Milestones In Hydride Chemistry
FROMPAERTOTEXTILES
TO
FOAM
New Processing Applications for Borohydrides In league with chemical processors around the world, MHI continues full tilt on the development of new applications for hydride chemistry. Application development for sodium and potassium borohydrides, for example, has opened exciting possibilities for chemists working in the pulp, paper, textile and plastic foam fields.
Reductive w o o d pulp bleaching Sodium borohydride and potassium borohydride are being used effectively as reductive bleaching agents for wood pulp and cellulosic textile materials and for stabilizing bleached materials to prevent color reversion or yellowing. For the first time, chemists now have a water soluble reagent which will selectively and quantitively reduce the aldehyde groups in oxidized cellulose.
Textile
finishers "clean u p "
The borohydrides quantitively and rapidly reduce aldehydes and ketones to alcohols in water or alcoholic solutions at room temperature and atmosphere. The borohydrides "clean up" trace amounts of residual aldehydes in organic products, preventing odor development and greatly improving color stability
for finishes using aldehyde-based resins. Borohydrides also reduce the carbonyl group in cellulose, introduced by oxidative bleaching, thus increasing resistance of the fibers to hot alkali.
Borohydrides make
better
foams
Borohydrides for producing vinyl foams offer versatile and inexpensive process possibilities using simple equipment. As blow* ing agents, the hydrogen yield of the borohydrides produces foams of fine, uniform cellular structure. Foam density is variable with the concentration of the borohydride. In addition to fine uniform cell structure, other advantages include low density, and low compression set.
N e w literature-technical service Qualified technical service in applying the borohydrides to your process is available without obligation. If you do not now have these new MHI literature releases, write for copies now!
P I O N E E R S IN HYDRIDE C H E M I S T R Y
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