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Which of the following is a principle binder used in carbon dioxide moulding?(a) Carbon(b) Carbon Dioxide(c) Sodium(d) Sodium silicateI got this question in my homework.Asked question is from Molding Processes topic in division Mold and Mold Making of Casting-Forming-Welding I

Answer»

The CORRECT choice is (d) Sodium SILICATE

The best explanation: Sodium silicate is the PRINCIPLE binder used in carbon DIOXIDE moulding process. The mixture of sodium silicate and sand is TREATED with carbon dioxide to form a bond.



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