Caustic soda flakes (technical sodium hydroxide flakes) – flake mass of white color, very hygroscopic, very soluble in water and alcohol. The formula is NaOH. Technical sodium hydroxide flakes are obtained by evaporating of liquid caustic soda А grade.
Some Caustic Soda Uses
Metal and metal plating industries
Zinc, aluminum and galvanization production
Cotton industry
Textile and fabric and many other related industries
Milk, yogurt and various dairy products
Industrial fat eliminating and related industries
Plastic industry
Car industry and its parts production
Neutralization of acidity of water in drinking water treatment
Degreasing from the surface of animal skin in production of fat
Cellulosic fiber separation and paper pulp production that is the one of the most important and oldest consume using this chemical compound
Canning and dairy
Degreasing of crude oil and production of products related to petrochemistry
Production of hygienic products and cosmetics especially detergents such as soap and shampoo
Caustic Soda Packing
Caustic soda flake packing have different kind but there is very important item that must noted, this item is transporting and storing the sodium hydroxide flake if packing of sodium hydroxide flake have low quality the moisture of weather will penetrate into sodium hydroxide packing so the caustic soda flake will stick together and will turn into lump mode so the quality of sodium hydroxide flake will reduce and would not be use able after a little time.
Sodium hydroxide flake packing must be from two ply laminated polypropylene bags that sealed completely with strong polyester yarnو if using normal yarn for sealing the bags after a little time sodium hydroxide flake will solve the yarn.
Best Packing of Caustic soda flake would be 25 kg PP bags and for keeping away from injuries when transporting its better putting 25 kg bags in Jumbo bags.
Chemical Chart
| Chemical formula: | NaOH |
| Molecular weight: | 40.01 |
| Synonyms: | White caustic, caustic soda, soda lye, lye |
| CAS number: | 1310–73–2 |
| Melting point: | 318. 4°C |
| Boiling point: | 1390°C |
| Specific gravity: | 2.13 |
| Solubility: | Soluble in water, ethanol and glycerol; insoluble in acetone and ether |
| General characteristics: | White deliquescent solid |
Grades
- Diaphragm – standard grade caustic
- Membrane – high purity, low salt, and low iron
- Mercury cell – specialty, limited-quantity grade
Strengths
- 50% NaOH content is standard, and dilutions to a wide range of concentrations are available
- Custom blends are available with a variety of additives