Chemical name:

Sodium hydroxide, solid

Regulatory status:

Caustic Soda PF meets the requirements of the current Ph. Eur. monograph Sodium Hydroxide


chloralkali, raw materials and intermediates

Markets and applications:



disinfectants and biocides, solubilizers




PCC Rokita SA Chlorine Business Unit

CAS No.:



Sodium hydroxide in solid form, also called caustic soda, is an inorganic chemical compound belonging to the strongest alkali. In solid form, it is a white substance with crystalline appearance (flakes). It has hygroscopic properties. Sodium hydroxide in the PCC Group is produced in the process  of membrane electrolysis. This product is characterised by high quality and purity, which confirms compliance with the latest edition of European Pharmacopoeia, which defines basic quality requirements and test methods for pharmaceutical raw materials, among others.

Sodium hydroxide of pharmaceutical quality is an indispensable intermediate in the manufacture of a wide range of pharmaceutical products. Primarily used in the production of anti-influenza medicaments as a sodium carrier, e.g. in the production of polopyrin.

Used in the production of salicylic acid and sulfonamides. Sodium hydroxide is used in the production of sodium ascorbate – an alternative to vitamin C as the sodium salt of ascorbic acid. Obtained by neutralizing ascorbic acid with sodium hydroxide.

Caustic soda in pharmaceutical quality is also necessary in the production of iodoform. It is obtained from acetone or ethyl alcohol treated with iodine dissolved in sodium hydroxide as a result of the so-called iodoform reaction.Sodium hydroxide is used as an auxiliary in the production of ointments and medicated creams for external use. Caustic soda in the form of an aqueous solution is used to neutralize the carboxylic groups, and thus to the cross-linking of gelling agents, e.g. polyacrylic acids in therapeutic gels. This increases the pharmaceutical availability of active ingredients in hydrogel preparations.

Sodium hydroxide is successfully used in pharmaceutical industry.It can also be used as a raw material (sodium carrier) in various kinds of syntheses in the pharmaceutical industry (including in the production of polopyrine, salicylic acid, sulfanilamides).

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Properties and applications:

  • meets the requirements of the latest edition of European Pharmacopoeia
  • the production process fulfils Kosher, Halal, GMO, TSE / BSE requirements

Alternative names:

Show alternative names
Sodium hydroxide; caustic soda; Caustic Soda NaOH; caustic soda, solid NaOH; Natrium hydroxid; Sodium hydrate; Sodium Hydroxide; Caustic soda 98%; (Hide)


caustic soda flakes pharma grade caustic soda pharma sodium hydroxide pharmaceutical grade pharmaceutical grade caustic soda sodium hydroxide pharmaceutical grade
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