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Ethylenediaminetetraacetic Acid Disodium Salt

Ethylenediaminetetraacetic Acid Disodium Salt

Basic Information

CAS No.: 139-33-3
Molecular Formula: C10H14N2Na2O8
Molecular Weight: 336.21

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Product Details

Ethylenediaminetetra-acetic acid (abbreviated as EDTA) is used in several industrial applications attributing to its high ability to bind to most of metal cations.  EDTA is produced as several salts, e.g. ethylenediaminetetra-acetic acid disodium salt (EDTAS). EDTA and its salts are used as chelating agents in cosmetic formulations.


Chemical Properties

PropertyValue

Melting point

248 °C (dec.)(lit.)

Boiling point

>100 °C

Density

1.01 g/mL at 25 °C

Vapor pressure

0Pa at 25℃

Refractive index

n20/D 1.363

Storage temp.

2-8°C

Solubility

H2O: clear, colorless

Form

Solution

Color

≤5 (0.5 M)(APHA)

PH

8.0±0.2

Odor

at 100.00?%. odorless

Water Solubility

Miscible with water.

BRN

3822669

Stability:

Hygroscopic

LogP

-4.3 at 25℃

CAS DataBase Reference

139-33-3(CAS DataBase Reference)

EPA Substance Registry System

Ethylenediaminetetraacetic acid disodium salt (139-33-3)

Absorption

cut-off at 268nm


Safety Information

PropertyValue

Hazard Codes

Xn,C

Risk Statements

36/38-36/37/38-22-34-21/22

Safety Statements

26-36-37/39-45-36/37/39-36/37

WGK Germany

2

RTECS

AH4410000

TSCA

Yes

HS Code

29224999

Hazardous Substances Data

139-33-3(Hazardous Substances Data)

Toxicity

mouse,LD50,intraperitoneal,260mg/kg (260mg/kg), Nippon Yakurigaku Zasshi. Japanese Journal of Pharmacology. Vol. 52, Pg. 126S, 1956.


Product Usage

EDTA disodium salt, a versatile chelating agent, is widely utilized for its exceptional ability to sequester divalent metal ions, particularly calcium and magnesium. In the pharmaceutical and cosmetic industries, it is an essential stabilizer and preservative booster, preventing the oxidative degradation of active ingredients caused by trace metal impurities. Its primary application in food and beverage is to maintain color, flavor, and clarity by inhibiting enzyme-catalyzed oxidation. In laboratory settings, it is a standard reagent for complexometric titrations and biochemical assays. Furthermore, it is extensively used in industrial cleaning and water treatment to prevent scale formation and in the textile industry to ensure consistent dyeing by removing metal interference from processing water.

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