium sulfide solution solubility is good, for green black; Add Sodium hydroxide and Sodium sulfide solution of colour and lustre is blue; Add hydrochloric acid Sodium sulfide solution to have green black precipitation; In the cold part of concentrated sulfuric acid solution, after heating for deep green light blue, further heating into dark blue; In 25% of fuming sulfuric acid for black blue, dilution after green black precipitation. Dyeing content in alkaline insurance powder solution for yellow olive, after oxidation can restore the original colour and lustre; In Sodium hypochlorite solution all fade, join concentrated sulfuric acid no effect. Mainly used for cotton, vinylon/cotton blended fabric dyeing, and can also be used to hemp, viscose fiber dyeing.

Standard	Acid Resistance	Alkali Resistance	Light Fastness	Fulling	Persperation Fastness	Soaping
Standard	Acid Resistance	Alkali Resistance	Light Fastness	Fulling	Persperation Fastness	Moderate	Severe
ISO	4-5	4-5	6-7	4-5	5	5	4-5
AATCC	5	5	6-7	4			4-5