Page 209 - PG 101-Course notes مذكرة النظري 24-25 with spec

Medicinal plants (PG 101) Level 1 Clinical Pharmacy-PharmD

Kaolin
Precipitated Chalk Precipitated Sulfur
(China clay, Kaolinite)

It is prepared by the reaction of Kaolin is a pure variety of clay Precipitated sulfur is
calcium chloride and sodium produced by the weathering prepared by addition of

carbonate. The temperature and decomposition of the hydrochloric acid to a
and time of reaction determine felspar of granite. It is almost solution of calcium

the sizes and shapes of chalk pure aluminum silicate. The sulfide and thiosulphate,

particles and hence its yellow tints of some kaolin which has been made by

commercial types (extra light, samples are usually due of the boiling together sulfur

light, medium and heavy). presence of traces of iron. and lime in water.

Uses Uses Uses

1- In manufacture of dentifrice 1- Mainly in the manufacture Sulfur is a mild

(heavy type is preferred). of pottery and ceramics. antiseptic and

2- As antacid, alone or mixed 2- As filter and clarifying parasiticide and has

with other soothing agent. been widely employed

component (light type is 3- As a medicinal agent for in the treatment of acne

preferred). the relief of certain gastric vulgaris and scabies in

and intestinal affections the form of lotion or

such as diarrhea due to cream.

bacterial toxins.

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