WEIGHT TO VOLUME EQUIVALENCY CHART

Using this table, you will be able to mix formulas without using a gram scale. This chart gives equivalencies in tablespoon and teaspoon fractions, so you can measure out chemical amounts using cooking measuring spoons. For example, 1 tablespoon of potassium dichromate equals 22 grams. 1/4 teaspoon will hold 0.85 grams of of Elon, etc.


Weight listed in Grams

 Chemical   1 TBSP  1/2 TBSP  1 TSP  1/2 TSP  1/4 TSP  1/8 TSP
 amidol  7  3.5  2.3  1.2  0.7  0.4
 benzotriazole  6 3 2.1 1 0.5 0.25
borax 15 7.5 5 2.5 1.3 0.7
 boric acid  12 6 4.1  2  1 0.5
 chlorquinol  9.7 5 3.4 1.7 0.8 0.45
 glycin  4.1 2.1 1.4 0.7 0.35 0.2
 hydroquinone  9  4.5  3  1.5 0.75 0.4
 Kodalk (Kodak balanced Alkali)  14.5  7.2  4.8  2.4  1.2  0.6
 Metol (or Elon)  10.5  5.25  3.5  1.75  0.85  0.45
 phenidone  6  3  2  1  0.5  0.25
 potassium alum  16.8  8.4  5.6  2.8  1.5  0.8
 potassium bromide  19.5  10  6.5  3.2  1.6  0.8
 potassium dichromate  22  11.5  7.9  4.1  2.2  1.1
 potassium ferricyanide  15.5  8  5.5  2.8  1.5  0.8
 silver nitrate  41  20.7  13.8  7  3.6  1.8
 sodium bisulfate   22.9  11.5  7.7  4  2  1
 sodium bisulfite  18  9  6  3  1.5  0.75
 sodium carbonate  18  9  6  3  1.5  0.75
 sodium sulfate  22.5  11.4  7.7  3.8  2  1
 sodium sulfite  22.8  11.4  7.6  3.8  1.9  1
 sodium thiosulfate  18  9  6  3  1.5  0.75

Source: Beyond Basic Photography, by Josh Horenstein, 1977.


1