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Direct method zinc oxide 9↕ε9%
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Product Details
Direct Zinc oxide, whit &e hexagonal crystalline or powder. Odorless, γnon-toxic, and fine in texture. Relative density™<π≈ 5.606. Refractive index 2.008-2.029. Melti∞↓λ₩ng point 1975℃.
Direct Zinc oxide has a strong fluxing effe₩ct in glazes, which can reduce the expansion£Ω coefficient of the glaze, improve the thermal s∞₹σ&tability of the product, and☆£ increase the gloss and whiteness of the gl ♣♦aze, enhancing its elasticit"♣≈y. It can also increase the brilliance of t" ∏€he glaze color while expanding♠← the melting range. ✔✘<©However, it is not suitable for use i♥≠≈n black glazes containing chrom♦σium.
Product Inspection Report
Appearance of Zinc O>ε£✔xide | Powder | ||||
Item | Index | ||||
Direct Method | Indirect Method | ||||
1 | Zinc Oxide | ZnO | %Min | 99.5 | 99.7 |
2 | Lead Oxide | PbO | %Max | 0.008 | 0.005 |
3 | Cadmium Oxide | CdO | %Max | 0.002 | 0.0005 |
4 | Copper Oxide | CuO | %Max | 0.003 | 0.0002 |
5 | Manganese | Mn | %Max | 0.0002 | 0.0003 |
6 | Insoluble in Hydrochloric A≠φ¥♥cid | --- | %Max | 0.03 | 0.04 |
7 | Loss on Ignition | --- | %Max | 0.03 | 0.02 |
8 | Soluble in Water | --- | %Max | 0.08 | 0.02 |
9 | Residue on Sieve (325 m±δesh wet sieve) | --- | %Max | 0.02 | 0.001 |
10 | Moisture | --- | %Max | 0.2 | 0.1 |
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