Iota Hb4630 Hydrophobic Fumed Silica Silicone Dioxide CAS No. 7631-86-9

• CAS No.: 7631-86-9
• Appearance: Powder
• Usage: Oil Drilling Auxiliary Agent, Water Treatment Chemicals, Rubber Auxiliary Agents, Plastic Auxiliary Agents, Coating Auxiliary Agents, Textile Auxiliary Agents, Paper Chemicals, Surfactants, Leather Auxiliary Agents, Electronics Chemicals
• Color: White
• Specific Sunface Area(Bet), M2/G: 280
• pH Value in 4% Dispersion: 5.5-8.0
• Model NO.: IOTA HB4630
• Loss on Drying(2 Hours at 105 C), %: 0.5
• Silica Content(Based on Ignited Material: 99.8
• Certification: SGS
• Transport Package: White Kraft Paper Bag
• Specification: 10kg/bag
• Trademark: IOTA
• Origin: China
• HS Code: 3910000000
• Production Capacity: 500mt/Month

Product Description

Fumed Silica IOTA HB4630

 

Product description

HB4630 is hydrophobic fumed silica which is produced by HL4380 after chemical post-treatment with HMDS (Hexamethyldisilazan-).

 

Specification	IOTA  HB4630
Specific sunface area(BET), m2/g	280
pH value in 4% dispersion	5.5~8.0
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), %	≤4.0
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), %	2.5~4.0

 

Applications 

Elastomers, HTV silicone rubber and LSR

Coatings & printings ink 

Defoamer                           

Carbon Powder for Printer

 

Properties

High reinforcement and transparency in HTV and LSR

High hydrophobicity and stable thixotropy 

Anti-settling and anti-sagging agent in coatings and printing ink  

High anti-foam property   

Free flow aid and anti-caking aid for powders

 

Package

White kraft paper bag, 10KG/Bag