Compositions – Compositions containing a single chemical reactant or plural... – Organic reactant
Patent
1984-11-27
1987-05-19
Willis, Prince E.
Compositions
Compositions containing a single chemical reactant or plural...
Organic reactant
252142, 134 2211, 134 40, 134 41, C11D 708, C11D 710, C23G 104
Patent
active
046666257
ABSTRACT:
An acid cleaner composition to remove deposits capable of reacting with the acid and also forming thereby hydrogen sulfide, comprising from about 5 to 95% by weight of an acid having an ionization constant of at least about 1.75.times.10.sup.-5, and an effective amount of a hydrogen sulfide scavenger agent providing a cation reactive with hydrogen sulfide to form a water-insoluble sulfide, whereby a substantial portion of the hydrogen sulfide is converted to said insoluble sulfide. The cations include Cu.sup.+2, Pb.sup.+2, Cd.sup.+2, Sb.sup.+3, and Sn.sup.+4, while typical acids are sulfuric, sulfamic, and oxalic. Preferred ranges, for a drain cleaner composition, are from about 40 to about 95% acid by weight, and from 2 to about 10% scavenger agent by weight. The compositions may be in solid form, or as an aqueous solution, containing preferably from 2 to 80% water. Corrosion inhibitors and carbon dioxide generating agents may be included. In a particularly preferred embodiment, ammonium chloride may be incorporated in an amount of from 0.1 to 10% by weight.
REFERENCES:
patent: 1371584 (1921-03-01), Urruty
patent: 1582974 (1926-05-01), Garbarino
patent: 1837118 (1931-12-01), Elder
patent: 2049517 (1936-08-01), Saukaitis
patent: 2257467 (1941-09-01), Jacobson
patent: 2497057 (1950-02-01), Pape
patent: 2631950 (1953-03-01), Rosenfeld et al.
patent: 2796334 (1957-06-01), Robinson
patent: 3173875 (1965-03-01), Wegst
patent: 3318815 (1967-05-01), Remler et al.
patent: 3353995 (1967-11-01), Teumac
patent: 3440170 (1969-04-01), de Hek
patent: 3538008 (1970-11-01), Ancel et al.
patent: 3740331 (1973-06-01), Anderson et al.
patent: 3791977 (1974-02-01), Ancel
patent: 3925229 (1975-12-01), Bolsing
patent: 3928211 (1975-12-01), Browning et al.
patent: 4014804 (1977-03-01), Anderson
patent: 4096871 (1978-06-01), Vlahakis
patent: 4220550 (1980-09-01), Frenier et al.
patent: 4222886 (1980-09-01), Connelly, Jr.
patent: 4244833 (1981-01-01), Tomaszewski
patent: 4276185 (1981-06-01), Martin
patent: 4289639 (1981-09-01), Buske
patent: 4339282 (1982-07-01), Lada et al.
patent: 4380501 (1983-04-01), Wojtowicz et al.
patent: 4395344 (1983-07-01), Maddox
Shaer Elias H.
Zembrodt Anthony R.
The Drackett Company
Willis Prince E.
Zeller Charles J.
LandOfFree
Method of cleaning clogged drains does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of cleaning clogged drains, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of cleaning clogged drains will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1562966