Zinc oxide occurs in nature as mineral zincite. It is the most important zinc compound and has numerous industrial applications. Zinc oxide is the pigment in white paints. It is used to make enamels, white printing inks, white glue, opaque glasses, rubber products and floor tiles. It is used in cosmetics, soaps, pharmaceuticals, dental cements, storage batteries, electrical equipment, and piezoelectric devices. Other applications are as a flame retardant, as a UV absorber in plastics, and a reagent in analytical chemistry. A major application of zinc oxide is in the preparation of most zinc salts. In medicine, the compound is used as an antiseptic, an astringent and a topical protectant.
Zinc oxide is added to paints as a pigment and mold inhibitor and is known as zinc white when it is used as an oil paint by artists. It is used for cosmetics (ointment to protect nose and lips from ultraviolet sunlight), as a seed treatment, and as a dietary supplement.Zinc oxide, ZnO, is a reactive white pigment prepared by vaporizing metallic zinc at a temperature of about 900°C in the presence of oxygen. As a pigment, ZnO is basic in nature and can react with certain types of acidic paint resins resulting in the formation of a brittle film on drying. Formation of such films leads to premature failure of paint. For this reason as well as because of its low RI,ZnO cannot compete for the hiding power of TiO2.
| ITEM | GB/T3185-92 | Q/NSD001--2007 | ||
| BA01-05(I) | theenterprise standard | |||
| Superior grade | A level | Superior grade | A level | |
| Zinc oxide % ≥ | 99.70 | 99.50 | 99.70 | 99.50 |
| Metal % ≤ | No | No | No | No |
| Lead monoxi de % ≤ | 0.037 | 0.05 | 0.037 | 0.05 |
| Manganeseoxide compound % ≤ | 0.0001 | 0.0001 | 0.0001 | 0.0001 |
| Copper oxide % ≤ | 0.0002 | 0.0004 | 0.0002 | 0.0004 |
| Hydroch loric acid insoluble substance % ≤ | 0.006 | 0.008 | 0.006 | 0.008 |
| Ignition decrement % ≤ | 0.2 | 0.2 | 0.2 | 0.2 |
| Trash(45um mesh) % ≤ | 0.10 | 0.15 | 0.10 | 0.15 |
| Water-soluble % ≤ | 0.10 | 0.15 | 0.10 | 0.15 |
| 105°CVolatile matter % ≤ | 0.3 | 0.4 | 0.3 | 0.4 |
| Ferric oxide % ≤ | - | - | 0.0009 | 0.0014 |
| Total sulfur (to SO2- counts) the content % ≤ | - | - | 0.003 | 0.001 |
| Lead content % ≤ | - | - | 0.005 | 0.003 |
| Cadmiu m content % ≤ | - | - | 0.0009 | 0.00 |
1. Used as a vulcanizing agent in rubber
2.Used as a melting agent and emulsion in the ceramic industry
3.Used as a nutritional supplement in food and feed
4. Used as a sunscreen in cosmetics
Q1:Are you a factory? Where are you located?
A: We are a professional manufacturer with more than 20 years production experience of composite materials, Our own factory locate in xingtai city, hebei province.
Q2:What's the MOQ?
A: Usually 1 Ton, depend on what products you need.
Q3:Package & Shipping.
A: Normal package:by carton, we accept OEM packing.
Q4:When can I offer?
A: We usually quote within 24 hours after we get your inquiry. If you are very urgent to get the price pls call us or tell us in your email , so that we can reply you priority.
Q5:How do you charge the sample fees?
A: If you need a samples from our stock, we can provide to you for free, but the free charge should be on your side. If you need a special size, We will charge the sample making fee which will be refund when you place an order.
Q6:What's your delivery time for production?
A:If we have stock , can delivery in 1-7 days ; if without the stock, need 5-30 days, depend on quantity.