Page 64 - Practical handout Lev 1-Pharm D- 2024-2025-with spec

Pharm D Level 1 Medicinal plants (PG 101)

China clay, kaolinite

Produced by weathering and decomposition of
Feldspar of granite
-Pure aluminium silicate
-Yellow colour due traces of iron

-Powder sinks in water surface
-Shape :- irregular plates
Uses:-
1- Heavy type as a filter aid and as a clarifying agent
2-light type as antidiarrheal agent due to absorption of bacterial toxins
3-Poultices formation

4-Precipitated Chalk Powder
Prepared by the reaction of calcium chloride and sodium carbonate

-Temperature and time of reaction decide the particle size
(Extra light & light & medium & heavy )
Uses :-
1-Heavy type for manufacturing of dentifrices
2-light type as antiacid with soothing agent

5-Preciptated Sulfur Powder

Prepared by addition of HCl to a solution of Calcium sulphide and thiosulphate
then boiling together

-It has yellow color

Uses :-1- Mild antiseptic
2-Parasiticide
(treatment of acne vulgaris) &(treatment of scabies) برجلا

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