氟铝酸钾(钾冰晶石)
Potassium fluoroaluminate( Potassium Cryolite)
化学名称：氟铝酸钾、氟化铝钾
Chemical Names: Potassium fluoroaluminate；potassium aluminium fluoride
化 学 式：KAlF4和K3AlF6
Formula: KAlF4, K3AlF6
化学成分：（%）
成分
F
Al
K
Fe2O3
SO4
H2O
50-52
17-18
29-32
≤0.01
≤0.05
≤1.2
一级
49-51
17-18
28-32
≤0.1
≤0.6
二级
45-51
15-19
27-35
≤1.0
Spec: (%)
F
Al
K
Fe2O3
SO4
H2O
Super grade
50-52
17-18
29-32
≤0.01
≤0.05
≤1.2
I grade
49-51
17-18
28-32
≤0.1
≤0.6
II grade
45-51
15-19
27-35
≤1.0
产品性能：白色或灰白色晶体粉末，粒度有:20目、40目、100目、200目、325目，化学组成为KF-ALF3二元系低共晶点组成，分子比1.2左右，熔点557℃-580℃。在1000克水溶液中溶解度：0℃时0.8克，25℃时1.42克，100℃时4.58克。
Properties: white or grey-white crystal powder; fineness: 20, 40, 100, 200 and 325mesh, composed by KF-AlF3, Molecular rate near 1.2, melting point 557℃-580℃. Solubility in 1000g water: at 0℃: 0.8g; at 25℃: 1.42g，at 100℃: 4.58g.
产品用途：用作铝、铝合金、不锈钢钎焊剂，铝合金制造过程中的脱气剂、助熔剂，也用作玻璃、陶瓷、摩擦剂的活性填料。
Application：It is used as welding flux in aluminum alloy and stainless steel, a degasser and an
auxiliary solvent in aluminum alloy fabrication, also used as an active filler for glass, ceramic and friction compound.
产品包装：袋装，内塑外编；每袋净重25千克或1000千克。
Packing: in 25/1000kg plastic woven bags with film lining.