Description

Zinc Hydroxide CAS NO 20427-58-1 is an important inorganic compound widely utilized as a versatile chemical intermediate and functional additive. Its primary value lies in its reactivity as a precursor to other zinc compounds and its utility as a mild base or absorbent in various industrial processes. This product is essential for manufacturers in the rubber, pharmaceutical, and personal care industries, where it serves as an activator, neutralizing agent, or raw material. We supply high-purity grades to meet the stringent requirements of diverse global applications.

Application

• Rubber Vulcanization: Acts as an activator to accelerate the sulfur vulcanization process in the production of tires, hoses, and other rubber goods.
• Pharmaceutical Synthesis: Serves as a precursor in the manufacture of zinc oxide and other zinc salts used in topical ointments, lotions, and dietary supplements.
• Personal Care Products: Used as a pH adjuster, opacifying agent, and absorbent in deodorants, creams, and cosmetic formulations.
• Chemical Manufacturing: A key intermediate for producing other zinc compounds like zinc stearate, zinc sulfate, and zinc phosphate.
• Wastewater Treatment: Employed as a precipitating agent to remove heavy metals and phosphates from industrial effluent.
• Flame Retardant Synergist: Used in polymer compositions to enhance the effectiveness of halogen-based flame retardants.
• Ceramics & Glass: Functions as a additive to modify thermal and optical properties in specialty glass and ceramic glazes.
• Agricultural Chemicals: Incorporated into fungicides and micronutrient fertilizers as a source of bioavailable zinc.

Basic Information

Product Name	Zinc Hydroxide
CAS No.	20427-58-1
Molecular Formula	Zn(OH)2
Molecular Weight	99.424 g/mol
Synonyms	Zinc dihydroxide; Zinc hydrate; Zinc(II) hydroxide; Hydroxyzinc; Zinc hydroxide (Zn(OH)2); Zincoid; Zinc white (related); Zincate(2-), dihydroxy-
EINECS	243-814-3

Quality Control

Our Zinc Hydroxide is produced under a strict quality management system to ensure batch-to-batch consistency and high purity. We offer various grades, including technical and high-purity, with specifications tailored to meet the demands of rubber, pharmaceutical, and chemical synthesis applications. Certificates of Analysis (COA) documenting key parameters such as assay, heavy metal content, and loss on drying are provided with every shipment to guarantee compliance with your specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive). Keep away from strong acids and strong oxidizing agents.

Specification

Item	Specification
Appearance	White amorphous powder
Identification (IR)	Conforms
Assay (as Zn(OH)2)	≥ 96.0 %
Loss on Drying	≤ 2.0 %
Chloride (Cl)	≤ 0.01 %
Sulfate (SO4)	≤ 0.02 %
Heavy Metals (as Pb)	≤ 10 ppm
Iron (Fe)	≤ 20 ppm
Lead (Pb)	≤ 5 ppm
Cadmium (Cd)	≤ 2 ppm
Particle Size (D50)	Contact for details

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