Potassium hydroxide technical
Obtaining
Technical potassium hydroxide (caustic potash) manufactured by electrolysis of potassium chloride.
Application
Technical potassium hydroxide is used for the production of fertilizers, synthetic rubber, electrolytes for batteries, chemicals, xanthates, salts, in the medical industry and in other industries.
Safety requirements
Potassium hydroxide is
Packing
A solution of potassium hydroxide is poured into clean steel containers or barrels with a capacity of 100, 200 and 275 liters.
Solid potassium hydroxide is packed in dry steel drums with a capacity of 50–180 dm і.
Product in the form of flakes may be packed in steel drums with a capacity of 50–180 dm і with polyethylene liner or plastic bags.
Guaranteed shelf life
3 years from date of manufacture.
Item | Standard for grade and grade | |||
Solid | Liquid | |||
Top | First | Top | First | |
Appearance | Flakes of green, purple or gray | Scales or smooth green, purple or gray | The solution is blue, green or gray, sediment is allowed | |
Mass fraction of caustic alkali (KOH + NaOH) in terms of KOH, %, not less | 95.0 | 95.0 | 54.0 | 52.0 |
Mass fraction of potassium carbonate (K2CO3), %, not more | 1.4 | 1.5 | 0.4 | 0.8 |
Mass fraction of chlorides as Cl-, %, not more | 0.7 | 0.7 | 0.7 | 0.8 |
Mass fraction of sulfate (SO4І-), %, not more | 0.025 | 0.05 | 0.03 | 0.1 |
Total iron (Fe2+), %, not more | 0.03 | 0.03 | 0.004 | 0.01 |
Mass fraction of potassium hypochlorite (KClO3), %, not more | 0.1 | 0.2 | 0.15 | 0.3 |
Mass fraction of silicon (Si), %, not more | 0.01 | 0.02 | 0.015 | — |
Mass fraction of sodium in terms of NaOH, %, not more | 1.5 | 2.0 | 1.7 | 2.0 |
Calcium (Ca2+), %, not more | 0.01 | 0.01 | 0.005 | — |
Mass fraction of aluminum (Al3+), %, not more | 0.003 | 0.005 | 0.003 | — |
Mass fraction of nitrate and nitrite in terms of nitrogen (N), %, not more | 0.003 | 0.003 | 0.003 | — |