Precision at its Finest: Elevate Your Lab Experiments with Global Lab Supplies
Magnesia Cupel
Cupel is a shallow, porous crucible with approximately 96% magnesia. It is especially used to separate gold, silver, and precious metals from lead buckles in the process of Pb-Fire assay. By using high-quality raw materials and scientific formulas, GLS’s fire assay magnesia cupel has a smooth surface, high mechanical strength, and will not crack and pit during high-temperature cupellation.
Magnesia Cupel
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• Cupels absorb litharge approximately 70% of their weight, Reduced tendency to freeze.
• Made of high grade Magnesium Oxide and other special binding materials.
• Thoroughly tested at our lab for quality, Consistently low losses.
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Pulverizing bowl: also called pulverising mill grinding bowl, pulverizer mill bowl. It is a grinder that grinds coarse material into fine powder. When working, put the grinding bowl into the laboratory sample pulverizer or vibration grinder card slot. The motor drives the grinding bowl to eccentrically vibrate. After 2-6 minutes of work, the material can reach 80-300 mesh for testing.
GLS’s crucible tumbler is a new type of forward and reverse rotating mixing equipment. The crucible tumbler is mainly used for batch mixing of fire assay mineral samples and fluxes. The device can mix up to 50 fire assay crucibles at a time. This significantly improves the efficiency of laboratory sample preparation and reduces manual operations. It is one of the necessary equipment for fire assay laboratory.
The lengthy time required for fire assaying of gold, silver and precious metals can often be compensated for by the simultaneous analysis of a large number of samples. A typical fire assay laboratory is usually equipped with several furnaces and cupellation furnaces, each capable of collecting multiple samples. Therefore, GLS’s Multiple Sample Load Forklift, Crucible Tumbler and other equipment have greatly improved the efficiency of laboratory sample preparation and load-and-unload.
The maximum temperature of the Muffle Furnace 100 places muffle furnace can be adjusted up to 1500°C. The heating speed is very fast by silicon-molybdenum elements. On the lifting door of the high-temperature muffle furnace, there is also an observation window for watching the cupellation of lead buttons. Observation windows are equipped with fire-resistant glass, which can protect personnel from high-temperature radiation.
GLS has various shapes of horseshoe-shaped furnaces, furnace tubes, electric furnace tile plates, rails, large-span muffle furnaces, etc. Used in various heat treatment furnaces, such as muffle furnaces, enamel sintering furnaces, diffusion furnaces, slats of various kilns, flameproof materials, etc.
Zirconium is our most effective crucible material for fusions using sodium carbonate or sodium peroxide. It is an excellent low-cost replacement for platinum. And, based on an average of 100 fusions per crucible, it is more cost effective than less expensive porcelain or steel crucibles.
Other advantages of zirconium are its complete resistance to the action of most solvents of all concentrations such as nitric, hydrochloric, sulfuric and perchloric acids.
This allows the fusions to be dissolved out of the crucible completely with little or no contamination of the sample. Alkaline solvents such as ammonium hydroxide, acetate sulfide, carbonate and (Na, K) hydroxide, sulfide, carbonate and cyanide are also without effect.
Safety goggles can provide special eye protection for specific work and environments. Safety goggles are your ideal choice when you need to minimize the risk of liquid splash, corrosive vapor, air dust and solid particles’ high-speed impact. Safety goggles are mainly divided into three types: anti-solid debris, anti-chemical solution and anti-radiation.
Zirconium exhibits superb corrosion resistance in most organic and inorganic acids, salt solutions, strong alkalis and a few molten salts.
The passive oxide film (corrosion barrier) is stable in both reducing and oxidizing conditions. Zirconium is excellent in both acid and base solutions.
The temperature limit for use in air is
about 450˚C to 500˚C.
GLS high-performance Pulverizer Mill, designed for efficient sample preparation. This industrial-grade equipment utilizes electric power to drive the mill platform, producing the desired mesh sample. With its robust construction and advanced features, our Pulverizer Mill is an ideal solution for various laboratory and industrial applications.