High Purity 46% Carbamide Urea Powder CAS 57-13-6 for fertilizer

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Carbamide Urea

Products Description

Name: Carbamide Urea

Cas: 57-13-6

Purity: 99%min


Basic Info:







Stock Availability

In stock

Brand Name

Look chem




Product Introduction:

Carbamide Urea, also known as urea and carbonamide, has the chemical formula CH4N2O. It is an organic compound composed of carbon, nitrogen, oxygen and hydrogen. It is white crystals (small balls). It is one of the simplest organic compounds and the main nitrogen-containing end product of protein metabolism and decomposition in mammals and certain fish.

Carbamide Urea is a neutral fertilizer suitable for a variety of soils and plants. It is a chemical nitrogen fertilizer that is convenient to store, easy to use, less harmful to the soil, and large in dosage. It is the nitrogen fertilizer with the highest nitrogen content. In industry, ammonia and carbon dioxide are used to synthesize Carbamide Urea under certain conditions.

Product Nature:

  • Melting point: 132-135°C(lit.)
  • Boiling point: 332.48°C(estimate)
  • Density: 1.335g/mLat25°C(lit.)
  • Refractive index: n20/D1.40
  • Storage conditions: 2-8°C
  • Solubility: H2O: 8Mat20°C


Product NameCarbamide Urea Powder
CAS No.57-13-6
Appearance White crystalline powder
Content99% min
Shelf Life2 years
Packing1kg/bag,25kg/bag or as your requirements

Product physical properties:

Carbamide Urea is easily soluble in water, 105g can be dissolved in 100ml water at 20℃. The aqueous solution showed a neutral reaction.

There are two types of Carbamide Urea products. Crystalline urea has strong hygroscopicity, showing white needle-like or prismatic crystals, and agglomerates after absorbing moisture. The moisture absorption speed is 12 times faster than that of granular urea.

Uric acid particles are semi-transparent particles with a particle size of 1-2mm, smooth appearance and greatly improved hygroscopicity. At 20°C, the critical moisture point is 80% relative humidity, but at 30°C, the critical moisture point drops to 72.5%, so Urea Powder should not be stored in humid climates in midsummer.

Adding hydrophobic substances, such as paraffin wax, to the production of Carbamide Urea can significantly reduce the hygroscopicity.

The chemical properties of Carbamide Urea:

  • Carbamide Urea can react with acids to form salts. There is hydrolysis. The condensation reaction can be carried out at high temperature to generate biuret, triurea and cyanuric acid. When heated to 160°C, it decomposes to generate ammonia gas and simultaneously generates isocyanic acid. This substance is called Carbamide Urea because it is contained in human urine. Urea Powder contains 46% nitrogen (N), the highest nitrogen content of all solid nitrogen fertilizers.

  • Urea Powder can be hydrolyzed to produce ammonia and carbon dioxide under the action of acid, alkali and enzyme (acid and alkali must be heated).

  • Heating is unstable, heating to 150~160℃ deamidation into a burette. The reaction of copper sulfate with the burette is purple, which can be used to identify elements. After rapid heating, deaminated and trimerized into six-membered ring compound cyanuric acid. [Mechanism of action: Deaminated first generates isocyanic acid (HN=C=O), and then generates trimer. ]

  • Acetyl chloride or acetic anhydride can be used to produce acetyl urea and diacetyl urea.

  • Carbamide Urea reacts with diethyl malonate under the action of sodium ethoxide to form malonyl urea (also known as barbituric acid because of its acidity).

  • Carbamide Urea can react with formaldehyde to form urea-formaldehyde resin under the action of alkaline catalysts such as ammonia and polycondensate.

  • Reacts with hydrazine hydrate to generate semicarbazide.


  1. Chlorides—Advances in Research and Application: 2013 Edition. ScholarlyEditions. 2013. p. 77. 
  2. PubChem. “urea cycle”pubchem.ncbi.nlm.nih.gov. Retrieved 28 June 2021.
  3. Wikipedia


Pre-Sales Service

* Timely reply and 24 hours online, the professional team will provide you with the most favorable prices and high-quality products.

* The sample supports testing and inspection.

* Each batch of products will be tested to ensure that its quality meets user needs.

*Packaging can also be made according to customer requirements.

*Any inquiries will be answered by our relevant personnel within 24 hours.

*We will provide you with commercial invoice, packing list, packing list, COA, health certificate and certificate of origin if you need it. If your market has other special requirements, please let us know.


After-Sales Service

*We will monitor the logistics information in real time and will share the information with you.

* You can consult us at any time if you have any questions about the product, and we will answer you in time.

*If you have any questions about the product, you can report it to us, we will deal with it in time for you, and the product can be returned.


1. ≤50kg, we recommend express delivery, usually called DDU service;

2. ≤500kg, air transportation is generally recommended, usually called FOB, CFR or CIF service;

3.>500kg, sea freight is generally recommended, usually called FOB, CFR or CIF service;

4. For high-value products, please choose air and express to ensure the safety of the products.


Do you accept sample order?

We will make samples before mass production. After the samples are approved by the department and users, we will start mass production. During the production process, we will carry out 100% inspection, and then carry out random inspection before packaging.

How to confirm whether the product quality meets our needs before placing an order?

You can consult us to get free samples of some products, you only need to pay the freight or arrange express delivery to us and get the samples. You can send us the product specifications and requirements you need, and we will manufacture products according to your requirements.

What’s your MOQ?

Our MOQ is 1kg. But usually we can also accept a smaller quantity, such as 100g, if you need it, provided that the sample fee is 100% paid.

Do you supply product report?

Yes. We’ll give you product analysis report before shipping.

  Is there a discount?

Different quantity has different discount.

Learn more about us

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Packaging and shipping

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Carbamide Urea