DSD acid /4,4 Diaminostilbene 2,2 disulfonic acid

Product Overview

Description

4,4-Diaminostilbene-2,2-disulfonic acid

Trade name: DSD acid 
Molecular formula: C₁₄H₁₄N₂O₆S₂
Molecular weight: 370.4

Property:
1)Light yellow cream or powder, soluble in ethanol and ether; insoluble in water, easily soluble in alkaline solution.
2)Can be easily oxidized into red; has the property of aromatic acid or aromatic amine

 

Specification

Item	Index
(1)Appearance dry/wet	light yellow powder/light yellow cream
(2)Dry product total amino value(gross dry sample)% ≥	96.0
(3)Moisture% ≤	1.5
(4)Content of alkali insolubles (gross cream )% ≤	0.10
(5)Benzyl compound(gross sample)% ≤	0.25
(6)Iron(PPM) ≤	50

Main use: In the manufacture of fluorescent brighteming agent,Chrysophenine G and Direct Yellow R, also as pesticides

Packing: dry product: in 25kg woven bags or upon clients' request;

                wet product: in 40kg woven bag or upon clients' request.