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| Appearance | Powder, Granular, |
| Content | < 98.5% |
| Formula | C3 H3 N3 O3 |
| Burnt residue | 0.05% |
| Molecular Weight | 129.07 |
| pH (1% solution) | 4 |
| Moisture | 0.5 to 0.50% max |
| Water Solubility @ 25°C | 3 gram / 1000 ml |
| Density | 2.5 |
|
Physical
Appearance: Dark grey/black Pellet |
Chemical
Type: Carbon |
CHEMICAL COMPOSITION:
Sodium Bicarbonate NaHCO3 % : 98 MIN.
Sodium Carbonate Na2CO3 % : 2 MAX.
Sodium Bicarbonate of the above chemical composition should be treated with Magnesium Stearate, Mg (C18H36O2)2, to enhance the flow properties of the product.
PARTICLE SIZE: Pre‐milled with a typical fine size of 30 ‐ 40μm ( Fine Particle 0.03 mm to 0.04 mm )
STANDARD SPECIFICATION:
Methylene blue value G/100g min 15
Moisture as packed % max 5
Mesh size US sieve Wet Seive
> 40 (0.425 mm) % max 0
> 70 (0.212 mm) % max Trace
< 200 (0.075 mm) % min 85
Surface area m2g‐1 850
Iodine number Mg g‐1 min 800
Bulk density g cm‐3 0.45
Dust explosion class St1
Smoulder temperature >450c
Appearance : Acidic Blend liquid; mixes with water
pH : Acidic
Specific gravity : 1.05 - 1.1
Solubility in water : miscible
SPECIFICATION FOR SILICA GEL INDICATING (BLUE) / NON INDICATING (WHITE):
| Loss on drying : | Not more that 5% mass |
| Absorption Capacity : | 27% min on the basis of mass |
| PH : | 3.5 to 8. |
| Chlorides : | 0.05% by mass max |
| Cobalt (as CoCl2) : | 0.4 by mass max |
| Ammonium compounds (as NaH3): | 0.5% by mass max |
| Sulphates (Na2SO4) : | 0.5% by mass max |
| Packing: |
25 / 50 kgs M S drum (Smaller packing available). |
Other Details:
Moisture content: 10-12%
Ash content at 85°c: 4-6%
Tannin content: 50-60%
Specific gravity at 20°C: 1.54 g/cc
Bulk Density: 0.71 gms/ml
Solubility in water: 800 g/liter
Viscosity mPa.s at 30°C-400g/l solution: 20 pass
Reddish brown color
High tannin content
Excellent tanning properties
Uniform quality
Not dusty powerful astringent
Easily soluble in cold water
