Page 156 - Pharmaceutical Analytical Chemistry III

Determination of total solid.
• take a weight of crucible.
• weigh 5 g of milk in a crucible
• put a crucible in a water bath until dryness.
• after complete dryness put the crucible in an oven,

and weigh after cooling.
• determination the percent of total solid.
• %Of total solid = (wt of crucible +sample) after drying

– wt of crucible * 100

wt of sample

155