Iota Hb4135 Hydrophobic Fumed Silica Silicone Dioxide CAS No. 7631-86-9

• CAS No.: 7631-86-9
• Appearance: Powder
• Usage: Water Treatment Chemicals, Rubber Auxiliary Agents, Plastic Auxiliary Agents, Coating Auxiliary Agents, Textile Auxiliary Agents, Surfactants, Toner
• Color: White
• Specific Sunface Area(Bet), M2/G: 210
• pH Value in 4% Dispersion: 7.0-8.5
• Model NO.: IOTA HB4135
• Loss on Drying(2 Hours at 105 C), %: 0.5
• Silica Content(Based on Ignited Material: 99.8
• Transport Package: White Kraft Paper Bag
• Specification: 10KG/Bag
• Trademark: IOTA
• Origin: China
• HS Code: 28112290
• Production Capacity: 500mt/Month

Product Description

Fumed Silica IOTA HB4135

 

 

Product description

HB4135 is hydrophobic fumed silica which is produced by HL4380 after chemical post-treatment with HMDS (Hexamethyldisilazan-).

 

Specification	IOTA HB4135
Specific sunface area(BET), m2/g	210
pH value in 4% dispersion	7.0~8.5
Loss on drying(2 hours at 105ºC), %	≤0.5
Loss on ignition(2 hours at 1000ºC based on material dried for 2 hours at 105ºC), %	≤8.0
Sieve Residue(45μm), mg/kg	-
Silica Content(Based on ignited material), %	≥99.8
Tamped Density(Based on material dried at 105ºC for 2 hours), g/dm²	40~60
Carbon Content (Based on material dried at 105ºC for 2 hours), %	3.5~6.5

 

Applications 

Silicone rubber

Adhesives and Sealants

Defoamer           

Toner  

 

Properties

Low thickening effect and excellent processability enable high loading in polymers

Excellent reinforcing properties in silicone rubber especially at high filler loading levels(RTV-1,RTV-2,LSR)

Good transparency performance

Free-flow aid for powders

 

Package

White kraft paper bag, 10KG/Bag