Ethylenediaminetetraacetic acid tetrasodium salt

Product Details

CasNo： 13235-36-4

MF： C10H12N2Na4O8

Appearance： powder

Delivery Time： 15 days

Packing： 25kg/bag

Purity： 99%

• Basic Information
  • Molecular Formula: C10​H12​N2​O8​Na4​⋅4H2​O
  • Molecular Weight: 452.23
  • CAS Number: 13235 - 36 - 4
  • Appearance: White crystalline powder
• Physical and Chemical Properties
  • Solubility: Soluble in water, insoluble in alcohol, benzene and chloroform.
  • Aqueous Solution Property: The aqueous solution is weakly alkaline, and the pH value of a 1% aqueous solution is about 11.8.
  • Melting Point: 248°C (decomposition)
• Synthesis Method
  • It is usually prepared by the reaction of ethylenediamine with chloroacetic acid, or by the reaction of ethylenediamine with formaldehyde and sodium cyanide.
• Product Uses
  • Detergent and Cleaner Industry: As a water - softening agent, it can chelate calcium and magnesium ions in water, prevent scale formation, and improve the decontamination ability of detergents. It is used in laundry detergents, washing powders, dish - washing liquids, etc.
  • Food Industry: As an antioxidant and stabilizer, it chelates metal ions in food to prevent them from catalyzing the oxidation of fats, prolonging the shelf - life of food. It is applied in canned foods, beverages, dairy products, etc.
  • Textile Industry: Used in the dyeing and finishing process, it chelates metal ions in water to avoid their combination with dyes, which can prevent the decrease of color fastness or uneven color.
  • Water Treatment Field: Applied to the treatment of industrial circulating water and boiler water, it chelates calcium, magnesium, iron and other ions in water to prevent scale and corrosion. It can also assist in the removal of heavy metal ions in sewage treatment.
  • Cosmetics Industry: Used in skin - care products, shampoos, etc., it chelates metal ions to stabilize the formula and prevent product deterioration or discoloration.
  • Agricultural Field: As an additive for trace - element fertilizers, it promotes the absorption of metal ions such as iron and zinc by plants and improves the utilization rate of fertilizers.
• Quality Indicators
  • Industrial Grade: The content (calculated as 452.2) is not less than 99.0%, chloride (Cl−) is not more than 0.01%, sulfate (SO42−​) is not more than 0.05%, heavy metal (Pb) is not more than 0.001%, iron (Fe) is not more than 0.001%, chelating value (mgCaCO3​/g) is not less than 220, and pH value (1% aqueous solution, 25℃) is 10.5 - 11.5.
  • Daily - Chemical Grade: The content (calculated as 452.2) is not less than 99.5%, chloride (Cl−) is not more than 0.01%, sulfate (SO42−​) is not more than 0.05%, heavy metal (Pb) is not more than 0.001%, iron (Fe) is not more than 0.001%, chelating value (mgCaCO3​/g) is not less than 220, and pH value (1% aqueous solution, 25℃) is 10.5 - 11.5.
  • Spray - Dried Grade: The content (calculated as 452.2) is not less than 99.3%, chloride (Cl−) is not more than 0.01%, sulfate (SO42−​) is not more than 0.03%, heavy metal (Pb) is not more than 0.001%, chelating value (mgCaCO3​/g) is not less than 220, pH value (1% aqueous solution, 25℃) is 10.5 - 12.5, and the bulk density is 600 - 800g/L.
• Packaging and Storage
  • Usually packed in 25 - kg bags, or can be packed according to customer requirements. It should be stored in a dry and ventilated warehouse, protected from direct sunlight.