Zinc Sulphate Crystal

About Zinc Sulphate Crystal

Zinc Sulphate Crystals Technical Description

Product Name: Zinc Sulphate Crystals
Chemical Name: Zinc Sulphate Heptahydrate
Chemical Formula: ZnSO7HO
Molecular Weight: 287.54 g/mol
CAS Number: 7446-20-0
EINECS No.: 231-793-3

Physical and Chemical Properties

• Appearance: White to colorless crystalline solid

• Odor: Odorless

• Taste: Astringent, metallic

• Solubility: Freely soluble in water; insoluble in alcohol

• pH (5% solution): 4.0 6.0

• Density: ~1.97 g/cm

• Melting Point: Decomposes at ~100C (loses water of crystallization)

• Stability: Stable under normal storage conditions; hygroscopic in nature

Chemical Characteristics

• Zinc Sulphate Crystals are an inorganic salt formed by the reaction of zinc oxide or zinc metal with sulphuric acid.

• Exhibits good chemical stability and high water solubility, making it suitable for liquid and solid formulations.

• Acts as a source of bioavailable zinc ions (Zn).

Typical Specifications

• Assay (as ZnSO7HO): 98.0%

• Zinc (Zn) Content: ~2122%

• Sulphate (SO): ~3435%

• Insoluble Matter: 0.05%

• Heavy Metals (as Pb): 10 ppm (grade dependent)

Applications

• Agriculture: Micronutrient fertilizer for zinc-deficient soils and crops

• Pharmaceuticals: Used in dietary supplements and medicinal formulations (pharma grade)

• Animal Feed: Zinc supplement for livestock nutrition

• Water Treatment: Coagulant and algae control agent

• Chemical Industry: Raw material in the manufacture of other zinc compounds

• Textiles & Leather: Mordant and processing agent

Packaging and Storage

• Packaging: HDPE bags, woven sacks with inner liners, or drums (25 kg / 50 kg)

• Storage Conditions: Store in a cool, dry, well-ventilated area; protect from moisture

• Shelf Life: 23 years under recommended storage conditions

Safety and Handling

• Avoid inhalation of dust and contact with eyes or skin.

• Use appropriate PPE (gloves, goggles, dust mask).

• Not classified as flammable; may cause irritation on prolonged exposure.