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See SODIUM HYDROXIDE, SODIUM CARBONATE, SODIUM META- BORATE, and SODIUM BORATE. ACHROMATIC COLORS-Colors perceived as having no hue (white, black, gray, and silver). ACHROMATISM -The absence of chromatic aberration.
Borax is recommended for the finest grain and lowest contrast, Sodium Metaborate for increased contrast accompanied with increased grain, and Sodium Carbonate for the highest contrast but with the greatest grain.
The production of an alkali on a large scale became an important goal as well, and a Frenchman, Nicolas Leblanc, succeeded in 1791 in introducing a method for the production of sodium carbonate.
Another, less drastic, way to increase pH is to add sodium carbonate, either as an aqueous solution or by dissolving the solid monohydrate, Na2CO3.H2O.
Accelerants are an akali, commonly sodium or potassium hydroxide, sodium carbonate, kodalk, or borax. Yes, that is the same stuff in the box at the grocery with that twenty-mule team on it.
A chemical ingredient of film or paper developers that's often referred to as an activator and speeds up the developing agents. It's usally an alkali such as sodium carbonate, borax or sodium hydroxide.
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soda lime glass
most common glass manufactured made from a combination of sand, limestone, and sodium carbonate.
 See also: Carbonate, Processing, Film, Developer, Image
  
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