Crossword-Solution: CHROMIC 7 letters, 2 clues 🏆 scrabble score: 16

The salts of silver, mercury, gold, copper, nickel, and platinum, chromic and arsenious acids, cause great inflection with extreme quickness, and are deadly poisons.

From this report it appears that metallic pigments of a highly dangerous and even poisonous character, containing chromic acid, lead, copper, mercury, and arsenic, are commonly used in the colouring of such articles." If a child be never allowed to eat cakes and sweetmeats, he will consider a piece of dry bread a luxury, and will eat it with the greatest relish.

Chromic acid is employed in the form of a solution acidified with acetic or hydrochloric acid, which, in order to obtain the advantages (_see_ below) attendant upon the use of a solid purifying material, is absorbed in that highly porous and inert description of silica known as infusorial earth or "kieselguhr." This substance was first recommended by Ullmann, and is termed commercially "heratol" As sold it contains somewhere about 136 grammes of chromic acid per kilo.

Heratol changes, somewhat obscurely, in colour as it becomes spent, its original orange tint, due to the chromic acid, altering to a dirty green, characteristic of the reduced salts of chromium oxide.

The absence or exhaustion of the zinc in any one cell in a battery is indicated by the appearance of a red insoluble chromic salt of mercury, in a finely divided state, floating in the faulty cell.