Download Specification - NPCIL e

Specification
Annexure-I
Technical specification of items
Item-I
Tri-sodium phosphate commercial grade in white, granular, crystalline
solid form
Physical properties
1.
Should be water soluble
2.
Melting point – 73.50C
3.
Density – 1.6 to 1.65 gm/cm3
Chemical properties
Purity of phosphates as P2O3 % by mass minimum 41%
Packing and marking
1.
In PVC lined bag either in 25 Kg/50 Kg net weight
2.
Batch number, year of manufacture and source of manufacture to be
indicated on the bag.
Test certificate
Test certificate of purity from govt. approved laboratory and MSDS to be
supplied in bulk supply.
Item-II
Copper sulphate penta hydrate in powder form in deep blue colour (CuSO4,
5H2O) in granular form
Physical properties
1.
Should possess no odour.
2.
Solubility in water 266 gm/litre at 200C.
3.
% purity of copper sulphate (w/w), minimum 95%.
Chemical properties
Impurity – free sulphuric acid (% w/w)
As Fe in ppm
- =0.2
- 200 ppm
Arsenic (As)
- <5 ppm
Packing labelling
Packing in PVC line bag net weight in 25 Kg/50 Kg bags. The labelling of
the bag to contain source of manufacture name of chemical and year of
manufacturing.
Test certificate
Test certificate of purity and MSDS to be supplied on bulk supply.
Item-III
Ferric nitrate nona-hydrate in powder form
Physical and chemical properties
Melting point – 470C to 47.20C
Density – 1.68 gm/cm3 at 200C
% purity minimum 70% (w/w)
Test certificate
Test certificate of purity and MSDS to be supplied on bulk supply.
should be labelled containing source and date of manufactures.
Bags
Item-IV
Potassium Ferro-cyanide in yellow coloured in free flowing crystals
Technical specification
1.
200C)
Solubility – Easily soluble in water (33.7 gm in 100 gm water at
2.
Bulk density – 0.9 to 1.1 gm/cc
3.
Specific gravity – 1.853
Chemical composition
1.
Purity as potassium Ferro-cyanide
- 95% min
2.
Chloride content
- = 0.30%
3.
Free moisture content
- = 0.5% max.
Packing - Packing in 50 Kg/25 Kg net weight in HDPE laminated bags with
inner polyliner.
Test certificate
Test certificate of purity from MSDS govt. approved laboratory to be
submitted in bulk supply. MSDS manufacturing accompany bulk supply.