Description

Calcium Nitrate Tetrahydrate is a highly soluble inorganic salt that serves as a vital source of both calcium and nitrate nitrogen. This dual-nutrient profile makes it an essential component in formulations requiring rapid nutrient delivery and high bioavailability. It is a critical raw material for manufacturers in the agriculture, wastewater treatment, and construction industries, where its strong oxidizing properties and solubility are key performance drivers.

Application

• Fertilizer & Horticulture: A premium component in water-soluble fertilizers and fertigation systems for greenhouse and hydroponic crops, providing readily available calcium and nitrogen.
• Concrete & Construction: Acts as a highly effective set accelerator and anti-freeze admixture in ready-mix concrete, especially for cold-weather concreting.
• Wastewater Treatment: Used as an oxygen source in biological wastewater treatment processes and for odor control in municipal and industrial systems.
• Latex & Emulsion Production: Serves as a coagulant and electrolyte in the manufacturing of synthetic latex, rubber, and other polymer emulsions.
• Explosives & Pyrotechnics: Utilized as an oxidizing agent in the production of explosives, matches, and specialty pyrotechnic compositions.
• Refrigeration: Employed as a key ingredient in endothermic cooling mixtures and phase-change materials.
• Food & Pharmaceutical: Used in certain food preservation processes and as a calcium source in specific pharmaceutical preparations (subject to appropriate grade specifications).

Basic Information

Product Name	Calcium Nitrate Tetrahydrate
CAS No.	39368-85-9
Molecular Formula	Ca(NO3)2 · 4H2O
Molecular Weight	236.15 g/mol
Synonyms	Calcium Dinitrate Tetrahydrate; Nitric Acid, Calcium Salt, Tetrahydrate; Norwegian Saltpeter; Lime Nitrate; Norge Saltpeter; Calcium(II) Nitrate Tetrahydrate; CALCIUM NITRATE 4-HYDRATE; Calcium Nitrogen Oxide Tetrahydrate
EINECS	233-332-1 (for the anhydrous form)

Quality Control

Our Calcium Nitrate Tetrahydrate is produced under a stringent quality management system. Each batch is tested against rigorous in-house specifications to ensure consistency, purity, and performance. While we offer technical and agricultural grades, all products are supported by a comprehensive Certificate of Analysis (COA) detailing key parameters such as assay, heavy metal content, and insoluble matter. We adhere to relevant global standards, including REACH compliance for the European market.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials. Due to its hygroscopic (moisture-sensitive) nature, containers must be kept tightly sealed after opening to prevent caking and moisture absorption. As a strong oxidizer, store separately from combustible, organic, or reducing agents. Recommended storage temperature: 15-25°C.

Specification

Item	Specification
Appearance	White crystalline solid
Identification (IR)	Conforms
Assay (Ca(NO3)2 · 4H2O)	≥ 99.0%
Calcium (Ca) Content	≥ 16.0%
Nitrate Nitrogen (N) Content	≥ 11.0%
pH (5% Solution)	5.0 - 7.0
Water Insoluble Matter	≤ 0.05%
Heavy Metals (as Pb)	≤ 10 ppm
Chloride (Cl)	≤ 0.005%
Sulfate (SO4)	≤ 0.05%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.