Product description:
Acid black 52 is black powder dyes. It is used as dyes for leather,wool,nylon etc.
Product parameter:
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Synonyms
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C.I. 15711
Acid black 52 C.I. Acid Black 52 Acid Black 52 (15711) Acid Black GL Acid Black WAN Acid Complex Black WAN Chromium Complex Black WAN 3-hydroxy-4-[(2-hydroxy-1-naphthyl)azo]-7-nitro-naphthalene-1-sulfonic acid sodium 3-hydroxy-4-(2-hydroxy-1-naphthylazo)-7-nitronaphthalene-1-sulphonate chromate(3-),bis(3-hydroxy-4-((2-hydroxy-1-naphthalenyl)azo)-7-nitro-1-naphtha 4-[(2-hydroxynaphthalen-1-yl)hydrazono]-7-nitro-3-oxo-3,4-dihydronaphthalene-1-sulfonate 3-Hydroxy-4-[(2-hydroxy-1-naphthalenyl)azo]-7-nitro-1-naphthalenesulfonicacid,monosodiumsalt, chromiumcomplex |
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CAS No. |
5610-64-0
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EINECS No.
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227-029-3
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C.I. No.
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15711
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Appearance
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Black powder
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Strength
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150%
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Application
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Used for wool, polyamide, silk dyeing and printing, also used in leather and electrochemical dyeing aluminum shading
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Molecular formula
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C60H36Cr2N9Na3O21S3
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Molecular Weight
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1488.13
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Solubility
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A red light black soluble in water, soluble in ethanol and soluble fiber element, slightly soluble in acetone, insoluble in other
organic solvents. Meet strong sulfuric acid is dark, dilute to create black precipitation; Meet nitric acid was yellow brown solution; In a rare dark-purple sodium hydroxide solution |
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Density
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1.64g/cm3
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Refractive index
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1.747
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Stability
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Stable. Incompatible with strong oxidizing agents
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Preparation
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4-Amino-3-hydroxy-7-nitronaphthalene-1-sulfonic acid diazo, and Naphthalen-2-ol matches, will result in aqueous solution with
formic acid chromium common heating, in 115 ℃ keep 2 hours, and then into the same batch of have no complexation half of the dyes, and sodium hydroxide move into alkaline, drying. The component of product is about 2 to 3 Moore single atoms chromium azo dyes. |
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Safety Phrases
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S24/25
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PSA
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529.74000
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LogP
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18.70770
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HS code
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29270000
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Standard
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Light Fastness
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Soaping
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Persperation Fastness
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Oxygen bleaching
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Fastness to seawater
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Fading
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Stain
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Fading
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Stain
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Fading
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Stain
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ISO
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6-7
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4
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4
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4-5
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4
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4-5
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AATCC
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7
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3-4
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3-4
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4-5
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3
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5
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Product picture:
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