Product description:
VAT red 31 is dark red powder. After the reduction of alkaline solution into cryptochromic purple color, add acid into yellow light brown.
Product parameter:
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CAS No. |
12227-47-3；52591-25-0
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EINECS No.
|
258-029-1
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|
C.I. No.
|
600300
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Strength
|
100%
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Molecular Formula
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C30H16N4O5
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Molecular Weight
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512.4718
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Appearance
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Dark red powder
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Shade
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Blueish
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Application
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Suitable for cotton dyeing and cotton printing, good evenness and affinity. Also used for dyeing silk, cotton and so on. Also used for matching reddish gray or reddish brown
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Density
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1.538g/cm3
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Boiling point
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873.1°C at 760 mmHg
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Flash point
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481.8°C
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Vapor pressure
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5.9E-31mmHg at 25°C
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Refractive index
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1.761
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|
PSA
|
159.24000
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|
LogP
|
5.28120
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|
Storage condition
|
Room Temperature
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Product picture:
Application of VAT Dyes:
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