Ethylene Diamine Tetraacetic Acid EDTA 4NA for water treatment and preservative
Product Description
CAS No.: 64-02-8
Molecular formula: C10H12N2Na4O8
Molecular weight: 380.17
EINECS number: 200-573-9
Melting point >300 °C (lit.)
Density Apparent density: 6.9 lb/gallon
Solubility H2O: 0.1 g/mL, clear, colorless
Form: Crystalline Powder
Color: White
Properties : white crystal powder melting point 240ºC(decomposition) insoluble in cold water ,alcohol and general organic solvent, slightly soluble in hot water, but soluble in sodium hydroxide, sodium carbonate and ammonia solution.
Product Specification
| Item | Standard | Result | |||
| Appearance | White or off-white crystalline granule or powder | off-white granule or crystalline powder | |||
| Assay | ≥99.0% | 99.8% | |||
| Chloride(CL) | ≤0.05% | 0.014% | |||
| Sulfate(SO4)Content | ≤0.05% | 0.0080% | |||
| Heavy metals (Pb) | ≤10ppm | ≤5ppm | |||
| Fe | ≤10ppm | 5ppm | |||
| Chelation Value | ≥220 mg(Caco3) /g | 223 mg(Caco3) /g | |||
| PH | 10.5-12.5 | 10.86 | |||
| Bulk density | 700-950 kg/m3 | 878 kg/m3 | |||
Product Usage
EDTA-4Na is an important chelant of metal ion. It is used as additive, activator, clean water agent and metal ion masking composition for cleanse industry, polyreaction, watertreatment,color photosensitive and paper industry.
1. High molecular chemical industry: EDTA is used as polymetization activator for butyl bezene latex, and polyreaction terminator in acrylic fibre production.
2.Daily chemicals: EDTA is used as additive to detergent, skin cream and hair-conditioner.
3.Paper-making: EDTA is used for treating the steamed fibre. It will promote the whiteness of paper and reduce the incrustation in the steamer.
4.Pharmaceutical industry: Through cyclopolymerization with methyl amide, EDTA is made into ethyl amide, a remedy for psoriasis. It is also a stablizer for some vaccines and an antihaemoagglutinin.
5. Textile dyeing and printing: EDTA will promote colour ability of the dyestuff and brightness of the dyed fabric
Product Packing
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