TAKE A NE W LO Ο Κ ΑΓ

P R O P E R T I E S :

Molecular weighf-__ — 1 59.83

Atomic weight - 79.916

Specific gravity at 20/15°C. ._ 3.120

Pounds a gallon at 20°C _ 26.0

Boiling point _ .__ 58.8°C.

Freezing point...- - — 7 . 2 ° C .

Freely soluble in alcohol, ether, carbon

tetrachloride, chEoroform, concentrated H O ,

aqueous solutions of inorganic bromides.

S P E C I F I C A T I O N S :

Bromine, not less than 9 9 . 7 %

Specific gravity at 20 /1 5 ° C , not less than 3.1

Chlorine, not more than 0 .15%

Iodine None

Non-volatile, less than 0.01 %

Water Content 0 .003% Maximum

A NEW BROMINE PLANT* at E l Dorado, Arkansas, will provide a large, dependable source of high-quality bromine at lower de­livered cost in volume. This added capacity to our present pro­duction from plants at Saint Louis and Manistee, Mich, permits active research on this basic chemical element to take advantage o f bromine's unusual and unique properties and characteristics. In­vestigate the possibilities of bromine and bromides in your business.

* A joint-venture project of Michigan Chemical Corporation and Murphy Corporation of El Dorado, Arkansas.

2 5 1 4 C&EN M A Y 2 1, 1956

BR-Ο.ΜΐΝ-Ε-.

H I G H E R Y I E L D S Bromine compounds g ive higher processing yields in:

• Quarternary salt formations • Williamson ether synthesis • Alkylation of malonic or

acetoacetic esters • Reformatsky reactions • Nitrile formations • Hydrolysis to carbinols • Ullmann reactions • Grignard reactions in the

aromatic series.

PROCESSING A D V A N T A G E S

• Oxidation potential of bromine is lower than that of elemental chlorine or fluorine. This minimizes decom­position of hydrocarbons in halogenation reactions.

• Melting points of bromides are higher than those of chlorides or fluorides. This usually makes isolation eas­ier — an important advantage to the research chemist.

• Many reactions with brominated hydrocarbons may be carried out at atmospheric pressure and relatively low temperatures whereas the corresponding chlorides and fluorides require much more vigorous conditions to re­act. This may be an important processing advantage.

• Bromine is handled as a liquid — does not require pressurized equipment.

• Bromine compounds have exceptionally high densities — the highest of any organic compounds with few exceptions. This may be advantageous in processes involving liquid liquid separations.

• The very low vapor pressure of brominated hydro­carbons may be an important advantage in some applications.

• Various inorganic bromides are useful catalysts in reactions involving intramolecular rearrangements.

N E W P R O D U C T O P P O R T U N I T I E S

• Bromine imparts greater fire resistance to organic com­pounds than low molecular weight halogens. This property has proved useful in fire extinguisher fluids and in fire proofing cloth. It might also have advan­tages in plastics.

• Bromine and compounds which readily release bro­mine are active germicides, bactericides and algicides.

• Bromine compounds are valuable in the manufacture of dyes because they impart unique color tones.

» New pharmaceuticals are possible with bromine com­pounds as intermediates.

• Bromine compounds are useful in the synthesis of photographic chemicals, vitamins, cosmetics and flavors.

Michigan Chemical will be glad to aid you with your present bromide needs, or to help you in basic bromine research. Write or phone us.

MICHIGAN CHEMICAL CORPORATION 516 Bankson Street, Saint Louis, Michigan EASTERN SALES OFFICE: 230 Park Avenue, New York 17, New York

C-56-8

M A Y 2 I. I 956 C & E N 2 5 1 5

WliAT BROMINE OFFERS YCiU

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