solution of 5 0 g 80 naclo 2 5 0 g of 3 h 2 o 2 and 12 8 g of 1m h 2 so 4 this was again reacted for 45 minutes at 70 u00b0 c the product was drained and washed treated with basic water at ph u02dc 10 and again washed analyses of the original and two treated samples gave the following results d p results of unstabilized materials are unreliable due to degradation in the alkaline cuene solvent handsheets were then made of the above three samples for study of color reversion after accelerated aging these were dried overnight at room temperature and 50 r h brightness was measured before and after samples were heated in an oven at 105 u00b0 c for 1 hour heated samples were reconditioned for at least 30 minutes at 50 r h results are as follows the superior brightness retention of the stabilized samples is immediately evident from the above test results a catalytic composition was formed by reacting 12 mg of tempo and about 2 ml of 7 g l clo 2 solution at 70 u00b0 c for about 1 minute the activated catalyst was added to a slurry of 41 g 10 g o d of northern mixed conifer.