Calcium nitrate tetrahydrate

Calcium nitrate tetrahydrate (CAS 13477-34-4) is a water-soluble calcium and nitrogen source used across agriculture, construction, and water treatment industries. It delivers both calcium and nitrate simultaneously. This makes it a preferred inorganic salt where dual nutrient or ionic activity is required in solution. In agriculture, it functions as a fully water-soluble fertilizer for fertigation systems and foliar sprays.

It supplies nitrate nitrogen and calcium to crops simultaneously. Concrete and construction admixture producers use it as an accelerating agent in cold-weather concreting to shorten set times. The product supports early strength development in various building materials. In wastewater treatment, it acts as an electron acceptor to suppress hydrogen sulfide generation in anaerobic conditions.

This application is vital within sewer networks and treatment facilities. Pulp and paper operations apply it for pH regulation and as a process aid where controlled ionic activity is needed. The chemical is supplied as white granules, prills, or flakes, with liquid solution grades also available. Standard commercial grades include technical grade and fertilizer grade for industrial use.

Purity levels typically range from 99% on a dry basis for high-quality applications. Bulk supply is common for agricultural buyers, with intermediate packaging available for specialty or laboratory use.