Mr. Lavoisier, noticing the Crown Prince's eyes gleaming with excitement, hurriedly explained, "Your Highness, if you only need a few thousand kilograms of casein glue each month, then an investment of 5,000 livres should suffice. However, if you require 50,000 kilograms, we would face a severe shortage of raw materials such as soda ash and water glass. Oh, the current soda ash production in the vicinity of Paris is only enough to produce 1,000 kilograms of casein glue per month."
"So, you must first invest in a workshop for the production of soda ash, and the scale would be extremely large.
"You see, to produce soda ash, we must first build a Reverberatory Furnace and a workshop for the production of sulfuric acid. This alone would require at least 800,000 livres. Plus, producing water glass, purifying quicklime..."