G7
TYPES OF GLASS CONTAINERS FOR
PHARMACEUTICAL USE
Definition
• A GLASS is an organic material mostly silicates for ……
• Silicates(59-80%)
Types of glass
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Type 1 ( BOROSILICATES/NEUTRAL GLASS)
HAS HIGH HYDROLYTIC POWER
TYPE2( Treated with soda –lime glass/dealakalized soda lime glass)
It is treated with sulfur which neutralize alkaline oxide to make it chemical
inert.
Type 3
• Can be used for powder and sterilization
type4
• Only used for oral and topical preparation
• Can not be used for drugs that may be autoclaved
Factors affecting choice of glass to be used
• Thermal expansion
• Water hydrolytic resistance
• Resistance to calcium