Process for preventing lime deposits in a humidifier

Details Process for preventing lime deposits in a humidifier Process for preventing lime deposits in a humidifier

1976-04-12

1977-06-07

Spear, Jr., Frank A.

Liquid purification or separation

With alarm, indicator, register, recorder, signal or...

Responsive to fluid flow

252176, 252180, C02B 506

Patent

active

040282392

ABSTRACT:
A tablet-form preparation for the prevention of lime deposits in water systems. The table-form preparation contains (a) citric acid and at least one member selected from the group consisting of acetylsalicylic acid, boric acid and nicotinic acid, or (b) nicotinic acid. The tablet-form preparation contains 0.05 to 1 percent by weight of a formaldehyde resin condensation product when the preparation is citric acid and at least one member selected from the group consisting of acetylsalicylic acid and boric acid. A process of using the tablet-form preparation in a water system to prevent the formation of lime deposits in such water system, e.g., a humidifier. A process of tableting a preparation which comprises (a) citric acid and at least one member selected from the group consisting of acetylsalicylic acid, boric acid and nicotinic acid, or (b) nicotinic acid.

REFERENCES:
patent: 2916416 (1959-12-01), Buckwalter
patent: 2990328 (1961-06-01), Lincoln
patent: 3095862 (1963-07-01), Berner
patent: 3495001 (1970-02-01), Leonards
patent: 3652423 (1972-03-01), Roberts
patent: 3773922 (1973-11-01), Gergely
patent: 3789008 (1974-01-01), Young

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