LARK Glass Microfibre thimbles are made from High purity Borosilicate glass fibers. They are completely free from binders and additives and hence can be used up to a temperature of 500 deg centigrade. They are used in solvent extractions when the solvent is incompatible with cellulose thimbles. One of its major use is in stack monitoring because of its retention of 0.7micron its typical thickness is 2.0mm. These thimbles are available in a wide range of sizes to suit your application. They fit standard soxhlet extractors.
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