SIC Code 2819 — Industrial Inorganic Chemicals, Not Elsewhere Classified

4-digit industry in the 1987 Standard Industrial Classification — still requested by banks, insurers, SEC filings and legacy systems.

Code	2819
Title	Industrial Inorganic Chemicals, Not Elsewhere Classified
System	SIC 1987 (final edition — replaced by NAICS in 1997)

The SIC was last revised in 1987 and officially superseded by NAICS in 1997, but it never fully disappeared: the SEC still tags EDGAR filings with SIC codes, and many banks, insurers and legacy databases keep requesting it. That is why converting between the two systems is still routine work.

NAICS equivalents of SIC 2819

From the official U.S. Census concordance (1987 SIC → 2002 NAICS). Where the 2002 code no longer exists in NAICS 2022, the closest current code is shown.

NAICS 2002	Title (2002)	Current 2022 code
211112	Natural Gas Liquid Extraction	superseded — closest: 2111 Oil and Gas Extraction
325131	Inorganic Dye and Pigment Manufacturing	superseded — closest: 32513 Synthetic Dye and Pigment Manufacturing
325188	All Other Basic Inorganic Chemical Manufacturing	superseded — closest: 32518 Other Basic Inorganic Chemical Manufacturing
325998	All Other Miscellaneous Chemical Product and Preparation Manufacturing	325998 (same code)
331311	Alumina Refining	superseded — closest: 33131 Alumina and Aluminum Production and Processing

Other SIC codes in 28xx

• 2812 — Alkalies and Chlorine
• 2813 — Industrial Gases
• 2816 — Inorganic Pigments
• 2821 — Plastics Materials, Synthetic Resins, and Nonvulcanizable Elastomers
• 2822 — Synthetic Rubber (Vulcanizable Elastomers)
• 2823 — Cellulosic Manmade Fibers
• 2824 — Manmade Organic Fibers, Except Cellulosic
• 2833 — Medicinal Chemicals and Botanical Products
• 2834 — Pharmaceutical Preparations
• 2835 — In Vitro and In Vivo Diagnostic Substances
• 2836 — Biological Products, Except Diagnostic Substances
• 2841 — Soap and Other Detergents, Except Specialty Cleaners

Data: 1987 SIC titles (OSHA/Census) and official Census concordance — U.S. government works in the public domain (17 U.S.C. §105). Suggested reference, not an official determination.