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Qualitative Indanthrene yellow paper for Vat dyes
Qualitative Indanthrene yellow paper for Vat dyes

Indanthrene yellow test paper allows the easy determination of hydrosulfite (sodium dithionite). It is used to determine the endpoint in the conversion of vat dyes to the leuco form. Because of the special purpose, indanthrene yellow paper is also called hydrosulfite paper.
Platform Qualitative test paper
Parameter Vat dyes
Detection limit Vat dyes - Alkaline sodium dithionite traces
Color change Vat dyes - yellow ↔ blue
Length 70 mm
Width 20 mm
Shelf life 2 Years
Storage temperature 4−30 °C
Scope of delivery 200 test strips in a plastic box
Hazardous material No
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