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Synonymous：Ethylene Diamine Tetraacetic Acid, EDTA Acid，EDTA H4, Editic Acid
Molecular formula：C10H16N2O8
CAS NO.：60-00-4
Molecular weight：292.2
Structure ：
Properties:
EDTA is a white crystalline powder, melting point 240 ℃ (decomposition); The solubility in water is 0.5g/l (25 ℃), insoluble in general organic solvents, soluble in 160 parts of boiling water and soluble in alkaline solutions such as sodium hydroxide; At 150 ℃, it shows a tendency to remove carboxyl groups.
Main quality indicators:
Appearance | White crystalline powder |
Content% | ≥99.0 |
Sodium carbonate solution dissolution test | qualified |
Burning residue (calculated by sulfate)% | ≤0.15 |
Cl- % | ≤0.01 |
SO42-% | ≤0.1 |
Fe% | ≤0.001 |
Pb% | ≤0.001 |
Main purpose:
Ethylenediamine tetraacetic acid is mainly used as complexing agent and is widely used in water treatment agent, washing additive, lighting chemicals, papermaking chemicals, oilfield chemicals, boiler cleaning agent and analytical reagent.
1. Polymer chemical industry: used as polymerization activator of styrene butadiene latex and polymerization terminator of acrylic fiber production plant;
2. Daily chemical industry: used as an additive for a variety of detergents, skin care products and perm and hair care agents;
3. Paper making industry: used as a treatment agent for fiber cooking, improve paper whiteness and reduce scaling in the steamer;
4. Pharmaceutical industry: ethylimide can be prepared by cyclization with formamide. It is a drug mainly used to treat psoriasis. It is also used as a stabilizer for some vaccines and blood anticoagulant;
5. Textile printing and dyeing industry: improve the coloring rate of dyes and the hue and whiteness of printed and dyed textiles.
Packaging: 25kg PP bag, or packaging according to customer requirements.
Storage: store it in a dry, ventilated and cool warehouse, avoid direct sunlight, and put it on shelves or pallets. Stack it gently to avoid package damage, moisture and pollution.
Manufacturing
