1 Brands: Tums, Caltrate, and most other brands.  Absorption: Calcium carbonate is alkaline based. It requires extra stomach acid for better absorption, so it is best taken right after meals or with a glass of acidic juice such as orange juice.
Tempered glass is one of two kinds of safety glass regularly used in applications in which standard glass could pose a potential danger. Tempered glass is four to five times stronger than standard glass and does not break into sharp shards when it fails. Tempered glass is manufactured through a process of extreme heating and rapid cooling, making it harder than normal glass.
There are pros and cons to each, and each customer is different based on the use of the glass. Tempered vs Annealed Glass. APPLICATIONS This is one of the most common questions that we get at Floyd Glass & Window. There are many applications for tempered glass. It is used commercially in glass doors that have no frames.