85mm Diameter Refractory Fire Assay Crucible Anti High Temperature
Refractory Clay Fire Assay Crucible
Some assay methods are suitable for raw materials; others are more appropriate for finished goods. Raw precious metals (bullion) are assayed by an assay office. Silver is assayed by titration, gold by cupellationand platinum by inductively coupled plasma optical emission spectrometry (ICP OES).
Features:
1. Long lasting,can be used many times;
2. High mechanical strength designed to withstand severe thermal shocks special formula,curing and pressing process;
3. Good thermal shock resistance;
4. No hanging residue, impermeable,the export series can use 3-5 times,it is the superduper container for fire assay.
Chemical Composition
| SiO2 | 38%-56% |
| Al2O3 | 45%-55% |
| Fe2O3 | ≤1% |
| TiO2 | 0.47% |
| CaO | 1.28% |
| MgO | 0.34% |
| K2O | 0.61% |
| Na2O | 0.39% |
| L.O.l(loss on ignition) | 0.21% |
Size detail:
Top diameter 85mm; Bottom diameter 55mm;High 150mm.
Product Specification
| OD(mm) | ID(mm) | Outside height(mm) | Inside height(mm) | Bottom OD(mm) | Capacity |
| 80 | 70 | 80 | 66 | 55 | 165ml |
| 90 | 78 | 105 | 85 | 55 | 245ml |
| 93 | 80 | 115 | 95 | 55 | 295ml |
| 95 | 80 | 125 | 105 | 55 | 345ml |
| 93 | 82 | 135 | 110 | 55 | 380ml |
| 93 | 82 | 135 | 115 | 55 | 370ml |
| 90 | 80 | 155 | 136 | 55 | 380ml |
| 95 | 83 | 140 | 118 | 48 | 390ml |
| 80 | 62 | 130 | 110 | 42 | 310ml |
| 90 | 82 | 132 | 120 | 55 | 330ml |
| 88 | 80 | 132 | 118 | 50 | 325ml |
| 108 | 90 | 140 | 125 | 55 | 630ml |
| 110 | 95 | 155 | 135 | 55 | 710ml |
| 105 | 95 | 155 | 132 | 55 | 680ml |
| 105 | 95 | 145 | 109 | 55 | 650ml |
| 90 | 84 | 165 | 150 | 55 | 430ml |
| 120 | 110 | 160 | 140 | 75 | 750ml |
Notes:
1. Refractoriness:1650 centigrade degrees;
2. Refractoriness under load:1420 centigrade degrees;
3. We can supply kinds of fire assay crucibles export level,customize was acceptable, samples and performance requirement.
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