5979-27-1

Basic information

• Product Name: sodium 3-[(1,5-dihydroxy-2-naphthyl)azo]-4-hydroxy-5-nitrobenzenesulphonate
• Synonyms: sodium 3-[(1,5-dihydroxy-2-naphthyl)azo]-4-hydroxy-5-nitrobenzenesulphonate;Chrome Black PBG;Mordant Black 51;3-[(1,5-Dihydroxy-2-naphthalenyl)azo]-4-hydroxy-5-nitro-benzene sulfonic acid monosodium salt;C.I. Mordant Black 51;4-Hydroxy-3-[(1,5-dihydroxy-2-naphtyl)azo]-5-nitrobenzenesulfonic acid sodium salt;C.I.16510;Diamond Black SP
• CAS NO: 5979-27-1
• Molecular Formula: C16H10N3NaO8S
• Molecular Weight: 427.32067
• EINECS: 227-782-8
• Mol File: 5979-27-1.mol
• Article Data: 0

Chemical Properties

• Appearance: /
• CAS DataBase Reference: sodium 3-[(1,5-dihydroxy-2-naphthyl)azo]-4-hydroxy-5-nitrobenzenesulphonate(CAS DataBase Reference)
• NIST Chemistry Reference: sodium 3-[(1,5-dihydroxy-2-naphthyl)azo]-4-hydroxy-5-nitrobenzenesulphonate(5979-27-1)
• EPA Substance Registry System: sodium 3-[(1,5-dihydroxy-2-naphthyl)azo]-4-hydroxy-5-nitrobenzenesulphonate(5979-27-1)

Safety Data

• Hazardous Substances Data: 5979-27-1(Hazardous Substances Data)

Usage

Preparation

3-Amino-4-hydroxy-5-nitrobenzenesulfonic acid diazotization, and Naphthalene-1,5-diol?coupling.

Properties and Applications

black. Soluble in water for bordeaux red, right amount soluble in ethanol for orange red brown. In concentrated sulfuric acid for purple brown, dilution for red wine. Dye aqueous solution to join concentrated hydrochloric acid for red brown; With strong caustic is purple. Standard Ironing Fastness Light Fastness Fulling Persperation Fastness Soaping Water Alkali Acid ISO 5 6 5 3 5 5 5

Standard

Ironing Fastness

Alkali

Acid

ISO

5

InChI:InChI=1/C16H11N3O8S.Na/c20-14-3-1-2-10-9(14)4-5-11(15(10)21)17-18-12-6-8(28(25,26)27)7-13(16(12)22)19(23)24;/h1-7,17-18,22H,(H,25,26,27);/q;+1/p-1