Black 7984

CAS: 2118-39-0

Ref. 3D-CAA11839

Product Information

• Name: Black 7984
• Synonyms: 2,7-Naphthalenedisulfonic acid, 6-amino-4-hydroxy-3-[2-[7-sulfo-4-[2-(4-sulfophenyl)diazenyl]-1-naphthalenyl]diazenyl]-, sodium salt (1:4), 2,7-Naphthalenedisulfonic acid, 6-amino-4-hydroxy-3-[[7-sulfo-4-[(4-sulfophenyl)azo]-1-naphthalenyl]azo]-, tetrasodium salt, 2,7-Naphthalenedisulfonic acid, 6-amino-4-hydroxy-3-[[7-sulfo-4-[(p-sulfophenyl)azo]-1-naphthyl]azo]-, tetrasodium salt, Black No. 2, C Black 7, Ci 27755, Daiwa Black FS 20, E 152, E 152 (dye), Food Black 2, Pro-Jet Fast Black 2 Liquid, Tetrasodium 6-Amino-4-Hydroxy-3-[[7-Sulfonato-4-(4-Sulfonatophenyl)Azo-1-Naphthyl]Azo]Naphthalene-2,7-Disulfonate, tetrasodium (3E)-6-amino-4-oxo-3-(2-{7-sulfinato-4-[(E)-(4-sulfonatophenyl)diazenyl]naphthalen-1-yl}hydrazinylidene)-3,4-dihydronaphthalene-2,7-disulfonate, C.I. Food Black 2, tetrasodium salt

Description

Black 7984 is a magnetic inkjet pigment that is composed of a black pigment, magnetic particles, and an acid. The pigment has been shown to be efficient in the removal of heavy metals from water and soil. Black 7984 can be used as an additive in paints, coatings, and inks. The magnetic particles are coated with an acid that reacts with heavy metals to form a metal salt that can be removed by filtration or adsorption. Black 7984 is also biodegradable, which makes it environmentally friendly.

• Brand: Biosynth

Chemical properties

• Molecular weight: 809.7 g/mol
• Formula: C₂₆H₁₅N₅Na₄O₁₂S₄
• Purity: Min. 95%