Method for handling iminocarboxylic acid salt
AssigneeNippon Shokubai Co., Ltd.
InventorsMiaki Asakawa, Yasutaka Sumida, Yuichi Kita
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Abstract
An aqueous iminocarboxylic acid salt solution composition the iminocarboxylic acid salt of which has a structure of the formula (II): ##STR1## wherein R is a hydrogen atom or a hydroxyl group and Y is a sodium atom, a potassium atom, or an ammonium group, contains an aspartic acid backbone moiety whose molar ratio of the isomers, i.e. D form/L form, is in the range of 1/0 to 0.7/0.3 or D form/L form, in the range of 0/1 to 0.3/0.7, and accounts for a concentration in the range of 40 to 70% by weight and a method for handling the composition while keeping the pH value thereof kept in the range of 7 to 12.
Claims8
A method for handling an iminocarboxylic acid salt represented by the formula (I):
- ##STR4## wherein R is a hydrogen atom or a hydroxyl group and X is a sodium atom or an ammonium group, which comprises:
- handling the salt in the form of an aqueous solution wherein the salt contains an aspartic acid backbone moiety whose molar ratio of the isomers, designated as D form/L form is in the range of 1/10 to 0.7/0.3, or D form/L form in the range of 0/1 to 0.3/0.7, and accounts for a concentration in the range of 40 to 70% by weight, said method of handling selected from the group consisting of transporting the aqueous solution by means of a tank lorry, storing thereof as in a tank, and conveying thereof as by piping including pipes, valves and nozzles.
Dependencies are inferred from the claim text.