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The DARKROOM COOKBOOK, Third Edition

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Conversion Tables 333<br />

always possible to obtain this information. <strong>The</strong>refore, you may wish to consider the following<br />

as “standards” and maintain a consistent work habit.<br />

Dry Weight in Teaspoon<br />

Metric Grams Amount<br />

*Amidol 1.6 grams 1 teaspoon<br />

*Ascorbic acid 4.4 grams 1 teaspoon<br />

*Balanced Alkali 4.3 grams 1 teaspoon<br />

*Benzotriazole 0.2 grams ¹/ 8 teaspoon<br />

*Borax 3.8 grams 1 teaspoon<br />

Boric acid 4.1 grams 1 teaspoon<br />

Chlorhydroquinone 3.4 grams 1 teaspoon<br />

*Chrome alum 1.2 grams ¼ teaspoon<br />

*Citric acid 4.9 grams 1 teaspoon<br />

*Glycin 1.8 grams 1 teaspoon<br />

*Hydroquinone 3.3 grams 1 teaspoon<br />

*Metol 3.0 grams 1 teaspoon<br />

*Phenidone 0.5 grams ¼ teaspoon<br />

o-Phenylenediamine 3.5 grams 1 teaspoon<br />

*p-Aminophenol hydrochloride 2.6 grams 1 teaspoon<br />

p-Phenylenediamine 3.5 grams 1 teaspoon<br />

Potassium alum 1.5 grams ¼ teaspoon<br />

*Potassium bromide 1.9 grams ¼ teaspoon<br />

*Potassium carbonate 6.4 grams 1 teaspoon<br />

*Potassium dichromate 6.4 grams 1 teaspoon<br />

*Potassium ferricyanide 4.7 grams 1 teaspoon<br />

*Potassium permanganate 7.2 grams 1 teaspoon<br />

*Potassium persulfate 6.4 grams 1 teaspoon<br />

*Pyrocatechol 3.3 grams 1 teaspoon<br />

*Pyrogallol 2.3 grams 1 teaspoon<br />

*Silver nitrate 1.7 grams ¹/ 8 teaspoon<br />

*Sodium bisulfi te, anhyd. 5.5 grams 1 teaspoon<br />

*Sodium carbonate, anhyd. 4.8 grams 1 teaspoon<br />

*Sodium carbonate, mono. 6.3 grams 1 teaspoon<br />

*Sodium chloride 6.1 grams 1 teaspoon<br />

*Sodium hydroxide 4.0 grams 1 teaspoon<br />

*Sodium metaborate 4.6 grams 1 teaspoon<br />

*Sodium sulfate 6.4 grams 1 teaspoon<br />

*Sodium sulfi te, anhyd. 7.9 grams 1 teaspoon<br />

*Sodium thiocyanate 3.6 grams 1 teaspoon<br />

*Sodium thiosulfate 21.0 grams 1 Tablespoon<br />

*Thiourea 3.0 grams 1 teaspoon<br />

Tri-sodium phosphate 4.5 grams 1 teaspoon<br />

* Spoon measurements may differ slightly in weight each time. <strong>The</strong>se were measured and weighed on an Acculab electronic scale,<br />

four times each, and averaged by the author, using the very best teaspoon-leveling techniques taught to him by Ms. Abernathy in High<br />

School Home Ec.

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