Hot Products Urea CAS 57-13-6
Name: Urea
Cas: 57-13-6
Purity: 99%min
MOQ: 1KG
Basic Info:
| CAS No: | 57-13-6 |
| Formula: | CH4N2O |
| EINECS: | 200-315-5 |
| Stock Availability | In stock |
| Brand Name | Zhishang chemical |
| Origin | China |
Chemical Structure
Product Introduction:
What is Urea?
Urea, also known as carbamide or carbonamide, is the end product of protein metabolism in humans and mammals and a major organic nitrogen compound excreted by animals. Pure urea appears as white granules, needles, or prismatic crystals. Containing heavy metals such as iron, it appears light red or yellow.
Synthesis method of urea
1.When the temperature is below 20 ℃ and the relative humidity is below 70%, Urea not only does not absorb moisture, but also evaporates water and reduces its moisture content.
2. When the temperature exceeds 20 ℃ and the relative humidity is above 80%, Urea begins to absorb moisture, and in severe cases, it becomes a paste. When the air becomes dry again, it will re agglomerate, second only to ammonium nitrate. At 80 ℃, urea aqueous solution undergoes hydrolysis and decomposition reactions, forming ammonium formate, ammonia gas, and carbon dioxide, respectively.
3. Under acidic and alkaline conditions, urea decomposes faster when exposed to heat.
4. Urea easily combines with linear carbohydrates to form crystalline additional compounds.
5. Urea forms with various inorganic compounds separately Ca(NO3)2·4CO(NH2)2、NH4Cl·CO(NH2)2、CaChemicalbookSO4·4CO(NH2)2、MgSO4·4CO(NH2)2·3H2O、Mg(NO3)·4CO(NH2)2·2H2O Waiting for various types of double salts; Easy to form urea phosphate, dicalcium phosphate, and water with monocalcium phosphate, namely Ca (H2PO4) 2 · H2O+CO (NH2) 2 → H3PO4 · CO (NH2) 2+CaHPO4+H2O.
6. Urea and nitric acid can easily react to form nitrate urea that combines and relaxes, with CO (NH2) 2+HNO3 → CO (NH2) 2 · HNO3.
7. Urea can combine with formaldehyde to form urea formaldehyde compounds (uric acid gels), with urea resin having a higher proportion of formaldehyde and slow-release (effective) urea having a lower proportion.
Effects of urea on plants
1. Promotes Vegetative Growth
Leaf Development: Enhances leaf photosynthesis, resulting in dense, green, and plump leaves, especially effective for leafy vegetables (such as spinach and cabbage).
Stem Growth: Promotes cell division and elongation, accelerating stem and branch growth.
2. Improves Yield and Quality
Fruit and Seed Formation: Nitrogen is fundamental to plant reproductive growth. Appropriate amounts of urea can increase fruit quantity and seed plumpness.
Protein Synthesis: Increases crop protein content, improving the nutritional value of grain and feed crops.
Urea is a highly efficient nitrogen fertilizer that significantly promotes plant growth.
Effects of urea on the skin
Urea has moisturizing, keratin-softening and mild antibacterial effects on the skin. It is a common ingredient in skin care products (usually in a concentration of 3% to 10%) and is mostly used in moisturizers, hand and foot care products and medical preparations.
Nature and Specifications:
Urea Chemical Properties
- Melting point 132-135 °C(lit.)
- Boiling point 332.48°C (estimate)
- density 1.335 g/mL at 25 °C(lit.)
- bulk density 720-760kg/m3
- vapor pressure <0.1 hPa (20 °C)
- refractive index n20/D 1.40
- storage temp. 2-8°C
- Solubility H2O: 8 M at 20 °C
| Item | Specification |
| Product Name | Urea |
| CAS No. | 57-13-6 |
| Appearance | White to yellow-white powder |
| Shelf Life | 2 years |
| Packing | 1kg/bag,25kg/bag or as your requirements |
Product Packaging
Product Usage:
1. Physical and chemical properties
- Urea, also known as urea or carbamide, is a final product of protein metabolism in humans and mammals, and a major organic nitrogen compound excreted by the animal body.
- Granular urea： The pure product of Urea appears as white granular, needle-shaped, or prismatic crystals, and when mixed with heavy metals such as iron, it appears light red or yellow.
- Odourless and tasteless, easily soluble in water, ethanol, and benzene, but insoluble in ether and chloroform.
- At 20 ℃, 100 kilograms of water can dissolve 105 kilograms of urea, and heat is absorbed during dissolution. The aqueous solution exhibits a neutral reaction.
- The nitrogen content of pure urea is 46.65%, while that of agricultural urea is 42% to 46%. It contains a small amount of urea, generally less than 2%, and is usually harmless to crop growth. The specific gravity and bulk density of urea are relatively small, with a fertiliser weight of 0.65 tons per cubic meter.
2. Nitrogen fertiliser
- Urea for plants is a high-quality and efficient nitrogen fertiliser. Germany began to use urea as a fertiliser after the end of World War I.
