Reports say that DS-10, created by Ryuji Suzuki, is comparable to XTOL. A few years ago, Ryuji said that he had improved DS-10, and implied that he would publicize the formula (see http://www.apug.org/forums/archive/i...p/t-25194.html). Did he ever make that improved formula public? His web-site no longer has his formulas, which is a pity.

Here's the formula of DS-10 from digitaltruth.com. I don't know if this is the improved formula:

Water ......................... 750 ml
Dimezone S .................... 0.15 g
Ascorbic Acid ................. 8 g
Boric Acid .................... 4 g (Ryuji: Use 2g to match XTOL's dev-time and pH of 8.2. Called "DS-10X")
Salicylic Acid ................ 1 g
Sodium Sulfite (anhydrous) .... 75 g
Triethanolamine, 99% .......... 10 ml (TEA)
Water to make ................. 1 L

Thanks,

Mark Overton