Crossword-Solution: ABRASIVES 9 letters, 7 clues 🏆 scrabble score: 14

The output of artificial abrasives in the United States and Canada for 1917 was: Tons Value Silicon carbide 8,323 $1,074,152 Aluminum oxide 48,463 6,969,387 A new use for carborundum was found during the war when Uncle Sam assumed the rôle of Jove as "cloud-compeller." Acting on carborundum with chlorine--also, you remember, a product of electrical dissolution--the chlorine displaces the carbon, forming silicon tetra-chloride (SiCl_{4}), a colorless liquid resembling chloroform.

Before the introduction of the artificial abrasives fine grinding was mostly done by emery, which is an impure form of aluminum oxide found in nature.

Tone says, if the automobile manufacturers were deprived of Niagara products, the abrasives, aluminum, acetylene for welding and high-speed tool steel, a factory now turning out five hundred cars a day would be reduced to one hundred.

Sundry Applications Stock bedding, poultry litters, fillers in feeds and fertilizers, mulches, charcoal, tannin and abrasives in hand soaps are some of the other products that are prepared from nut shells.

However, due to the accumulation of metal fouling, pitting (little hollows in the metal) or the presence of dust, or other abrasives (substances that cause the metal to wear away by rubbing), the fouling may occur in clearly visible flakes or patches and be much more difficult to remove.