Where can I buy Urea in its Pure form?
-
ANyone has any idea on how I can get my hands on Urea?
-
Nobody knows?
-
wad u want it for? buy from bio-rad lor..order online or through catalogue
-
I want to try out some experiments...Originally posted by borntolive:wad u want it for? buy from bio-rad lor..order online or through catalogue -
u want to make bomb issit?
well, jus collect bird sh1t then..its a highly concentrated form of urea -
if u want to buy u must buy in bulk i thinkOriginally posted by shade343:I want to try out some experiments... -
But is it in its pure form?Originally posted by alexkusu:u want to make bomb issit?
well, jus collect bird sh1t then..its a highly concentrated form of urea
-
produce it from your own urineOriginally posted by shade343:ANyone has any idea on how I can get my hands on Urea?
-
Maybe you could try the pharmacy of National Skin Centre. May be cheaper too.
-
Urea is a very poisonous product in its pure form. Why you want that? Not recommended.
-
dig from liver... its v pure..Originally posted by shade343:ANyone has any idea on how I can get my hands on Urea? -
Urine does have urea, but no longer pure. It has been intoxicated by kidneys.Originally posted by crazy monkey:produce it from your own urine
Real urea very poisonous. -
Yeah... In fact, there is a test called the Urea Breath Test when patients are supposed to drink it, but one of its atom is radioactively labelled... When it is taken in by the patient, the bacteria (H pylori) in the stomach will break the compound down into carbon dioxide and ammonia... the person will then blow into a reagent in a test tube, and if the radioactive compound is present (13C), it will change the color of the reagent...Originally posted by ndmmxiaomayi:Urine does have urea, but no longer pure. It has been intoxicated by kidneys.
Real urea very poisonous. -
What is this test for?Originally posted by renorenal:Yeah... In fact, there is a test called the Urea Breath Test when patients are supposed to drink it, but one of its atom is radioactively labelled... When it is taken in by the patient, the bacteria (H pylori) in the stomach will break the compound down into carbon dioxide and ammonia... the person will then blow into a reagent in a test tube, and if the radioactive compound is present (13C), it will change the color of the reagent... -
For patients presenting with symptoms of gastritis, to rule in the presence of Helicobacter pylori (which is the main cause of peptic ulcer disease)...Originally posted by ndmmxiaomayi:What is this test for?
The bacteria produces an enzyme called urease which breaks down urea into carbon dioxide and ammonia... the CO2 is exhaled into a reagent and it will turn color if the 13CO2 (radioactively labelled) is present... if there is not H pylori in the stomach, the reagent will not change color, because there is no production of urease... -
I hate chemistry~!!!
-
dzi beads r by products of chemisty reactionsOriginally posted by Mr Fugue:I hate chemistry~!!! -
i think someone want to make a dirty bomb.....
-
Ammonia after going through some nitration process and you have ammonium nitrate which is the bomb materialOriginally posted by renorenal:For patients presenting with symptoms of gastritis, to rule in the presence of Helicobacter pylori (which is the main cause of peptic ulcer disease)...
The bacteria produces an enzyme called urease which breaks down urea into carbon dioxide and ammonia... the CO2 is exhaled into a reagent and it will turn color if the 13CO2 (radioactively labelled) is present... if there is not H pylori in the stomach, the reagent will not change color, because there is no production of urease... -
If I knew chemistry, I'll make dzi beads myself~!!Originally posted by alexkusu:dzi beads r by products of chemisty reactions -
also can make bomb from fertiliser wat...ammo nitrate alsoOriginally posted by maggot:Ammonia after going through some nitration process and you have ammonium nitrate which is the bomb material -
Originally posted by maggot:Ammonia after going through some nitration process and you have ammonium nitrate which is the bomb material
The Legend of Zorro 2Originally posted by alexkusu:also can make bomb from fertiliser wat...ammo nitrate also
-
Other uses of urea from Wikipedia: (http://en.wikipedia.org/wiki/Urea)
Industrial use
Urea's commercial uses include:
* As a raw material for the manufacture of plastics specifically, urea-formaldehyde resin.
* As a component of fertilizer and animal feed, providing a relatively cheap source of fixed nitrogen to promote growth.
* As an alternative to rock salt in the deicing of roadways and runways. It does not promote metal corrosion to the extent that salt does.
* As an additive ingredient in cigarettes, designed to enhance flavor.
* Sometimes used as a browning agent in factory-produced pretzels.
* As an ingredient in some hair conditioners, facial cleansers, bath oils and lotions.
* It is also used as a reactant in some ready-to-use cold compresses for first-aid use, due to the endothermic reaction it creates when mixed with water.
* Active ingredient for diesel engine exhaust treatment AdBlue.
Laboratory use
Urea is a powerful protein denaturant. This property can be exploited to increase the solubility of some proteins. For this application it is used in concentrations up to 10M.
Medical use
Drug use
Urea is used in topical dermatological products to promote rehydration of the skin.
Physiological diagnosis
See also blood urea nitrogen for a commonly performed urea test, a marker of renal function
Because urea is produced and excreted at a roughly constant rate, high levels of urea in the blood indicate a problem with the removal or, more rarely, the over-production of urea in the body.
The most common cause of uremia is renal problems. It is measured along with creatinine to indicate direct problems with the kidneys (e.g., chronic renal failure) or secondary problems such as hypothyroidism.
Urea levels can be increased also in some malignant blood disorders (e.g., leukaemia and multiple myeloma).
Markedly high levels of urea (uremia) can cause neurological disturbances (encephalopathy). Prolonged periods of uremia may result in the skin taking on a grey discolouration or even forming frank urea crystals ("uremic frost"). -
or osama bin laden 2Originally posted by renorenal:The Legend of Zorro 2 -
Got the movie meh? Hehehe... I know Osama The Movie got lar...Originally posted by kc_leung:or osama bin laden 2