| Customization: | Available |
|---|---|
| CAS No.: | 57-13-6 |
| Formula: | CH4n2o |
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surface1Requirements for urea for agricultural use (fertilizer)
| project | grade | ||
| Superior products | Qualified products | ||
| Mass fraction of total nitrogen (N)≥ | 46.0 | 45.0 | |
| Mass fraction of biuret≤ | 0.9 | 1.5 | |
| Moisture≤ | 0.5 | 1.0 | |
| Mass fraction of methylene diurea (calculated as HCHO)≤ | 0.6 | 0.6 | |
| granularity | d 0.85 mm~2.80 mm≥ d 1.18 mm~3.35 mm≥ d 2.00 mm~4.75 mm≥ d 4.00 mm~8.00 mm≥ |
93 | 90 |
| project | grade | |
| Superior products | Qualified products | |
| Mass fraction of total nitrogen (N)≥ | 46.4 | 46.0 |
| Mass fraction of biuret≤ | 0.5 | 1.0 |
| Moisture≤ | 0.3 | 0.7 |
| Mass fraction of iron (expressed as Fe)≤ | 0.0005 | 0.0010 |
| Alkalinity (NH 3Mass fraction)≤ | 0.01 | 0.03 |
| Sulfate (SO4²-weight fraction ≤ | 0.005 | 0.020 |
| Mass fraction of water insoluble matter≤ | 0.005 | 0.040 |
| 1. Industrial urea has no requirements on particle size. The particle size range can be clearly indicated in the packaging label according to the agreement between the supply and demand parties, referring to the "particle size" item index in the agricultural urea table. 2. If formaldehyde and other additives are added in the production process of industrial urea, it should be indicated in the quality certificate. | ||
Urea, also known as carbamide, is an organic compound composed of carbon, nitrogen, oxygen, and hydrogen. One of the simplest organic compounds, it is the main nitrogenous end product of protein metabolic breakdown in mammals and certain fish. It is also the highest nitrogen fertilizer at present.
As a neutral fertilizer, urea is suitable for a variety of soils and plants. It is easy to preserve, easy to use, and has little damage to soil. It is a kind of chemical nitrogen fertilizer used in large quantities at present. In industry, ammonia and carbon dioxide are used to synthesize urea under certain conditions.
Medical application: Dermatology uses certain agents containing urea to increase the moisture of the skin. The closed dressing used for non-surgically removed nails contains 40% urea. The carbon-14-breath test, which tests for the presence of Helicobacter pylori, uses urea that contains a carbon 14 or carbon 13 label.
Agricultural application: Urea is a high-concentration nitrogen fertilizer, a neutral quick-acting fertilizer, and can also be used to produce a variety of compound fertilizers. No harmful substances remain in the soil, and long-term application has no adverse effects. Animal husbandry can be used as feed for ruminants.
Commercial applications: raw materials for special plastics, especially urea formaldehyde resins; Raw materials for certain types of gum; Composition of fertilizers and feed; Instead of anti-freezing salt sprinkled on the streets, the advantage is that it does not cause metal corrosion to strengthen the smell of cigarettes; Brown industrially produced pretzels; Ingredients in certain shampoos and cleansers; Components of first-aid refrigeration packages; The composition of the rain enhancer (with salt); Used to separate paraffin; Used as refractory material; Environmentally friendly engine fuel composition; Ingredients of teeth whitening products; For chemical fertilizer; An important aid for dyeing and printing
Laboratory application: Urea is very effective in denaturing proteins. Urea can be used to make urea nitrate.
Feed additives: Urea and urea compounds become feed additives for ruminants.
Application in cosmetics: Used to add moisturizing ingredients in facial mask, skin care lotion, cream, hand cream and other products. The addition ratio is 3-5%.
Industrial application: It has a brightening effect on the chemical polishing of steel and stainless steel, and is used as a corrosion inhibitor in metal pickling, and is also used in the preparation of palladium activation liquid.
1. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
2.what can you buy from us?
catalyst,Functional additive,Inorganic raw material,additive,Pigment dye
3.What's your delivery time?
It depends on order quantity, usually we will arrange shipment within 3-20 days
4.Can l get sample before order?
Yes, we can provide free sample once price is agreed,and you have to pay us the delivery fee in advance
5. why should you buy from us not from other suppliers?
We with a sound management system. Long-term commitment to chemical products research and development, production and marketing. Our products include organic chemical raw mate
6. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,FAS,CIP,FCA,CPT,DEQ,DDP,DDU,Express Delivery,DAF,DES;
Accepted Payment Currency:USD,EUR,CNY;
Accepted Payment Type: T/T,L/C,Credit Card,PayPal,Western Union,Cash,Escrow;
Language Spoken:English,Chinese
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