Industry Sector


Total Companies


Est. Employment



Establishments primarily engaged in manufacturing alkalies and chlorine.


SIC Code 2812 - Alkalies and Chlorine is a final level code of the “Manufacturing” Division. There are 101 companies classified in this industry in the USA with an estimated employment of 273 people.

Industry Examples

Common types of examples within SIC Code 2812 - Alkalies and Chlorine are:

  • Alkalies, not produced at mines
  • Caustic potash
  • Caustic soda
  • Chlorine compressed or liquefied
  • Potassium carbonate
  • Potassium hydroxide
  • Sal soda (washing soda)
  • Soda ash not produced at mines
  • Sodium bicarbonate not produced at mines
  • Sodium carbonate (soda ash) not produced at mines
  • Sodium hydroxide (caustic soda)
  • Washing soda (sal soda)


For some business types, there may be a similar industry to SIC Code 2812 - Alkalies and Chlorine that is a better classification match.

Establishments primarily engaged in mining natural alkalies are classified in Mining, Industry 1474.

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Extended SIC Code Categories for SIC 2812

For business marketing and targeting, SIC Codes have been extended to provide more specific classifications within SIC Code 2812 – Alkalies and Chlorine. Extended SIC Codes are being continuously updated to reflect the current business environment.

6-digit SIC

  • 281201 Potash (manufacturers)
  • 281202 Alkalies (manufacturers)
  • 281203 Chlorine (manufacturers)
  • 281204 Soda Ash (manufacturers)
  • 281205 Soda Bicarbonate (manufacturers)
  • 281298 Alkalies & Chlorine (manufacturers)

7-digit SIC

  • 2812001 Alkalies & Chlorine (manufacturers)
  • 2812002 Alkalies (manufacturers)
  • 2812003 Potassium Hydroxide-Caustic Potash
  • 2812004 Sodium Hydroxide-Caustic Soda
  • 2812005 Potassium Carbonate
  • 2812006 Hydrated Sodium Carbonate -Sal Soda
  • 2812007 Soda Ash (manufacturers)
  • 2812008 Sodium Bicarbonate
  • 2812009 Chlorine (manufacturers)
  • 2812010 Potash (manufacturers)
  • 2812011 Soda Bicarbonate (manufacturers)

8-digit SIC

  • 28120000 Alkalies And Chlorine
  • 28120100 Alkalies
  • 28120101 Caustic Potash, Potassium Hydroxide
  • 28120102 Caustic Soda, Sodium Hydroxide
  • 28120103 Potassium Carbonate
  • 28120104 Sal Soda (washing Soda), Sodium Carbonate (hydrated)
  • 28120105 Soda Ash, Sodium Carbonate (anhydrous)
  • 28120106 Sodium Bicarbonate
  • 28129901 Chlorine, Compressed Or Liquefied