Dyes tannic acid

Dyes tannic acid

Dyes gallotannic acid

Specifications

This is the description of Dyes tannic acid

Testing item

Unit

Standard

appearance

--

light yellow powder

content

%

≥83%

loss on drying

%

≤9.0

light transmittance

%

≥53.0

water insoluble

%

≤0.5%

gallic acid

%

≤7.0

production scale

--

1000Tons/Year

packaging

fiber drum with inner plastic bag

Performance: the product is light yellow to light brown powder, with special smell; soluble in water, ethyl alcohol and acetone; insoluble in chloroform or diethyl ehter
Quality index : GB5308-85
Uses: dye-fixing agent, mordant, fiber deodorant and synthetic dyes
Storage: avoid moistre and sunlight, in seal                         
Packaging: fiber drum with inner plastic bag; net weight: 25kg


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