Quick Details

CAS No.:: 7631-86-9

Other Names:: fumed silica

MF:: SiO2.x(H2O)

EINECS No.:: 238-878-4

Place of Origin:: Shandong, China

Usage:: Ceramic Pigments, Coating Pigment, Cosmetic Pigment, Ink Pigments, Leather Pigments, Plastic & Rubber Pigment

Brand Name:: zefeng

Model Number:: 99

Type:: Titanium

Style:: Organic Pigment

Product name:: silica hydrated

Supply Ability

Supply Ability:: 100000 Tonne/Tonnes per Year

Packaging & Delivery

Packaging Details: 15kg/bag, 20kg/bag. Double layers of packing, the inner with plastics film bag and the outer with plastics-applied weaving bag

Port: any port in china

Lead Time :: 7-12days

Specifications

Factory provide silica hydrated 98% food grade
SiO2 nH2O
white powder/granular
competitive price

Factory provide silica hydrated 98% food grade

1) MF:SiO2 nH20
2) white powder or granular

3) Grade:industrial grade

properties:

With special physic-chemical properties, Precipitated silica work as reinforcing transparent fillers highly valued in formulation of rubber-based blends, lead to enhanced tensile strength, tear strength and abrasion resistance and increase hardness of vulcanized rubbers, reduce consumption of rubbers and therefore reduce the cost.

Specification:

Appearance	Micron pearl/ Granula						Powder
SiO2 (ignited basis) %	≥98	≥98	≥98	≥98	≥98	≥98	≥98
SiO2 content ( SiO2 (dried basis) %	≥90	≥90	≥90	≥90	≥90	≥90	≥90
Specific surface area	115±10	130±10	155±10	175±10	195±10	215±10	175±10
Drying loss(105) %	4--8	4--8	4--8	4--8	4--8	4--8	4--8
Ignition loss(1000) %	≤7	≤7	≤7	≤7	≤7	≤7	≤7
PH value	6.0--7.5	6.0--7.5	6.0--7.5	6.0--7.5	6.0--7.5	6.0--7.5	6.0--7.5
Sulfate%	≤2	≤2	≤2	≤2	≤2	≤2	≤2
DBP absorption value cm3/100g	150-280	150-280	150-280	150-280	150-280	150-280	150-280
Sieve residue on 325 mesh%	≤0.5	≤0.5	≤0.5	≤0.5	≤0.5	≤0.5	≤0.1
Bulk density g/l	≥200	≥200	≥200	≥200	≥200	≥200	≥80
Particle size(D50) um	≥250	≥250	≥250	≥250	≥250	≥250