fumed silica ss300

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0 Metric Ton	Negotiable

0 Metric Ton

Negotiable

Min.Order :0 Metric Ton
Purity: 99.8
Payment Terms : T/T

Keywords

nano silica fumed silicon dioxide white carbon black

Quick Details

Appearance:
Application:◇As thixotropic and thickening agent of liquid , anti-settling, anti-sagging . ◇Improve the suspension and dispersion of pigment in liquid system . ◇Be used as dispersing and grinding aids ◇To
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ProductionCapacity:20|Metric Ton|Day
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Hydrophilic fumed silica

Product name: SS^®300

CAS NO 112945-52-5

SYNONYMS: fumed silicon dioxide

Physical Description:

Fumed Silica is composed of submicron-sized spheres, which are 40-60% fused into short chains, very highly branched,0.1-0.2microns long. The spheres are quite uniform in size for a given product, but the chain lengths are quite variable,10 to 30 units in length. The surface area, which varies with the particle size, gives a good approximation if the sphere diameter. The smaller the particles, the larger the estimated surface area.

SS® 300 is a hydrophilic fumed Silica with specific surface area of 150m2/g, and it synthetic, hydrophilic, amorphous silica, produced via flame hydrolysis. Particle between 7～40nm.

Along with the traditional polyester, silicone, paints and coatings applications, hydrophilic SS® 300 products are used with increasing success in high technology fields. The particle nature and high purity of fumed silica play key roles in the electronics and optical fibers industries.

Physical-chemical Data

Properties	units	Typical Value	Standard
Appearance		Fluffy white powder
Specific surface area(BET)	m2/g	300±30	GB/T20020
PH-value (in 4% dispersion)		3.7-4.5	GB/T20020
Loss on heating ,ex works(2h@105℃)	Wt%	≤2.0	GB/T20020
Loss on ignition(2h@1000℃,based on material dried for 2h@105℃)	Wt%	≤2.0	GB/T20020
Sieve residue (45μm)	Mg/kg	≤250	GB/T20020
SiO2 content(based on the substance heated at 1000℃ )	Wt%	≥99.8	GB/T20020
Tamped density (based on material dried for 2h@105℃ )	g/L	≤50	GB/T20020
Carbon content(based on material dried for 2h@105℃ )	Wt%	≤0.2	GB/T20020
Al₂O₃mass fraction,	mg/kg	≤400	GB/T20020
TiO₂ mass fraction,	mg/kg	≤200	GB/T20020
Fe₂O₃mass fraction,	mg/kg	≤30	GB/T20020
Chloride content	mg/kg	≤250	GB/T20020

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