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CAS 7681-49-4 Sodium Fluoride Powder High Purity For Welding Flux

Categories Sodium Fluoride Powder
Brand Name: Jinshengwei
Model Number: Grade 1
Certification: ISO 9001
Place of Origin: Jiaozuo, Henan, China
MOQ: 1 Ton
Price: $100-1000
Payment Terms: D/A, L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability: 2000 tons per month
Delivery Time: 3-5 days
Packaging Details: 25kg or 50kg pp bags or multiply paper bags, or according to your demands
CAS No.: 7681-49-4
melting point: 993°C
boiling point: 1695°C
Density: 1.125g/cm3
Appearance: white powder
EINECS No.: 231-667-8
RTECS No.: WB0350000
Molecular weight: 41.99
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    CAS 7681-49-4 Sodium Fluoride Powder High Purity For Welding Flux

    Top quality sodium fluoride for ceramic or coating CAS 7681-49-4

    Application


    As a phosphating accelerator in the coating industry, the phosphating solution is stabilized, the phosphating is refined, and the performance of the phosphating film is improved. Aluminium and its alloys phosphatize to block Al3+, which has a highly harmful negative catalytic effect, so that phosphating can smoothly carry out wood preservatives, agricultural pesticides, brewing industry fungicides, pharmaceutical preservatives, welding fluxes, and alkaline zinc. Acid galvanizing additives and enamel, paper industry, etc.


    Product Description

    Cryolite and six fluoride and sodium aluminate and sodium aluminum fluoride, formula for Na3AlF6, white tiny crystals, no smell, solubility, larger than the natural cryolite ratio is 3, 2 ~ 3 hardness, melting point 1009 ℃, easy water be affected with damp be affected with damp.

    Cryolite is mainly used as fluxing agent in the production of aluminum electrolysis, rubber, wheel wear resistant filler, enamel opal agent, glass of sunscreen and metal flux, crops insecticide, etc.


    Hall - Heroult method is to use cryolite based fluoride as solvent to produce aluminium melt method, so far haven't found another compounds can take the place of cryolite.This is because the cryolite besides can dissolve the alumina also has some other indispensable properties, such as excluding than aluminum correction electrical elements, good stability, under the condition of the general decomposition, non-volatile, deliquescence, melting point higher than that of aluminum, good conductivity, electricity saving, etc.


    Specification Refere

    Items
    Results of Analysis
    Data
    F%≥
    53.5
    52-55
    Na% ≥
    32.2
    28-33
    Al≥
    12
    12-15
    CaO%≤
    0.18
    0.20
    P2O5%≤
    0.026
    0.03
    SiO2≤
    0.27
    0.40
    H2O%≤
    0.25
    0.80
    Fe2O3%≤
    0.09
    0.10
    SO4%≤
    0.097
    1.30
    Ignite on 550oC≤
    2.6
    3.00

    Packaging & Shipping

    10KG/ package,25KG/ package,50KG/ package,25 kg / barrel,50 kg / barrel etc.... Or as customers' requirement.

    1. As for the tiny amount(less than 50kgs), we will use express(TNT, FedEx, EMS or DHL etc), which is convenient.
    2. As for the small amount (from 50kgs to 1000kgs), we will deliver by air or by sea.
    3. As for the normal amount (more than 1000kgs), we usually shipped by sea.


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