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2. Potassium metabisulfite - Wikipedia

   en.wikipedia.org/wiki/Potassium_metabisulfite

   Potassium metabisulfite, K 2 S 2 O 5, also known as potassium pyrosulfite, is a white crystalline powder with a pungent odour. It is mainly used as an antioxidant or chemical sterilant . [ 1 ] As a disulfite , it is chemically very similar to sodium metabisulfite , with which it is sometimes used interchangeably.

3. Preservative - Wikipedia

   en.wikipedia.org/wiki/Preservative

   A preservative is a substance or a chemical that is added to products such as food products, beverages, pharmaceutical drugs, paints, biological samples, cosmetics, wood, and many other products to prevent decomposition by microbial growth or by undesirable chemical changes. In general, preservation is implemented in two modes, chemical and ...

4. Wood preservation - Wikipedia

   en.wikipedia.org/wiki/Wood_preservation

   Creosote was the first wood preservative to gain industrial importance more than 150 years ago and it is still widely used today for protection of industrial timber components where long service life is essential. Creosote is a tar-based preservative that is commonly used for utility poles and railroad ties or sleepers.

5. Chromated copper arsenate - Wikipedia

   en.wikipedia.org/wiki/Chromated_copper_arsenate

   Chromated copper arsenate (CCA) is a wood preservative containing compounds of chromium, copper, and arsenic, in various proportions. It is used to impregnate timber and other wood products, especially those intended for outdoor use, in order to protect them from attack by microbes and insects. Like other copper-based wood preservatives, it ...

6. Embalming chemicals - Wikipedia

   en.wikipedia.org/wiki/Embalming_chemicals

   This is the reason for usage of formaldehyde as a preservative, as it thus prevents cellular decay and renders the tissue unsuitable for use as a nutrient source for bacteria. Formaldehyde is carcinogenic in humans and animals at excessive levels [ 6 ] [ 7 ] because the cross-linking can cause DNA to keep cells from halting the replication process.