Manufacturing clear potassium sulfite

Details Manufacturing clear potassium sulfite Manufacturing clear potassium sulfite

1995-05-11

1996-10-22

Straub, Gary P.

Chemistry of inorganic compounds

Sulfur or compound thereof

Oxygen containing

423264, 423265, 423519, C01B 1742

Patent

active

055674062

ABSTRACT:
Disclosed is a method of manufacturing potassium sulfite from a potassium hydroxide feedstock. A feedstock is tested for the presence of iron and, if the feedstock contains less than 0.3 ppm of iron, it is reacted with sulfur dioxide in an aqueous solution to form potassium sulfite. Alternatively, potassium sulfite that has a yellow or brownish color can be decolorized by adding about 0.02 to about 0.8 wt % hypophosphorous acid to it.

REFERENCES:
Comprehensive Inorganic Chemistry, vol. I, pp. 505-506 Pergamon Press NY NY (1973).
Inorganic Synthesis, vol. II, pp. 166-167, McGraw Hill NY NY 1946.

Affiliated with

Also associated with

Rating

Manufacturing clear potassium sulfite does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Manufacturing clear potassium sulfite, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Manufacturing clear potassium sulfite will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2356577