ALABAMA
WHEREVER YOU ARE . . .
Birmingham Mobile
THERE'S A DISTRIBUTOR
Los Angeles San Francisco
OF DU PONT UREA READY TO SERVE YOU
3 8
C&EN
AUG.
5,
1957
0
F. H. Ross & Co. F. H. Ross & Co. CALIFORNIA Braun Corporation Braun-Knecht-Heimann Co. CONNECTICUT
South Norwalk Merchants Chemical FLORIDA Jacksonville F. GEORGIA Atlanta F. Columbus F. Savannah F. ILLINOIS Chicago Central Solvents &
INDIANA Ft. Wayne Hoosier Solvents & Chemicals Corp. Indianapolis..Hoosier Solvents & Chemicals Corp. Louisville
KENTUCKY Merchants Chemical Co., Inc.
New Orleans
LOUISIANA Barada & Page, Inc.
isaltimore
MARYLAND Leidy Chemicals Corp.
H. Ross & Co. H. Ross & Co. H. Ross & Co.
Fall River Stoneham Worcester
M ASS AC H U S ETTS Borden & Remington Co. George IVIann & Co., Inc. Chemical Sales & Service Co., Inc.
Chemicals Co.
Detroit
Company, Inc. H. Ross & Co.
MICHIGAN Eaton Chemical & Dyestuff Co.
Du Pont chemical experience is the reason.. »
You can count on Du Pont Crystal and Shotted Urea for highest purity A product of continued research and d e v e l o p m e n t —Du Pont U r e a is conveniently supplied through a n a t i o n w i d e n e t w o r k of distributors. D u P o n t Urea provides highest quality and consistent uniformity wherever it's used. Many processors prefer the timeproven, pure, crystal form; others find the newer, free-flowing "shotted" urea meets their high standards and also makes possible reduced handling costs. Both forins of Du Pont Urea are equally dependable in performance—both a r e readily available from your local distributor. D u Pont Urea effectively serves in a wide number of chemical applications. For example . . . its reactivity witih aldehydes makes D u Pont Urea extremely valuable i n the manufacture of urea-formaldehyde thermosetting resins for adhesives, protective finishes and molding compositions. I t i s also used extensively in t h e treatment of paper a.nd textiles. If your production or development work requires high quality and performance of urea, why not take advantage of over 20 years of research experience responsible for t n e exacting manufacture of D u Pont Urea? Your local distributor can provide immediate shipment of both Crystal and Shotted Urea in 100-lb. multi-ply paper bags. And remember, too, a D u P o n t Technical Representative is always available for assistance when you deal with any of the distributors listed below.
FORMULA: Typical
CO(NH2)2
Analysis
for Crystal U r e a : p H (10% solution a t 20° C.)
8.3
Moisture
0.25%
Ash
II
ppm
Free A m m o n i a
4 ppm
Iron
0.4 p p m
C o l o r , A P H A (10 gm. i n 100 ml. m e t h a n o l ) . . . . T u r b i d i t y , A P H A (50 g m . in 100 ml. w a t e r a t 25° C.) Typical
2
5 ppm
Analysis
for "Shotted" Urea: pH
(10% solution a t 20° C.)
9.4
Moisture
0.17%,
Ash
35 ppm
Free A m m o n i a
150 p p m
Iron
0.9 p p m
C o l o r , A P H A (10 g m . in 100 ml. m e t h a n o l ) . . . . *EG. U.S. PAT. Off-
BETTER
THINGS
FOR
BETTER
LIVING
,
THROUGH
CHEMISTRY
T u r b i d i t y , A P H A .(50 g m . in 100 ml. w a t e r a t 40° C.)
2
7 ppm
POLYCHEMICALS DEPARTMENT Minneapolis
MINNESOTA Merchants Chemical Co., Inc. MISSISSIPPI
Jackson
F. H. Ross & Co.
MISSOURI Kansas City Barada & Page, Inc. St. Louis Barada & Page, Inc. St. Louis Missouri Solvents & Chemicals Co. Newark Paterson
NEW JERSEY National Oil & Supply Co. Brown Chemical Co., Inc.
NEW YORK Buffalo.. ..Chemical Sales Corp. Hicksville, Long Island National Oil & Supply Co. New York Merchants Chemical Co., Inc.
NORTH CAROLINA F. H. Ross & Co. F. H. Ross & Co. F. H. Ross & Co. OHIO Cincinnati Merchants Chemical Co., Inc. Cleveland Ohio Solvents & Chemicals Co. Columbus Merchants Chemical Co., Inc. OREGON Portland Van Waters & Rogers, Inc. PENNSYLVANIA Altoona Western Penna. Chemical Co., Inc. Erie Western Penna. Chemical Co., Inc. Middletown (Harrisburg) Western Penna. Chemical Co., Inc. Philadelphia Pioneer Salt Co. RHODE ISLAND Providence Borden & Remington Co. Providence George Mann & Co., Inc.
Charlotte Greensboro Raleigh
SOUTH CAROLINA F. H. Ross & Co. F. H. Ross & Co. TENNESSEE Chattanooga Burkart-Schier Chemical Co. Knoxville Burkart-Schier Chemical Co. Knoxville F. H. Ross & Co. Nashville Burkart-Schier Chemical Co. TEXAS Dallas Van Waters & Rogers, Inc. Houston Van Waters & Rogers, Inc. UTAH Salt Lake City Braun-Knecht-Heimann Co. WASHINGTON Seattle Van Waters & Rogers, Inc. WISCONSIN Milwaukee Merchants Chemical Co., Inc. Columbia Greenville
AUG.
5,
1957 C&EN
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