|
ANALYSIS REPORT OF ZINC
SULPHATE HEPTAHYDRATE [ZnSo4 7H20]
|
PARTICULARS |
ELECTROPLATING |
IP |
LR |
|
1) Description |
White crystalline powder |
White crystalline powder |
White crystalline powder |
|
2) % Assay |
NLT 98.0 |
97 – 104.0 |
NLT 99.0 |
|
3) PH of 5% solution |
4.5 – 5.5 |
4.5 – 5.5 |
4.5 – 5.5 |
|
4) % of Iron (Fe) |
NMT 100 ppm |
NMT 280 ppm |
NMT 50 ppm |
|
5) % Chloride (cl) |
Traces |
NMT 350 ppm |
NMT 50 ppm |
|
6) % insolubles |
NMT 0.1 |
N.A. |
NMT 100 ppm |
|
7) % Alkalies earth |
N.A. |
NMT 0.35 |
N.A. |
#
N.A. = Not Applicable.
#
Traces indicates contemnation below 5 ppm
APPLICATIONs:
Electroplating: tinting in preparing bath for zinc coating
& metal colouring
Pharma: as catalyst in preparing drug intermediates
LR: as reagent in analytical chemistry. |