Chloride of Lime is obtained by passing chlorine over hydrate of lime till saturation is effected. It is in the form of a grayish-white substance, either in powder or friable masses, dry or but slightly moist. It is readily soluble in water, and will absorb moisture when exposed to the air. It has a bitter, caustic taste, and a slight odor of chlorine.

Medical Properties And Action

Chloride of lime is a stimulant, deodorizer, disinfectant, antiseptic and bleaching agent. In small doses it increases the action of the secreting organs, and if long continued it acts specifically upon the lymphatic glandular system, causing the reduction or absorption of glandular and other tumors. In large doses it acts as an acro-narcotic poison, and its use should always be commenced in small doses, carefully increased, and discontinued when such symptoms as nausea, vomiting or giddiness appear. It is chiefly used as a disinfectant.

Therapeutic Uses

Solutions of chlorinated lime are employed locally in scarlet fever, diphtheria, aphthae, gangrene; and it has been administered internally in scrofula, typhus, malignant scarlet fever, syphilis, etc.


Of chloride of lime, gr. j to gr. v, in solution, several times a day. As a wash, 1 part dissolved in 100 parts of water.

Dental Uses

Chloride of lime is employed in dental practice in the treatment of cancrum oris; one method of application being the introduction of the dry powder, with the point of the finger, to the ulcerated surfaces, and the mouth well washed out immediatelv afterward; also, in the form of a gargle composed of I part of powdered chloride of lime to 30 parts of mucilage and 15 parts of syrup. Solutions of chloride of lime are also efficient in scorbutic and other ulcerations of the mouth. It is also employed to correct the fetor of the breath, in the form of a mouth wash, prepared as a weak solution.

One of the most important uses in dental practice is as a bleaching agent, either alone or in combination with other substances, to restore the color of devitalized teeth. When chlorinated lime is employed for bleaching discolored teeth, a good quality should be obtained, and no steel instrument used for its introduction; wood or gold instruments are to be preferred, and the chloride should be perfectly dry, and have been kept so from the time it was made. An efficient bleaching preparation is composed of equal parts of dry chlorinated lime and tartaric acid, mixing them together dry, and adding a little of the acid at a time. When prepared, the mixture should be kept in a glass-stoppered bottle. For bleaching purposes, chlorinated lime is also combined with chloroform, in the form of a thin paste. When chlorinated lime, or its combinations, is introduced into the cavity of a tooth, it should be secured by a temporary filling of gutta percha, Hill's Stopping, or one of the zinc preparations, and be secured from passing beyond the foramen of the root, by a filling introduced near the apex of the root. More than one application may be required, after which the cavity should be thoroughly cleansed, and a temporary filling of the whitest shade of the oxychloride of zinc filling material be introduced and worn for some time, after which a more durable gold filling can be inserted.

Dental Formulae

For Gangrene of the Mouth - Can-crutn Oris.


Calc. chlorat.....


Aquae destil.....


To be used as a lotion.

Signa 738Signa 739

For Fetor of the Breath. Bartholow.

Calc. chlorat.....

Aquae destil.....


Ol. rosae......gtt.iv. M.


A teaspooriful in a tumblerful of water; used as a gargle.

Signa 740Signa 741