D - Textiles – Paper – 21 – C
Patent
D - Textiles, Paper
21
C
8/81
D21C 9/10 (2006.01)
Patent
CA 1061509
ABSTRACT An aqueous composition for bleaching wood pulp containing sodium hydrosulfite, and at least 2 weight percent hexamethylenetetramine based upon the weight of sodium hydrosulfite, wherein the solution has a pH between about 4 and about 11. The hexamethylenetetramine prevents or substantially reduces hydrogen sulfide formation during bleaching of the wood pulp.
236910
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