- Practice has proven that urea has high nitrogen content and no by-products, and has shown good yield-increasing effects on all crops.
- After the 1950s, urea became a key nitrogen fertiliser type developed worldwide. Global urea production increased 10.5-fold in the 15 years between 1960 and 1975. Starting in the 1970s, it gradually replaced ammonium nitrate to become the world’s most widely used nitrogen fertiliser. Urea sales have also drawn attention.
- After urea is applied to the soil, a small portion is absorbed by plants in the form of amides, while the majority undergoes ammonification under the action of urease, converting into ammonia, which is then absorbed by plants. The decomposition rate depends on the soil’s chemical properties, temperature, and moisture content, usually within 3-10 days. Therefore, the fertiliser efficiency of urea is longer than other nitrogen fertilisers, and nitrogen loss is also less.
- Urea is an ideal fertiliser for root dressing, as it does not contain harmful components to crops, is neutral, does not burn stems and leaves, has strong moisture absorption, and is easily absorbed by crops as it seeps into the leaves with water. The concentration of topdressing outside the roots is generally 0.5% to 2%. To improve the utilisation efficiency of urea, in addition to correctly mastering the properties and application conditions of urea, attention should also be paid to rational application.
- Urea fertiliser does not contain harmful ingredients. Its hydrolysis products NH+4 and HCO-3 can be absorbed and utilised by crops. Continuous application generally has no adverse effects on soil properties.
- Suitable for various crops and soils, its fertiliser efficiency is similar to that of ammonium sulfate with equal nitrogen content. Used for “ageing” paddy fields that lack active iron and are prone to hydrogen sulfide poisoning, the effect is better than ammonium sulfate.
- Excessive use of urea or high levels of urea can easily cause ammonia and urea toxicity to crops; The higher the urease activity of crops, the more sensitive they are to the toxicity of urea and biuret.
- Urea can be used as a supplementary feed for anti-chick animals. In industry, urea is a raw material for the synthesis of urea formaldehyde, melamine formaldehyde resin, etc.
3. Pharmaceutical Industry
- Used in medicine to manufacture drugs such as tetracycline, phenobarbital, etc.
4. Dye Industry
- The dye industry uses it to produce reduced brown BR, phthalocyanine blue B, etc.
5、Storage
- Urea-lined plastic film and outer woven bag packaging. Urea should be stored in a dry warehouse and should not be stored or mixed with acidic substances.
Related References:
Product Service:
1. Certificate Of Analysis (COA)
2. Material Safety Data Sheet (MSDS)
3. Route of synthesis (ROS)
4. Method of Aanlysis (MOA)
5. Nuclear Magnetic Resonance (NMR)
6. Packing pictures and loading video before loading
7. Free Sample
8. Factory audit
Our Metrics
Our factory has advanced product production lines, and stable production capacity, which can achieve the goal of quickly providing high-quality products.
Our company is equipped with first-class equipment for the product production line to ensure the product quality to the greatest extent, to ensure that the net weight of the product is accurate, the packaging is well sealed, and it can meet the needs of long-distance transportation for export.
The Urea produced by our company has stable performance and a wide range of uses, which can meet the various needs of different customers.
The product price is competitive, and it has a good reputation and market share in countries all over the world.
If you need Urea or related products, please contact our company directly. Professional production and perfect service will definitely make you satisfied.
1. For products ≤50kg, we recommend using express delivery, which is usually called DDU service (discounted, convenient).
2. For products ≤500kg, we generally recommend air freight, which is usually called FOB, CFR or CIF service (fast and efficient).
3. For products >500kg, we generally recommend shipping by sea, which is usually called FOB, CFR or CIF service (economical, safe).
4. For high-value products, please choose air or express to ensure the safety of product transportation.
- After delivery, we will send a set of scanned copies of shipping documents to customers by mail, and mail the original documents in time. After the ship leaves the port, we update the shipping schedule to the customer every week and tell the customer when to arrive at the port. If customers encounter customs clearance problems, we will actively cooperate with customers to solve them. If it is an air or express delivery customer, we will provide the customer with the tracking number in time and update the information in time.
- After the customer receives the goods, we will promptly communicate with the customer about the quality and packaging of the product. Hope to get feedback from customers.
- We will provide customers with domestic market conditions and update prices in a timely manner. If conditions permit, we will also provide customers with the demand for the product in the country where they are located to help customers occupy the market.
- If there is any product quality problem, we will solve it in time. Compensation will also be made to the customer according to the third-party test report made by the customer. At present, the compensation rate due to quality objection is less than 1%.
- For our VIP customers, we have a very big preferential policy. If there is a quality problem with the product, we will be exempted from investigation and compensation, no more than three times a year.
- For ordinary customers, we will review the information provided by the customer, and then make compensation.
- Free samples can be provided before customers place an order.
- Customers can contact our technical staff at any time if they have any professional questions they do not understand. Technicians are online 24 hours a day.
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.
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.
IS THERE A DISCOUNT?
Different quantity has different discount.
DO YOU SUPPLY PRODUCT REPORT?
Yes. We’ll give you product analysis report before shipping.
