Zinc Oxide USP
Zinc Oxide USP is an inorganic white powder composed primarily of ZnO. It is widely used as a functional additive in rubber, ceramics, glass, paints, and chemical industries. Known for its excellent chemical stability, UV-absorbing capability, and reactivity with acids and alkalis, this grade is tailored for industrial applications where high purity is not mandatory but consistent quality and performance are essential.
Zinc Oxide USP
Primary Uses
Rubber Industry
- Activator in Vulcanization: Acts as an activator with stearic acid in the vulcanization of rubber, improving elasticity, tensile strength, and aging resistance.
- Reinforcing Agent: Enhances mechanical properties and abrasion resistance of rubber compounds.
- Heat Stabilizer: Helps protect rubber from heat degradation during processing and use.
Ceramics Industry
- Glazing Agent: Used in ceramic glazes to promote gloss and opacity.
- Fluxing Agent: Lowers melting point and improves sintering of ceramics and enamels.
Glass Manufacturing
- Clarifying Agent: Improves transparency and chemical resistance in specialty glass formulations.
- UV Filter: Used in optical and UV-blocking glass materials.
Paints & Coatings
- Pigment & UV Blocker: Acts as a white pigment and UV absorber to protect coatings from degradation.
- Mildew and Corrosion Resistance: Enhances anti-fungal and anti-corrosive properties in protective paints.
Chemical Industry
- Intermediate: Serves as a starting material for producing zinc salts (e.g., zinc acetate, zinc carbonate).
- Catalyst Support: Used in petrochemical and fine chemical synthesis as a catalyst or catalyst carrier.
Secondary Uses
Adhesives & Sealants
- Thickening and Opacity Enhancer: Used in select formulations to improve opacity and viscosity control.
Metallurgy
- Zinc Source in Alloying: Occasionally added to aluminum and brass to modify properties or for galvanizing baths.
Fertilizers
- Micronutrient Additive (Industrial Use): Used in technical-grade agricultural formulations to address zinc deficiency in soils.
Lubricants & Greases
- Additive: Acts as an anti-wear agent and heat stabilizer in specialized greases and lubricants.
Printing Inks & Plastics
- Pigment & Heat Stabilizer: Offers brightness and thermal stability in inks and plastics, particularly PVC.
Basic Identification Attributes
- Chemical Name (IUPAC): Zinc oxide
- Common/Trade Name: Zinc Oxide Tech Grade
- CAS Number: 1314-13-2
- HS Code: 2817.00.00
- Synonyms: ZnO, calamine, zinc white
Physical & Chemical Properties
- Physical State: Fine white powder
- Color & Odor: White; odorless
- Melting Point: ~1,975 °C
- Boiling Point: Sublimes at ~2,360 °C
- Solubility: Insoluble in water; soluble in acids and alkalis
- Density: 5.6 g/cm³
- Surface Area: Varies by grade; typically ~4–20 m²/g (BET)
Safety & Hazard Attributes
- GHS Classification:
- Not classified as hazardous under normal conditions
- May cause mild skin/eye irritation
- Harmful to aquatic life in large quantities
- Toxicity: Low acute toxicity; avoid inhalation of fine particles
- Exposure Limits:
- ACGIH TLV (ZnO fume): 2 mg/m³ (TWA), 10 mg/m³ (STEL)
Storage & Handling Attributes
- Storage Conditions: Store in a cool, dry, well-ventilated area, away from acids
- Container Type: 25 kg multi-ply paper or HDPE bags
- Shelf Life: Up to 36 months in sealed packaging under recommended storage
- Handling Precautions: Avoid inhalation of dust; use PPE during handling
Regulatory & Compliance Attributes
- Complies with REACH, OSHA, TSCA, and other global chemical safety regulations
- Listed on international chemical inventories (EINECS, DSL, AICS, etc.)
