sorel cement การใช้

• Bischofite is used in the production of the industrial Sorel cement and synthetic carnallite.
• Mixed with hydrated magnesium oxide, magnesium chloride forms a hard material called Sorel cement.
• Sorel cement as it is known has been used for grindstones, tiles, artificial stone and even artificial ivory ( e . g . for billiard balls ).
• Sorel cement was patented in 1867 by Frenchman Stanislas Sorel and was stronger than Portland cement but its poor water restive and corrosive qualities limited its use in building construction.
• Sorel cement, invented in 1867, was marketed as an artificial ivory ), John Wesley Hyatt invented a composition material in 1869 called nitrocellulose for billiard balls ( US patent 50359, the first American patent for billiard balls ).