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Synthetic Cryolite

【Molecular formula】: Na3AlF6
【Molecular weight】: 209.5
【CAS】: 15096-52-3
【Execute standard】: GB/T4291-2007
【HS CODE】:2826.3000
【Properties】:still named sodium fluoaluminate. It is a white crystalline powder or a sandy size granularity as well. Melting point about 1000ºC. It is insoluble in anhydrous hydrogen fluoride, but slightly in water.
【Uses】: It is mainly used as a flux in the aluminium smelting by fused salt electrolysis;also an opalizer in the manufacture of enamel;an opacifier and auxiliary solvent of glass and enamel;an insecticide of crops;a flux in aluminium alloy casting;and in the production of ferrous alloy and effervescing steel.
【Packing】: 25kg/woven bags with inner plastic lining, or as the request of our customer
【Quality Index】:
SPECIFICATION (GB/T4291-2007)
CHEMICAL COMPOSITION (%)
CH-0
CH-1
CM-0
CM-1
F
≥52
≥52
≥53
≥53
Al
≥12
≥12
≥13
≥13
Na
≤33
≤33
≤32
≤32
SiO2
≤0.25
≤0.36
≤0.25
≤0.36
Fe2O3
≤0.05
≤0.08
≤0.05
≤0.08
SO4 2-
≤0.6
≤1.0
≤0.6
≤1.0
CaO
≤0.15
≤0.20
≤0.20
≤0.6
P2O5
≤0.02
≤0.03
≤0.02
≤0.03
H2O(105~110℃)
≤0.20
≤0.40
≤0.20
≤0.40,
Loss on Drying(500~550℃,1h)
≤2.0
≤2.5
≤2.0
≤2.5
PACKING
Package can be 25/50/1000kg plastic woven bags with shrink film, or according to customer’s requirements.
REMARKS
 The size distribution can be sandy (80mesh~100mesh), powder (200mesh~325mesh), granular (0~10mm).The molecular proportion can be specified (during 1.0~3.0) according to special requests.Other items can be specified according to special requirement.