superior quality synthetic cryolite /potassium cryolite

Brief Description
Classification: Halide (Except Chloride) Type: synthetic cryolite CAS No.: 15096-52-3
Other Names: Cryolite MF: AlNa3F6 EINECS No.: 239-148-8
Place of Origin: China (Mainland) Grade Standard: Agriculture Grade, Industrial G... Purity: 53%min
Appearance: white crystalline powder or a sandy Application: Electrolytic Aluminium Brand Name: PB
Model Number: 53% color: white 
Delivery Terms & Packaging
Packaging Detail:25kg/bags with inner plastic lining, or as the request of our customer
Delivery Detail:within 15 days after received the payment
Specifications
superior quality synthetic cryolite /potassium cryolite

Synthetic Cryolite
White or Gray sandy,powder
Cas No.:13775-53-6
Density:2.95-3.05g/cm3
aluminum alloy;glass,ceramic ind

Synthetic Cryolite

Properties:The product is a white crystalline powder or a sandy-size granularity, and a pinkish crystalline powder or a sandy-size granularity as well. Sp.gr.2.95—3.01g/cm3, melting point about 1000centigrade, specific heat 1.056j/gcentigradeat 18—100centigrade. It’s slightly soluble in water, but insoluble in anhydrous hydrogen fluoride. The content of its crystal water will be decreased while the increasing of the molecular ratio, therefore its loss on ignition will be also decreased while the increasing of the molecular ratio. After the paste of synthetic cryolite with different molecular ratio dehydrates, the loss on ignition at 800centigrade will appear 10.34%, 6.22% and 2.56% when the molecular ratio reaches 1.74, 2.14 and 2.63 reactively.

Uses: It’s mainly used as a flux in the aluminum 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 aluminum alloy casting; and in the production of ferrous alloy and effervescing steel; as well as a wear-resistant filler for resin and rubber-boned abrasive wheels.

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°C)
≤0.20
≤0.40
≤0.20
≤0.40,
Loss on Drying(500~550°C,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.