Caustic soda
soda — highly dangerous substance (2nd hazard class), very much in demand both in industrial production and in everyday life. The mining industry, chemical and petrochemical industries, textile and paper industry, food industry and many others widely use sodium hydroxide (otherwise: caustic sodium, caustic). A characteristic feature is the strongest corrosive effect on organic substances. It is produced in powder or liquid form.
The reagent must be accompanied by a safety certificate indicating the manufacturer, hazard class, and components.
The common names "caustic soda" and "caustic soda" imply the same substance - NaOH alkali, which can be in the form of a solution or powder.
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Sodium oxide hydrate, depending on the form (liquid or solid):
very hygroscopic (solid form);
volatile (liquid);
toxic.
It should be stored in an airtight container. When dissolved in water, it emits a large amount of heat. Subject to mandatory certification - GOST r 55064-2012 - hard technical.