EDTA-4Na / Sodium Edetate / EDTA Tetrasodium Salt CAS 13235-36-4 CAS NO.13235-36-4

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EDTA-4Na/ Sodium Edetate/ EDTA Tetrasodium Salt CAS 13235-36-4

Description:
EDTA-4Na is a white, crystalline powder that is highly soluble in water. It is a sodium salt derived from ethylenediaminetetraacetic acid. Its molecular formula is C10H12N2Na4O8 and its molecular weight is 380.17 g/mol.

 

Specification:
The exact specifications of EDTA-4Na may vary depending on the manufacturer or supplier. However, the general specifications include:

• Assay: The minimum purity of EDTA-4Na should be typically around 99%.
• pH: The pH of a 5% aqueous solution of EDTA-4Na is usually between 10.5 and 11.5.
• Chelation value: The minimum chelation value is often stated, indicating the ability of EDTA-4Na to form stable complexes with metal ions.
• Heavy metals: The maximum allowable concentration of heavy metals is typically less than 10 ppm.
• Loss on drying: The maximum allowed moisture content is usually less than 0.5%.

Application:
EDTA-4Na has various applications across different industries, including:

1. Chelating agent: EDTA-4Na is a powerful chelating agent that forms stable complexes with metal ions. It is used in metal cleaning, metal plating, and metal finishing processes to remove or control the presence of unwanted metal ions.
2. Detergents and cleaning agents: It is added to detergents and cleaning products to enhance their effectiveness by sequestering metal ions that can interfere with their performance or cause staining.
3. Water treatment: EDTA-4Na is used in water treatment processes to remove or control the presence of metal ions that can cause scale formation or interfere with the efficiency of other treatment chemicals.
4. Analytical chemistry: It is employed as a complexing agent in various analytical techniques, such as titrations and spectrophotometry, to mask interfering metal ions or stabilize metal ion complexes.
5. Pharmaceutical and personal care products: EDTA-4Na is sometimes used in pharmaceutical formulations, cosmetics, and personal care products as a stabilizer or preservative.

Features:
Some notable features of EDTA-4Na include:

• Strong chelating properties: EDTA-4Na has a high affinity for metal ions, forming stable complexes that prevent their interference or reactivity.
• Water solubility: It is highly soluble in water, allowing for easy formulation and incorporation into aqueous systems.
• pH buffering: EDTA-4Na has a buffering effect, helping to maintain the pH stability of solutions.
• Biodegradability: EDTA-4Na is considered biodegradable under certain conditions, which can be advantageous in applications where environmental impact is a concern.

 

Quality standard

Items	Specifications
Assay	≥99.0%
Appearance	White crystalline powder
Chelation value (mgCaCO3)/g	≥265
pH	4.0~5.0
Chloride (Cl-)	≤0.02%
Sulfate(SO42-)	≤0.05%
Iron (Fe)	≤0.001%
Heavy metal (Pb)	≤0.001%

Packaging	1kg-15kg packing	2 PE bag inside + 1 foil bag outside in carton
	25kg-50kg packing	2 PE bag inside + 1 foil bag outside in drum
	Other packing	Customized packing
Drum Size	D38cm*H60cm or customized, 25 kg/ drum
Shipping	1-50kg	International Express	Fast and convenient	Door to Door
	50-500kg	Air Transportation	Fast and cheap	To Air Port
	Above 500kg	Sea Transportation	Cheap and convenient	To Port

 

 

 

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