CAUSTIC SODA FLAKES
Parameters |
SRAAC Specifications |
IS 252 - 1991 Technical grade |
| Purity as NaOH, % by mass |
Min. 97.0 |
Min. 95.0 |
| Sodium carbonate ,% by mass |
Max. 0.75 |
Max. 2.00 |
| Sodium chloride, % by mass |
Max. 0.10 |
|
| Iron as Fe, ppm |
Max. 20.0 |
|
| Nickel as Ni , ppm |
Max. 4.0 |
|
CAUSTIC SODA LYE
Parameters |
SRAAC Specifications |
IS 252 - 1991 Technical grade |
-
a )Alkalinity as NaOH, % by mass
-
b) On dry basis, % by mass
|
Min.47.0
Min. 98.0 |
--
Min. 95.0 |
| Sodium carbonate ,% by mass |
Max. 0.50 |
Max. 2.00 |
| Sodium chloride, % by mass |
Max. 0.02 |
--- |
| Iron as Fe, ppm |
Max. 20.0 |
Max.350 |
| Silica as SiO2, ppm |
Max. 5.0 |
--- |
| Mercury as Hg, ppm |
Nil |
Nil |
| Matter insoluble in water, % by mass |
Traces |
Max. 0.02 |
| Copper as Cu, ppm |
Nil |
--- |
| Manganese as Mn , ppm |
Nil |
--- |
CAUSTIC SODA FLAKES (EXPORT QUALITY)
Parameters |
SRAAC Specifications |
| Purity as NaOH, % by mass |
Min. 98.0 |
| Sodium carbonate ,% by mass |
Max. 0.75 |
| Sodium chloride, % by mass |
Max. 0.10 |
| Iron as Fe, ppm |
Max. 20.0 |
| Nickel as Ni , ppm |
Max. 4.0 |
- Sodium Hydroxide is used in the refining of alumina containing ore (bauxite) to produce alumina (aluminum oxide).
- Sodium Hydroxide was traditionally used in soap making.
- Sodium Hydroxide is a component of drilling mud, used to increase viscosity which prevents the weighed material from settling.
- Sodium Hydroxide was also used in making paper.
- For the manufacture of biodiesel, Sodium Hydroxide is used as a catalyst for the trans esterification of methanol and triglycerides.
- A solution of Sodium Hydroxide in water was traditionally used as the most common paint stripper on wooden objects.
- It is used to neutralize acids and as a source of sodium ions for reactions that produce other sodium compounds.
- The reaction of cellulose with Sodium Hydroxide is a key step in the manufacturing of rayon and cellophane.
- Pharma Industries.
- Water treatment.
|
