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Name: N-Methyliminodiacetic acid   

CAS NO: 4408-64-4

Purity: 97% min

MF: C5H9NO4

MW:147.129

BP:332.8±27.0 °C at 760 mmHg

Density:1.4±0.1 g/cm3

MP: 220 °C (dec.)(lit.)

EINECS:224-557-6

Appearance: Cream powder

Package: 25g, 100g, 500g, bulk package

Application: Organic Synthesis intermediate

Other name:

2,2'-(Methylazanediyl)diacetic acid;

2-[carboxymethyl(methyl)amino]acetic acid;

Glycine, N-(carboxymethyl)-N-methyl-;

Process for recovering N-methyliminodiacetic acid CAS NO: 4408-64-4 from sodium sulfate

methyliminodiacetic acid is separated from mixtures of N-methyliminodiacetic acid CAS NO: 4408-64-4 and sodium sulfate formed by acidification of solutions of its disodium salt with sulfuric acid. Thus the disodium salt is acidified with sulfuric acid to a ph of about 2 and concentrated by evaporating water so as to crystallize sodium sulfate. The sodium sulfate is separated, and the resulting mother liquor is cooled to precipitate N-methyliminodiacetic acid, which is then separated.

Preparation of N-Methyliminodiacetic acid   CAS NO: 4408-64-4

The sodium chloroacetate solution reacts with the methylamine solution below 50℃,a solution of barium chloride dihydrate is added to the reaction mixture,the barium salt of methyl diacetate was filtered.Then The barium salt of methyl diacetate was filtered.The filtrate was reduced pressure and concentrated. Anhydrous methanol was added, cooled, filtered, and washed with methanol,after drying at 100℃, the yield of methyl diacetic acid was 63-71%.

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