Qingdao Hongxu Filter Aid Co.,Ltd is a professional enterprise has been specialized in the R&D, manufacture and export of diatomaceous earth,diatomite filter aid,activated bleaching earth.

The products are made by choosing superior quality diatomite from CHANGBAI Mountain as its raw material, and adopting advanced processing technology such as material dynamic flow, coal gas roast, closed gas transportation, multi-functional processing and digital monitor. The company has certified with ISO9001:2000 quality system. Its series products are divided into three categories and more than twenty grades which involve in each and every field the diatomaceous products being used.

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SPECIFICATION OF NATUAL DE

PHYSICAL AND CHEMICAL PROPERTIES

Structure	Natual
Color	Off White
G.E. Brightness	74
Sieve Analysis (Tyler)	?/span>
% +150 mesh (>105 microns)	?/span>
% +325 mesh (> 44 microns)	?/span>
Median Particle Diameter (microns)	15
pH (10% slurry	7-8
Free Moisture ( % H2O)	3--5
Density	(g/l)
Wet Bulk	350-360
Dry Bulk	190-210-
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CHEMICAL ANALYSIS