Sulfonic Acid

We are offering sulfonic acid
classification sulfonic acid
cas no. 6192-52-5, 104-15-4
grade standard medicine grade
purity
p - toluene sulfonic acid , mianly used in pharmaceutic , agro-chemical, activitor , solidifying for painting/resin etc.
detailed description spec.
item/details
mother solution
crude
commercial grade
pharmaceutical grade
refined grade
reagent grade
total acidity≥%
40-60
90-93
93/95
95/97/
97/99
98/99
total acid ≤%
20-40
3-6
3
2/1
0.7/0.5
0.1
moisturewithout crystallization water≤%
/
4-12
4/2
3.5
2.3
1.9/0.9
fe++ ≤ppm
/
/
70/50
50/30
30/20
20/10
residue on ignition ≤%
/
/
/
0.2
0.2
0.02
m.p.°c
/
/
/
/
/
105-107
ethanol solubility test
/
/
/
qualified
qualified
qualified
water solubility test
/
/
/
qualified
qualified
qualified
color
yellow or black
white, grey
white
white
white
white
packing: for commercial, pharmaceutical and refined grade: in woven bag lined with film bag, net wt. 25kgs or 40kgs; for reagent grade: in cardboard drum lined with film bag, net wt. 25kgs.