Like Chlorine, Caustic Soda (Sodium Hydroxide) is a crucial inorganic chemical produced by the electrolysis of salt. It is a vital ingredient in a wide array of modern industrial operations, especially soap manufacturing.
AIP’s Caustic Soda is produced and sold as 97.5% wt anhydrous flake grade material. The anhydrous material is sold in 25 kg bags (flake). It is also available as a 50% liquid, delivered in bulk tankers.
Caustic Soda Lye (30%)
|
Parameters |
Specification |
|
Specific Gravity |
1.280 – 1.325 |
|
Temperature °C |
40 – 80 |
|
SodiumHydroxide (at above temp) g/lit |
380 – 415 |
|
Sodium Hydroxide (at above temp) wt.% |
30.0 - 31.0 |
Caustic Soda Lye (50%)
|
Parameters |
Specification |
|
Specific Gravity |
1.490 – 1.525 |
|
Temperature °C |
40 – 60 |
|
Sodium Hydroxide (at above temp) gpl |
748 – 800 |
|
Sodium Hydroxide (at above temp) wt.% |
50.0 - 51.0 |
|
Sodium Carbonate wt. % |
≤ 0.2 |
|
Sodium Chloride ppm by wt |
≤ 100 |
|
Sodium Sulphate ppm by wt |
≤ 100 |
|
Sodium Chlorate ppm by wt |
≤ 10 |
|
Iron as Fe+3 ppm by wt |
≤ 5.0 |
|
Nickel as Ni+2 ppm by wt |
≤ 1.0 |
|
Copper as Cu+2 ppm by wt |
≤ 2.0 |
|
Manganese as Mn+2 ppm by wt |
≤ 2.0 |
|
Silicate as SiO2 ppm by wt |
≤ 10.0 |
Caustic Soda Flakes
Parameters |
Specification |
|
Sodium Hydroxide wt. % |
≥ 97.5 |
|
Sodium Carbonate wt. % |
≤ 0.40 |
|
Sodium Chloride ppm by wt |
≤ 200 |
|
Sodium Sulphate ppm by wt |
≤ 200 |
|
Iron as Fe+3 ppm by wt |
≤ 10 |
|
Nickel as Ni+2 ppm by wt |
≤ 5.0 |
|
Copper as Cu+2 ppm by wt |
≤ 4.0 |
|
Manganese as Mn+2 ppm by wt |
≤ 4.0 |
|
Silicate as SiO2 ppm by wt |
≤ 20 |
|
Water Insolubles ppm by wt |
≤ 200 |

