EDTA

Chinese Name: ethylenediaminetetraacetic acid

English Name: EDTA (ethylene diamine tetraacetic acid, EDTA acid, EDTA H4, editing acid)

CAS NO. ：60-00-4

Molecular formula: c10h16n2o8

Molecular weight: two hundred and ninety-two point two

Technical indicators

Itemitems

Specificationindicators

Appearance

White Crystal Powder

Content%

≥99.0

Chloride chlorid (Cl)%

≤0.01

Sulfate (as SO₄²⁻) %

≤0.05

Heavy Metal heavy metal(Pb)%

≤0.001

Iron(Fe)%

≤0.001

Loss on Drying (105±2℃) %

≤0.2

Chelated Value (mgCaCO3/g)

≥339

PH (Saturated Solution 25℃)

2.6-3.2

character:

EDTA is a white crystalline powder, melting point 240 ℃ (decomposition), solubility in water is 0.5g/l (25 ℃), insoluble in general organic solvents, soluble in 160 parts of boiling water, soluble in alkaline solutions such as sodium hydroxide, etc., showing the tendency to remove hydroxyl at 150 ℃.

Purpose:

EDTA is widely used as a representative chelating agent. It can be used as bleaching fixative, dyeing aid, fiber treatment aid, cosmetics additive, blood anticoagulant, detergent, stabilizer, synthetic rubber polymerization initiator for the processing of color sensitive materials. It is an important complexing agent, which can form stable aqueous complexes with alkali metals, rare earth elements and transition elements. Widely used in polymer chemical industry, daily chemical industry, paper industry, pharmaceutical industry, agriculture, textile printing and dyeing industry, photographic chemicals, oilfield chemicals, water treatment agents, boiler cleaning agents and analytical reagents. In addition, EDTA can also be used to rapidly excrete harmful radioactive metals from the human body to detoxify them. It is also a water treatment agent. EDTA is also an important indicator, but it can be used to titrate nickel, copper, etc. when it is used, it should be used together with ammonia water to play the role of indicator.

1. Polymer chemical industry: used as polymerization activator of SBR latex and polymerization termination agent of acrylic fiber production unit;

2. Daily chemical industry: it is used as an additive for many kinds of detergents, skin care products and hair care agents;

3. Paper making industry: used as a treatment agent for fiber cooking, to improve the whiteness of paper and reduce the scale in the steamer;

4. Pharmaceutical industry: it can be synthesized by cyclization with formamide. It is a kind of medicine mainly used in the treatment of psoriasis, and also used as stabilizer of some vaccines and blood anticoagulant;

5. Textile printing and dyeing industry: improve the dye coloring rate and the hue and whiteness of printed and dyed textiles.

Packaging: 25kg plastic bag or white woven bag, or according to the customer's requirements. Pay attention to sunscreen, moisture-proof, fire-proof, non dangerous goods storage.