Edetate Tetrasodium
CAS:
64-02-8/ 13235-36-4
EINECS:
200-573-9
HS:
2921219000
It is an important complexing agent and metal masking agent. Can be used in textile industry dyeing, water treatment, color sensitization, medicine, daily chemical, paper and other industries, as an additive, activator, water purifier, metal ion shielding agent and styrene butadiene rubber industry activator. It can also be used in liquid detergent to improve the washing quality and enhance the washing effect.
Main Application: Ethylenediaminetetraacetic acid purpose 1, EDTA is an important complexing agent. EDTA is widely used as bleaching fixative, dyeing auxiliaries, fiber treatment auxiliaries, cosmetic additives, blood anticoagulants, detergents, stabilizers, synthetic rubber polymerization initiator, EDTA is a representative chelating agent. It can form stable water soluble complexes with alkali metals, rare earth elements and transition metals. In addition to sodium salt, there are ammonium salt and iron, magnesium, calcium, copper, manganese, zinc, cobalt, aluminum and other salts, these salts have different uses. In addition, EDTA can also be used to detoxify harmful radioactive metals from human body. It is also a water treatment agent. EDTA is also an important indicator, but used to titrate nickel, copper, etc., when used with ammon in order to play an indicator role. 2. EDTA is an excellent chelating agent for calcium and magnesium ions. It is used as a chelating agent for water emulsion polymerization to remove metal ions such as Ca2+, Mg2+, Fe2+ and Fe3+. It can also be used as a complexing agent for anaerobic adhesives, that is, EDTA is used to treat dimethyl methacrylate to remove transition metal ions and to eliminate the effect of promoting the decomposition of peroxides, which is very good for improving the stability of anaerobic adhesives. EDTA sodium chelate metal ions can improve the speed of modified acrylic ac. The storage stability of solid structural adhesive (SGA) is -3 * 10-4 to 6 * 10-4. The storage stability of 50~C was more than 360h at 1.5%, and stored at 50 C for 4D, equivalent to SGA20~C storage for 1 years. 3, commonly used in boiler water softening. Prevent scaling.
Item
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Standard
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Result
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Appearance
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White or off-white crystalline granule or powder
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off-white granule or
crystalline powder
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Assay
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≥99.0%
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99.80%
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Chloride(CL)
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≤0.05%
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0.01%
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Sulfate(SO4)Content
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≤0.05%
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0.01%
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Heavy metals (Pb)
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≤10ppm
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≤5ppm
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Fe
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≤10ppm
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5ppm
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Chelation Value
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≥220 mg(Caco3) /g
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223 mg(Caco3) /g
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PH
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10.5-12.5
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10.86
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Bulk density
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700-950 kg/m3
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878 kg/m3
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Conclusion:
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The product above conform with erterprise standard.
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