Food grade diatomaceous earth/feed grade diatomaceous earth

physical properties

chemical properties

grade

QHWX020#

silica₂

≥90.1%

color/appearance

pink fine powder

Al₂Europe₃

≤4%

describe

calcined

iron₂Europe₃

≤1.5%

proportion

2.3 g/cm3

Calcium Oxide

≤0.6%

moisture

≤1.0%

magnesium oxide

≤0.5%

Loss on ignition

≤3.8%

others

≤0.8%

pH

7-9

Lead, mg/kg

<0.3

PH slurry

9.20-10.20

Trap

<25 mg/L

Bulk density

0.38-0.45 g/cm3

Arsenite

<4ppm

median particle size range

5-10μm

heavy metal

<0.005%

Reserved at 325 mesh

≤2%-4%

Solubility of XaOH

45%-75%

weight water absorption

≤180

Hydrochloric acid solubility

3.0%-6.0%

Oil absorption by weight

100-150 (%)

Sedimentation speed

≤35-55 (ml/hour)

Refractive index

1.42-1.55

Refractoriness

900-1380℃

Application range

Oil, water, dust, gas stations, wharves, highways, ship and car warehouses, land chemical industry plants, government and hotel work areas for pollution removal and absorption materials Catalysts, fillers for castings and carrier functional additives Iron Pipe coatings, pesticides, fertilizers, rubber, plastic films, paints, coatings, cement, paper, grinding, fiberglass, feed, feed, ceramics, detergents, dental materials, dispersants, cosmetics, toothpaste, food, polishing agents, pesticides, Other general uses of insecticides.