Zinc oxide BP
Calamine - 99% min
| Code | Pack Size | Price | |
|---|---|---|---|
| 233C1 | 250g | £8.49 | Add to Cart |
ZINC OXIDE BP grade
Specification:
- Other Names: Zinc Oxide, Zinc white, Calamine, zincite
- CAS No: 1314–13–2
- EINECS No: 215–222–5
- Formula: ZnO
- Molar mass: 81.41 g/mol
- Assay: 98–100%
- Physical state: white powder
- Specific gravity: 5.61 g/cm3
- Melting Point: 1975 oC decomposes
- Boiling Point: 2360 oC
- Solubility: 0.16 mg/100 mL (30 oC)
Zinc Oxide ( ZnO ) occurs as white powder known as zinc white or as the mineral zincite.
Zinc oxide is an amphoteric oxide. It is only very slightly soluble in water and alcohol, but it is soluble in most acids such as hydrochloric acid or nitric acid. When it reacts with phosphoric acid it produces hard cement like compounds.
The powder is widely used as an additive into numerous materials and products including plastics, ceramics, glass, cement, rubber (e.g., car tyres), lubricants, paints, ointments, adhesives, sealants, pigments, batteries, ferrites, fire retardants, first aid tapes, etc.
Because of its large direct band gap (3.3 eV) at room temperature zinc oxide offers many advantages with regards its electronic properties. These include higher breakdown voltages, ability to sustain large electric fields, lower electric noise, and high-temperature and high-power operation.
Uses for Zinc Oxide / ZnO
- Used with stearic acid to activate vulcanisation in the rubber industry.
- Used in the concrete industry to improve processing time.
- When added to concrete it improves the concretes resistance to water.
- Used to make calamine lotion.
- Used in a wide range of cosmetic and skin care products.
- In cosmetic and skin care products, titanium dioxide is used as a pigment, sunscreen and a thickener.
- An important ingredient in suncreams.
- It is used in cigarette filters to remove harmful components.
- Used as a pigment in coatings and paints.
- In the electronics industry.
Product Specification
| Product: | Zinc Oxide BP |
|---|---|
| Cat.No: | A9842 |
| ZnO on dry sample | 99.9% |
| Pb | 0.002% |
| Cu | 0.0001% |
| Cd | 0.0001% |
| Fe | 0.002% |
| Ci | not detected |
| S | not detected |
| Insoluble HCI | not detected |
| Water soluble salts | 0.02% |
| Ignition loss (800oC) | 0 |
