Compositions – Compositions containing a single chemical reactant or plural... – Organic reactant
Patent
1983-11-07
1984-10-16
Lieberman, Paul
Compositions
Compositions containing a single chemical reactant or plural...
Organic reactant
252 793, 252 86, 252 87, 252136, 252173, 25217419, 252178, 252180, 252181, 252DIG10, 134 3, 134 28, C11D 708
Patent
active
044773641
ABSTRACT:
An acidic glass cleaning composition for removal of residue, deposits and impurities from glassware is provided, the improved acidic glass cleaning composition comprising from about 1 to about 15 weight percent hydrofluoric acid and from about 85 to about 99 weight percent of an aqueous acidic composition having a pH value of less than about 1. The aqueous acidic constituent employed in the acidic glass cleaning composition is prepared by the steps of: (a) mixing from about 20 to about 30 weight percent hydrochloric acid with from about 16 to about 26 weight percent phosphoric acid for an effective period of time to produce a substantially homogeneous acidic mixture; (b) admixing the substantially homogeneous mixture into an effective amount of water to provide an aqueous acidic mixture containing from about 36 to about 62 weight percent water; (c) admixing from about 5 to about 11 weight percent of a hydroxy carboxylic acid into the aqueous acidic mixture to produce a hydroxy carboxylic acid containing aqueous acidic mixture; and (d) admixing from about 3 to about 7 weight percent of a dicarboxylic acid into the hydroxy carboxylic acid containing aqueous acidic mixture.
REFERENCES:
patent: 3448055 (1969-06-01), Mickelson et al.
patent: 3514407 (1970-05-01), Missel
patent: 4181622 (1980-01-01), Gavin
patent: 4199469 (1980-04-01), Walger
patent: 4250048 (1981-02-01), Leveskis
Burdick Glen M.
Capetrol International, Inc.
Le Hoa Van
Lieberman Paul
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