10 Questions
What is the chemical formula of gypsum?
CaSo4·2H2O
Which type of gypsum is known as dental stone?
Type III
Which variety of gypsum has bigger, irregular, spongy or porous particles?
β-hemihydrate
At what temperature does β-hemihydrate gypsum undergo calcination?
110-130°C
How is Type II gypsum obtained?
By heating fine powder of gypsum in an open pan or kettle
What is the chemical composition of gypsum in its dihydrate form?
CaSO4·2H2O
What is Type I gypsum commonly known as?
Impression plaster
At what temperature range does gypsum become an anhydrate that is soluble?
130-200°C
Which type of gypsum is known for being more dense and less porous?
α-hemihydrate
What type of gypsum is Type IV also known as?
Improved stone
Test your knowledge of gypsum manufacturing processes and its chemical composition in this quiz. Learn about the different varieties of gypsum products and their specific properties.
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