我穿丝袜短裙在教室被同桌摸_成人a毛片在线看免费全部播放_亚洲品质自拍_a级性生活片

shape-img
shape-img
shape-img
shape-img
shape-img
shape-img
shape-img
shape-img
shape-img
shape-img
shape-img
shape-img
Potassium cryolite


Potassium cryolite Potassium cryolite Potassium cryolite

Alias: Potassium Fluoroaluminate, Potassium Aluminum Fluoride
Molecular formula: K3AlF6
Grade: Industrial
Appearance: Powder, Sand
Application: abrasive and grinding tool
CAS Number: 13775-52-5
Colors: White , Gray White
Uses: Mainly used as raw materials for the production of aluminum-magnesium cast boron-containing alloys; deoxidizers and fluxes in the manufacturing process of aluminum alloys; fiber fluxes and fluxes for aluminum, aluminum alloys, and stainless steel; popular materials for friction agents; Glass and ceramic industry.
Physical and chemical properties: White or light gray powder, slightly soluble in water.
Packing specification: Laminated plastic woven bag lined with plastic film double-layer packaging, net weight of each bag is 25Kg, 50Kg, or according to customer requirements.
Technical requirements: corporate standards

Grade
Chemical composition /%
F
K
Al
Na
SiO2
Fe2O3
SO42-
H2O
K/Al
Not Less Than (% min.)
Not More Than(% max.)
Gifted class
50
29.5
17.5
0.2
0.06
0.01
0.15
1.5
1.18-1.22
First level
50
27
19
0.5
0.1
0.01
0.20
1.5
1.0-1.3




?