Comments on: What Are The Chemical Formulas For These Chemicals Used In Photography? http://www.innogytech.com/what-are-the-chemical-formulas-for-these-chemicals-used-in-photography/ (Innogy subsidiary) UK Wed, 16 Dec 2009 23:34:34 -0500 http://wordpress.org/?v=2.9.2 hourly 1 By: North Star http://www.innogytech.com/what-are-the-chemical-formulas-for-these-chemicals-used-in-photography/comment-page-1/#comment-115 North Star Sun, 13 Dec 2009 15:50:27 +0000 http://www.innogytech.com/what-are-the-chemical-formulas-for-these-chemicals-used-in-photography/#comment-115 Developer: a mixture of metol ((C7H10NO)2SO4), phenidone (C9H10N2O), and hydroquinone (C6H4(OH)2). Stop bath: about 1 - 2 % acetic acid (CH3COOH). Fixer: Sodium thiosulfate (Na2S2O3). Hypoclear: Sodium sulfite (Na2SO3). Developer: a mixture of metol ((C7H10NO)2SO4), phenidone (C9H10N2O), and hydroquinone (C6H4(OH)2).
Stop bath: about 1 – 2 % acetic acid (CH3COOH).
Fixer: Sodium thiosulfate (Na2S2O3).
Hypoclear: Sodium sulfite (Na2SO3).

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