Model Number

RS900,FW 13

Qingdao Hongxu Filter Aid Co.,Ltd, supplies diatomaceous earth (DE), also known as diatomite, diatomite filter aid,diahydro, kieselguhr, kieselgur and Celite, is a sedimentary rock primarily composed of the fossilized remains of unicellular fresh water plants known as Diatoms.

The De has a high porosity, with lower density, larger surface area, strong absorption, good suspending performance, it has relative incompressibility and chemical stability without any poison and smell.

SPECIFICATION OF RS900

EQUIVALENT TO CELATOM  FW 13

PHYSICAL AND CHEMICAL PROPERTIES

Structure	Flux-Calcined
Color	White
G.E. Brightness	84
Sieve Analysis (Tyler)
% +150 mesh (>105 microns)	7.7
% +325 mesh (> 44 microns)	….
Median Particle Diameter (microns)	28
pH (10% slurry	9.5
Free Moisture (max % H2O)	0.5
Density	(1b/ft3)          (g/l)
Wet Bulk	25                320-352
Dry Bulk	12                190
Permeability (Darcy)*	0.8-1.3
Specific Gravity	2.33
Refractive Index	1.46

CHEMICAL ANALYSIS

Ignition on loss%   ≤2.0

SiO₂%           ≥89

Fe₂O₃%          ≤2.0

Al₂O₃%          ≤3.5

CaO%           ≤1.16

MgO%           ≤0.17

Pb mg/kg         ≤4.0

As mg/kg         ≤5.0