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ASPAcid & Sulphur Products

Acid & Sulphur Products (ASP)

Chemtrade’s Acid & Sulphur Products segment is among North America’s largest suppliers of industrial sulphuric acid, including Regen Acid recovered through regeneration service agreements with the petroleum industry. Chemtrade is also the leading North American producer of UltraPure Sulphuric Acid — a critical process chemical for the electronics and semiconductor manufacturing industries, sectors that continue to drive significant global capital investment.

The ASP segment operates an extensive manufacturing, regeneration, and marketing network, supplying essential sulphur-based products to a broad range of industrial customers across North America. The segment also includes Sodium Nitrite, which is used in a wide range of industrial processes and food preservation. Chemtrade is the only North American manufacturer of sodium nitrite as a primary product.

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Sodium Nitrite – Industrial/Municipal

Sodium Nitrite – Industrial/Municipal

Sodium Nitrite, chemical formula NaNO2, is a pale straw-colored material that is highly soluble in water. Sodium Nitrite is used in many industrial applications including the manufacturing of diazo dyes, and other organic compounds used in the manufacture of organic pigments for the paint, dye and printing ink industries. In metal processing, it is used in phosphatizing and detinning applications. As a molten salt bath, it is used in heat treating of metal parts in the automotive and aircraft industries and as a high temperature heat-transfer medium. It is also used in the manufacture of synthetic rubbers and rubber chemicals. Due to its anti-corrosion properties, Sodium Nitrite solution is also used as a heat transfer fluid in Thermal Energy Storage units for large air-conditioning or process cooling applications.

Sodium Nitrite Technical Solution / GenClear™ N is a sodium nitrite/nitrate solution with a relatively high concentration of sodium nitrate. This high nitrate content allows GenClear™ N to be used to control odours and corrosion caused by hydrogen sulphide (H2S) in wastewater systems. It also has applications as a low temperature thermal fluid in large industrial chiller and stratified thermal storage systems. GenClear™ N controls H2S throughout a system from relatively few feed points by providing a food source which is consumed in a preferred metabolic pathway by bacteria over the reduction of sulphur, hence eliminating the formation of H2S.

Chemtrade produces a variety of Sodium Nitrite products, available as a dry product or solution. Dry product is available as a High Purity grade in granular or flake form, and as Super Free-Flowing Technical Grade in granular form. We offer a technical and 40% solution.

For information about Chemtrade’s Super Free-Flowing Food Grade Sodium Nitrite, please see here.

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Safety Data Sheets (SDS) for Chemtrade products can be found here.