Chinese Manufacturers Supply High Quality Micro Silica Fume

Product Detail

payment terms:L/C, Western Union, T/T, MoneyGramgrade:Silica Superfine-400
Free calcium oxide (%):<1.0Al2O3 content (%):maximum. 0.70%
Silica content (%):min92%So3 (%):<3.0
P2O5 content (%):0.50% maxFree Si (%):<0.4 per month
CaO content (%):maximum. 0.50%application:refractory
port:Qingdao, Tianjin, ShanghaiMgO content (%):maximum. 0.50%
brand:colinplace of origin; place of origin:Shandong China
chlorine(%):<0.3Supply capacity:500,000 tons per month
Packaging Details:Borida Microsilica Iis dry-process microsilica powder is available in two 550kg Jumbo bags Main form: 25kg paper bag or plastic bag Chemical composition and Undenified-Grade SiO2>92%, with (2) Densified MicroSilica-92D Packaging is: Physical properties are usually typical Bulk 200-1000kg Jumboo bag tested and Borida 350kg/m3 25kg paper or plastic bags Laboratory with international Densified-Grade SiO2 >92%, with a typical special packagingMoisture (%):<1.0
Fe2O3 content (%):maximum. 0.50%Types of:Silica fume
Package preview:
Product Description
Silica fume, also known as silicon powder or microsilica, is a by-product of the production of silicon metal or ferrosilicon alloy. Silicon metal and alloys are produced in electric furnaces. The raw materials are quartz, coal and wood chips. Collect the smoke generated by the furnace operation and sell it as silicon powder. Silicon powder is mainly composed of amorphous (amorphous) silicon dioxide (SiO2), with an average particle size of 0.15~0.20um and a specific surface area of ​​15000~20000m2/kg. Has extremely strong surface activity.
Product parameters:
Chemical and Physical Analysis
ASTM C1240-11
EN 13263:2005
/
Spec frequency
Spec frequency
Silica (%)
>92.0 300 tons
>92.0 weekly
sulphur trioxide(%)
/
<3.0 per week
chlorine(%)
/
<0.3 per week
Free calcium oxide (%)
/
<1.0 per week
Free silicon (%)
/
<0.4 per month
Alkali (equivalent Na2O %)
Report 300MT
/
Moisture (%)
<1.0 300 metric tons
/
Loss on ignition, LOI(%)
<4.0 300 tons
<4.0 per week
Specific surface area (BET -M2
/ grams)
>18 2200MT/3 months
15-35 months
Bulk density (kg/m3)
Report 300MT
/
Pozz.Activity Index(%) - 7 days accelerated curing
>110 2200MT/3 months
/
Pozz.Activity Index(%) - 28 days accelerated curing
/
>100 per month
Retained on 45 micron sieve (%)
<10 3 00 metric tons
Difference (%) from avg.retained at 45 microns
<2 avg.of last 10 tests
Density (kg/m3
)
Report 300MT
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