Product description:
VAT scarlet R is purple red or dark red powder.
Bright blue in concentrated sulfuric acid, after dilution to produce a bright red precipitate.
It is purplish red in the alkaline insurance powder reduction solution. Dark red in acid.
Product parameter:
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CAS No. |
6424-77-7
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EINECS No.
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229-187-9
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C.I. No.
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71140
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Molecular Formula
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C38H22N2O6
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Molecular Weight
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602.60
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Appearance
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Purple red powder
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Application
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Used for dyeing cotton, viscose fiber, silk, Vinylon and cotton printing. It is an important red dye with medium levelling and
affinity. It is one of the pigments used in cars. It can also be used in plastics, painting pigments and gravure printing inks. |
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Density
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1.511 g/cm3
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Solubility
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Bright blue in concentrated sulfuric acid, after dilution to produce a bright red precipitate. It is purplish red in the alkaline insurance powder reduction solution. Dark red in acid.
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Refractive index
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1.831
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PSA
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96.60000
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LogP
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5.95860
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Acidity coefficient
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3.48±0.20(Predicted)
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Storage condition
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Room Temperature
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Product picture:
Application of VAT Dyes:
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