Triazine carboxylic acids as corrosion inhibitors for aqueous sy

Details Triazine carboxylic acids as corrosion inhibitors for aqueous sy Triazine carboxylic acids as corrosion inhibitors for aqueous sy

1981-08-03

1983-09-06

Barr, Josephine

Chemical apparatus and process disinfecting, deodorizing, preser

Process disinfecting, preserving, deodorizing, or sterilizing

Maintaining environment nondestructive to metal

252391, 252392, 252390, 252389R, 252 79, 106 1415, 106 1418, 422 16, 422 17, 210698, C23F 1100

Patent

active

044029071

ABSTRACT:
Triazine di- and tricarboxylic acids of the formula ##STR1## wherein Z is a straight-chain or branched chain unsubstituted or substituted 1-11C alkylene group, a 2 or 3C alkenylene group, a 5-12C cycloalkylene group or an unsubstituted or substituted arylene group, X is H, an alkali metal, an alkaline earth metal, NH.sub.4.sup.+ or a primary, secondary or tertiary 1-12C ammonium residue, R.sub.1 and R.sub.2 are the same or different and each is H, 1-4C alkyl or a group --Z--COOX or R.sub.1 or R.sub.2 together with Z can form a 5- or 6-membered heterocyclic ring, R.sub.3 is 1-12C alkyl, phenyl or a group of formula --NR.sub.4 R.sub.5, --OR.sub.6 or --SR.sub.6 in which R.sub.4 and R.sub.5, independently, are H, 1-12C alkyl optionally substituted by a hydroxyl group, cyclohexyl, an aryl group having from 6 to 10 ring carbon atoms, optionally substituted or a group --Z--COOX and R.sub.6 is H, 1-12C alkyl, or a 6-12C aryl group, are excellent corrosion inhibitors for aqueous systems in contact with ferrous metals. Such systems may be e.g. water circuits, aqueous machining fluids or any other aqueous functional fluids.

REFERENCES:
patent: 2485309 (1949-10-01), Nunn
patent: 3165515 (1965-01-01), D'Alelio
patent: 3236846 (1966-02-01), Knusli et al.
patent: 3697520 (1972-10-01), Winter
patent: 3897209 (1975-07-01), Harris et al.
patent: 3925245 (1975-12-01), Harris et al.
patent: 3963636 (1976-06-01), Harris et al.
patent: 4089796 (1978-05-01), Harris et al.
Nestler et al., J. Prakt Chem., 23, 173-185 (1963).
Lastovskii et al., Zhur. Anal. Khim, 15, 419-423 (1960).

Affiliated with

Also associated with

Rating

Triazine carboxylic acids as corrosion inhibitors for aqueous sy does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Triazine carboxylic acids as corrosion inhibitors for aqueous sy, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Triazine carboxylic acids as corrosion inhibitors for aqueous sy will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1591839