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Date: 28-8-2017
1099
Date: 11-9-2017
1005
Date: 23-11-2015
1152
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Uses of Urea
The major use of urea is the fertilizer field, which accounts for approximately 80% of its production (about 16.2 billion pounds were produced during 1994 in U.S.). About 10% of urea is used for the production of adhesives and plastics (urea formaldehyde and melamine formaldehyde resins). Animal feed accounts for about 5% of the urea produced.
Urea possesses a unique property of forming adducts with n-paraffins. This is used in separating C12-C14 n-paraffins from kerosines for detergent production
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علامات بسيطة في جسدك قد تنذر بمرض "قاتل"
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أول صور ثلاثية الأبعاد للغدة الزعترية البشرية
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مدرسة دار العلم.. صرح علميّ متميز في كربلاء لنشر علوم أهل البيت (عليهم السلام)
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