Thiodiglycolic Acid
Title: Thiodiglycolic Acid
CAS Registry Number: 123-93-3
CAS Name: 2,2¢-Thiobis[acetic acid]
Additional Names: dimethylsulfide-a,-dicarboxylic acid; mercaptodiacetic acid
Molecular Formula: C4H6O4S
Molecular Weight: 150.15
Percent Composition: C 32.00%, H 4.03%, O 42.62%, S 21.36%
Literature References: Prepn from sodium chloroacetate and hydrogen sulfide: Loven, Ber. 27, 3059 (1894).
Properties: Crystals from water. mp 129°. Sol in water, alcohol.
Melting point: mp 129°
Use: Detection of copper, lead, mercury, silver: Dubsky et al., C.A. 34, 6185 (1940).

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