- Manufactured under ISO 9001 and ISO 14001 quality and environmental standards
- RoHS compliant for use in electronics and coatings (when applicable)
- Not intended for pharmaceutical or food use unless stated
Environmental & Health Impact
- Biodegradability: Not applicable (inorganic)
- Ecotoxicity: Harmful to aquatic life in concentrated discharge
- Bioaccumulation: Negligible
- Environmental Note: Dispose of waste in accordance with local environmental laws
Safety Handling Precautions
- PPE Required: Gloves, goggles, dust mask/respirator
- Handling Guidelines: Minimize dust generation; use local exhaust ventilation
- Storage Measures: Keep containers sealed and clearly labeled
First Aid Measures
- Inhalation: Move to fresh air; seek medical advice if symptoms persist
- Skin Contact: Wash with soap and water
- Eye Contact: Rinse cautiously with water for 15 minutes
- Ingestion: Rinse mouth; seek medical attention if large amounts are ingested
Firefighting Measures
- Fire Hazards: Non-flammable
- Extinguishing Media: Use appropriate media for surrounding materials
- Hazardous Combustion Products: Zinc oxide fumes (at extremely high temperatures)

Preservatives(food)
Flavor Enhancers
Acidulants
Sweeteners
Antioxidants
Colorants(food)
Nutraceutical Ingredients (food)
Nutrient Supplements
Emulsifiers
Collectors
Dust Suppressants
Explosives and Blasting Agents
Flocculants and Coagulants
Frothers
Leaching Agents
pH Modifiers
Precious Metal Extraction Agents
Antioxidants(plastic)
Colorants (Pigments, Dyes)
Fillers and Reinforcements
Flame Retardants
Monomers
Plasticizers
Polymerization Initiators
Stabilizers (UV, Heat)
Antifoaming Agents
Chelating Agents
Coagulants and Flocculants
Corrosion Inhibitors
Disinfectants and Biocides
Oxidizing Agents
pH Adjusters
Scale Inhibitors( water)
Antioxidants(cosmetic)
Emollients
Fragrances and Essential Oils
Humectants
Preservatives
Surfactants(cosmetic)
Thickeners
UV Filters
Fertilizers
Soil Conditioners
Plant Growth Regulators
Animal Feed Additives
Biostimulants
Pesticides (Herbicides, Insecticides, Fungicides)
Active Pharmaceutical Ingredients (APIs)
Excipients
Solvents(pharmaceutical)
Antibiotics
Antiseptics and Disinfectants
Vaccine Adjuvants
Nutraceutical Ingredients (pharmaceutical)
Analgesics & Antipyretics
Analytical Reagents
Solvents(lab)
Chromatography Chemicals
Spectroscopy Reagents
microbiology-and-cell-culture-reagents
Molecular Biology Reagents
Biochemical Reagents
Inorganic and Organic Standards
Laboratory Safety Chemicals
Specialty Laboratory Chemicals(Special Laboratory Equipment)
Demulsifiers
Hydraulic Fracturing Fluids
Scale Inhibitors(oil)
Surfactants(oil)
Drilling Fluids
Dyes and Pigments
Bleaching Agents
Softening Agents
Finishing Agents
Antistatic Agents
Admixtures
Waterproofing Agents
Sealants and Adhesives
Curing Compounds
Concrete Repair Chemicals
Anti-Corrosion Coatings
Surfactants(cleaning)
Builders
Enzymes
Solvents (Cleaning)
Fragrances
Electronic Chemicals
Catalysts
Lubricants
Photographic Chemicals
Refrigerants
Automotive chemicals
Pyrotechnic Chemicals
Biodegradable Surfactants
Bio-based Solvents
Renewable Polymers
Carbon Capture Chemicals
Wastewater Treatment Chemicals
Pigments
Solvents(paint)
Specialty Coatings
Binders/Resins
Additives
Driers
Anti-Corrosion Agents
Functional Coatings
Application-Specific Coatings
Fresh Herbs
Ground Spices
Whole Spices
Spice Blends
Dried Herbs
Leavening Agents
Dough Conditioners
Flour Treatments
Fat Replacers
Decoratives
Preservatives(baking)
Plasticizers & Softeners
Reinforcing Agents
Adhesion Promoters
Vulcanizing Agents
Antidegradants
Blowing Agents
Fillers & Extenders
Accelerators & Retarders