Product description:
Vat olive T is dark brown powder. Green in concentrated sulfuric acid, black precipitation after dilution; It is reddish brown in concentrated nitric acid. Alkaline reduction cryptochroma is gray; Acid reduction cryptochromes are dark olive.
Product parameter:
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CAS No. |
4395-53-3
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EINECS No.
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224-519-9
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C.I. No.
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69525
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Molecular Formula
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C45H22N2O5
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Molecular Weight
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670.67
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Appearance
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Brown powder
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Application
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Used for dyeing cotton fibers, also used for dyeing silk, wool and polyester cotton fabrics
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Density
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1.527±0.06g/cm3
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Solubility
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Green in concentrated sulfuric acid, black precipitation after dilution; It is reddish brown in concentrated nitric acid. Alkaline
reduction cryptochroma is gray; Acid reduction cryptochromes are dark olive |
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Refractive index
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1.826
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Acidity coefficient
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-2.72±0.20
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Storage condition
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Sealed in dry,Room Temperature
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Product picture:
Application of VAT Dyes:
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