COLUMBIA'S TECHNICAL STAFF PRESENTS
/ ;:v ^ 3 ^ ~£ύ ^J3\? ' :V li 5 Ξ --ν A USEFUL REAGENT ESPECIALLY FOR REACTIONS INVOLVING ORGANIC COMPOUNDS
^•Columbia Thionyl Chloride is a colorless to pale yellow S
y
liquid possessing an acrid odor similar to that of a mixture of sulfur dioxide and hydrogen chloride. I t is useful as a reagent in a variety of chemical reactions, especially involv ing organic compounds. For example, Thionyl Chloride may
/
be used in the conversion of organic acids to acid chlorides,
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and in other chlorination as well as in dehydration reactions. Thionyl Chloride is often superior to phosphorus chlorides for such purposes since the byproducts formed, i.e., sulfur dioxide and hydrogen chloride, are gaseous and easily removable. Thionyl Chloride also is useful in introducing sulfur, or sulfur and oxygen, into organic molecules. Technical Bulletin T-308 presents physical properties a n d a number of typical reactions. M a y we send you a copy? Should you wish a sample of Thionyl Chloride for experi mentation, please write us on your company letterhead.
COLUMBIA
CHE M I C A L S
COLUMBIA ESSENTIAL INDUSTRIAL CHEMICALS t
P I T T S B U R G H PLATE GLASS COMPAN Ï* COLUMBIA CHEMICAL DIVISION FIFTH AVENUE at BELLEFIELD, PITTSBURGH 13, PENNA. · Chicago · Boston
· St. Louis
Pittsburgh · New York · Cincinnati · Cleveland · Philadelphia · Minneapolis · Charlotte · San Francisco VOLUME
2 4,
NO.
17
> SEPTEMBER
10,
1940
Soda Ash · Caustic Soda · Liqjuid Chlorine • Sodium Bicarbonate « Pittchlor (Calcium Hypochlorite) · Silène EÇ (Hydrared Calcium Silicate) · Calcium Chloride · Soda Briquettes · Caustic Ash · Phosflake • Calcene Τ (Precipitated Calcium C o r bonate) « Modified Sodas.
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