| Place of Origin |
Ningxia |
| Brand Name |
Ningxia Yiheng |
| Model Number |
SF85 |
Oursilicafumeisproducedinglobalmainferroalloymanufacturingarea,thatisintheeastofHelanmountaincrossedbyNingxiaandInnerMongoliaprovincelocatedinnorthwestofChina,whereissurroundedbyhighenergyconsumingindustrychain.Becauseofhighgradesilicawithlessimpurityaswellasabundantcoalandelectricity,ithaslargeproductionofferro-silicaandmetallicsilicon.Andgatheredsilicafumeisinsteadyqualityandadequatesupply. AccordingtogradeofSiO2,thesilicafumeisdividedto7levels:Grade85,Grade88,Grade90,Grade92,Grade94,Grade95. Antiultravioletandageingresistanceflexiblecontainerisadapted.Twotypesof850KGand900KG. Grade85 Chemical&PhysicalAnalysis ASTMC1240-03 GB/T21236-2007 SiO2(%) 85 ≥85 C(%) ≤2.5 CI(%) ≤0.3 Moisture(%) 3.0 ≤3.0 L.O.I(%) 6.0 ≤6.0 SpecificSurface(BET-m2/gram) 15 ≥15 Pozz.ActivityIndex(%)-7daysacceleratedcuring 105 Pozz.ActivityIndex(%)-28daysnormalcuring ≥85 Retainedon45micronsieve(%) 10 ≤10.0 Variationfromavg.retainedon45micron(%-points) 5 Waterrequirementratio(%) ≤125