Fumed Silica

• CAS No.: 7631-86-9
• Formula: O2si
• EINECS: 231-545-4
• Appearance: Powder
• Grade Standard: Industrial Grade
• Melting Point: >1600 Degree
• Model NO.: Fumed Silica HL-200
• Boiling Point: >100 Degree
• Density: 2.2-2.6g/Ml at 25 Degree
• Flash Point: 2230°c
• Storage: 2-8°c
• Transport Package: 10kg Bag
• Specification: ≥ 99.8
• Trademark: KINGWAY
• Origin: China
• HS Code: 2811229000
• Production Capacity: 12000 Tons Per Year

Product Description

Fumed Silica 

PRODUCT DESCRIPTION

Characteristics

HL-200 is hydrophilic fumed silica with a specific surface area around 200M3/g.    

Good quality, competitive price,contact us to get free sample for test.

Applications

1.Coatings & Paintings → Improve Thixotropic &  Anti-settling properties & Increased scratch resistance

2.Adhesives & Sealants → adjustment of rheology during processing & thickening effect

3.HTV&RTV Silicon Rubbers → reinforcement of silicone elastomers & thickening effect

4.Thin Film & UPR → reinforce physicle strength & tensile strength

5.Printing Ink → anti-settling & thickenging

6.Fertilizer & Pesticide →  thickening & anti-settling for liquid system product ;

                                        →  anti-caking & free flow aid for powder products

7.Cosmetics →  Improve thickening & anti-caking & anti-settling perofrmance

Properties

Reinforcing filler in elastomers

Rheology control and thixotropic agent

Anti-settling,anti-sagging and thickening agent

Free flow aid and anti-caking aid for powders

High Transparency

Physical & Chemical Data

Test Item		Reference range		Test Data
Specific Surface Area  (m2/g)		HL-200	200±20	212
pH Value		3.9~4.5		4.07
Loss on Drying @ 105C(%)		≤2.0		0.46
Loss on Ignition @ 1000C(%)		≤2.0		0.47
45um SieveResidue (mg/kg)		≤250		21
Tamped Density (g/l)		40~60		48
SiO2 Content  (%)		≥99.8		99.83
Carbon Content  (%)		≤0.20		0.03
Chloride Content  (mg/kg)		≤250		31
Oxide Content (mg/kg)	Al2O3	≤300		11
	TiO2	≤200		10
	Fe2O3	≤30		3
Conclusion		Qualified