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Martin Marietta Magnesia Specialties
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  5. CellGuard - Model 35 - Magnesium Oxide ...

CellGuard - Model 35 -Magnesium Oxide for Pulp Bleaching

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CellGuard 35 is a high purity magnesium oxide processed from magnesium-rich brine and dolomitic lime. This fine white powder has a high reactivity index and a low bulk density. It contains lower levels of transition metals as compared to naturally occurring minerals.

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CellGuard 35 can be used as a cellulose protector in oxygen bleaching systems, as an alkali source in mechanical and recycled pulp peroxide bleaching, and as a partial substitute for caustic soda in the extraction stages of chemical pulp bleaching.