Chromite Powder – Special Colorant for Beer Bottles
Common beer bottles on the market fall into two major categories: olive green beer bottles and amber/tawny beer bottles. Both colors block ultraviolet rays and prevent beer deterioration caused by photo-oxidation. Chromite powder is one of the most widely adopted colorants for producing olive green and amber/tawny glass bottles. Details of our chromite powder are listed below:
Core Colorant for Olive Green & Amber/Tawny Beer Bottles
Chromite Ore Powder / Chromite Sand Powder
Alternative names: South African chromite powder, 46% chromite powder, high-chromium low-silicon ore powder
English synonyms: chromite flour, chromite powder, iron chromite flour, iron chromite powder
Standard Specifications
Physical Properties & Chemical Composition
| Physical Properties | Index Value | Chemical Composition | Content Requirement |
|---|---|---|---|
| pH Value | 7–9 | Cr₂O₃ | ≥46.0% |
| Color | Jet black | SiO₂ | ≤1.0% |
| Acid Consumption Value | ≤2 mL | Fe₂O₃ | ≤26.5% |
| Mud Content | ≤0.1% | CaO | ≤0.30% |
| Bulk Density | 2.5–3.0 g/cm³ | MgO | ≤10.0% |
| True Density | 4.0–4.8 g/cm³ | Al₂O₃ | ≤15.5% |
| Moisture Content | ≤0.1% | Phosphorus (P) | ≤0.003% |
| Sintering Temperature | ≥1800 °C | Sulfur (S) | ≤0.003% |
| Packing Density | 2.6 g/cm³ | Cr/Fe Ratio | 1.55:1 |
| Free Acid Content | 0 | Melting Point | ≥2180 °C |
Coloring Mechanism of Chromite Powder
The chemical composition of chromite powder is FeCr₂O₄. Color is rendered by trivalent chromium ions (Cr³⁺).
Recommended Dosage in Glass Production
Adding proportion of chromite powder in glass batch materials: 0.8% ~ 1.5%.
Conventional Particle Size Grades of Chromite Powder for Beer Bottles
Available mesh sizes: 200#, 325#, 400#, 500#, 600#, 800#, 1000#, 1200#, 1500#, 2000#, 2500#
Sieve pass rate guarantee: ≥90%
Actual tested pass rate: 95%–100%
Supplier Information
Chromite Powder for Beer Bottle Coloring | Zhengzhou Haixu abrasives Co., Ltd.
Contact: Cassiel Wang
Phone / WeChat/Whatsapp:+86 18039336686
Email: [email protected]