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silica micropowder 7440-21-3 china silica micropowder silica micropowder Factory

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  Post Date: Jul 24,2013
  Expiry Date: Jul 24,2014
  Detailed Description: silica micropowder 7440-21-3 china silica micropowder silica micropowder Factory
Product technical index:

Appearance: white powder

Whiteness%≥: 93.5

PH range: 6.5-7.5

Partical size: D50/1.86μm, D90/4.34μm, D97/5.0μm, D100/9.09μm

Thermal expansion coefficient(20-300℃): 53X10-6K-1

Hardness: 7 Moh's hardness

Specific gravity(t/m3): 2.35-2.65

Refractive index: 1.50N

Moisture%≤: 0. 05

Oil absorption(ml/100g): 18-22

Melting point℃: 1750

Product conventional ingredients:



No.

Ingredient

Content %

1

LOSS(1025℃)

0.05

2

aluminium oxide ALO

0.35

3

silica SiO

99.53

4

Iron(III) oxide FeO

0.007

5

Calcium oxide CaO

0.01

6

Magnesium oxide MgO

0.01

7

potassium oxide KO

0.01

8

sodium oxide NaO

0.02

9

Titanium(IV) oxide TiO

0.01



SGS ROHS testing result:

Testing item

limiting value

unit

MDL

1

cadmium(Cd)

100

mg/kg

2

ND

lead(Pb)

1000

mg/kg

2

ND

mercury(Hg)

1000

mg/kg

2

ND

hexavalent chromium(Cr(VI))

1000

mg/kg

2

ND

PBBs

1000

mg/kg

-

ND

PBDEs

1000

mg/kg

-

ND



Physical performance:

1.Superior optical performance: refractive index 1.45N;

2.High whiteness, low density and bright clean luster;

3.Weather resistance, corrosion resistance, wear resistance, non-containing of organic material, fine uvioresistant performance and insulativity;

4.Fine thermal shock resistance.



Packing, valid period and storage condition:

Packing specification: 800×400×100, 800×450×120

Material quality: import packing paper, plastic film and PVC inner film

Net weight: 25(20,40,50)KG/bag

Valid period: 3 years

Storage condition: The product should be away from moisture and easily to absorb moisture. Therefore it should be stored in sealing, normal temperature and dry condition.

Product advantages:

High hardness, low oil absorption, fine dispersity, corrosion resistance, thermal shock resistance, insulation, long valid period, high temperature resistance, wear resistance, acid-resistance and alkali-resistance

Product uses:

Rubber industry: silicon rubber, silica gel, tackiness agent, sealing compound and plastic;

Plastic industry: electrical equipment shell, plastic product, construct tubular product;

Coating industry: engineering industrial coating, external wall emulsion paint, water proof emulsion paint, automotive coating;

Printing ink industry: metal printing ink, silica gel ink, plastic gel ink and electrical ink;

Other industry: glazing, ethoxyline resin, electrical equipment adding etc.

*Lower silicon micro powder oil absorption

*Best effect is tested by your application!

Notes:

1. Guangzhou Yongjiu Import& Export Trading Co., Ltd. has became the supplier of over 30 domestic and abroad middle or large enterprises and listed companies in plastic, silicon rubber, coating, epoxy resin and printing ink industries. Our 8 series products are Q1506,Q2503,Q2505,Q2506,Q3503,Q3505,QM01,QM02.

2.We can provide our products with SGS report, examining report, MSDS, Europe and America particle size report, product specification and shipment report.


  Company: Guangzhou Yong Jiu Import and Export Trading Co., Ltd     [ China ]        
  Contact: Wan
  Tel: 020-82573157
  Fax: 020-22191220
  Email: 1217038972@qq.com
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