Product
Supplier
Encyclopedia
Inquiry
Home > Agrochemicals > Fertilizers > Urea for Sale > Nitrogen Potassium Fertiliser TOP DRESSING or WATER SOLUBLE NPK UK
Nitrogen Potassium Fertiliser TOP DRESSING or WATER SOLUBLE NPK UK buy - large image1
Nitrogen Potassium Fertiliser TOP DRESSING or WATER SOLUBLE NPK UK buy - image1
Nitrogen Potassium Fertiliser TOP DRESSING or WATER SOLUBLE NPK UK buy - image2
Nitrogen Potassium Fertiliser TOP DRESSING or WATER SOLUBLE NPK UK buy - image3
Nitrogen Potassium Fertiliser TOP DRESSING or WATER SOLUBLE NPK UK buy - image4
Nitrogen Potassium Fertiliser TOP DRESSING or WATER SOLUBLE NPK UK buy - image5
Nitrogen Potassium Fertiliser TOP DRESSING or WATER SOLUBLE NPK UK buy - image6

Nitrogen Potassium Fertiliser TOP DRESSING or WATER SOLUBLE NPK UK

255 Inquiries

Unit Price: Get Latest Price
CAS No.:

57-13-6

Grade:

Agricultural Grade

Content:

99%

Port:

China

Brand:

UREA

Packaging:

25kg 50kg

Price valid (until):

2024-12-31

Company Type:
Distributor
Location:
United Kingdom
Qualification:
Main Products:

Caustic Soda Ash

  • Product Description

  • Seller Information

  • Inquiry History

  • Description

    USE AS A FERTILISER

    In common with other nitrogen fertilisers, there are limits to how much nitrogen can be safely applied as urea in direct contact with the seed at planting in annual crops and in foliar sprays without burning plant tissue.

    In grain and cotton crops, urea is often drilled into the soil during the fallow period prior to planting. This is normal on heavy textured clay soils in the inland cropping areas of northern NSW and Qld. In high rainfall areas and on sandy soils (where nitrogen can be lost through leaching) and where good in-season rainfall is received during the growing season, urea is often top-dressed after planting. This is a common practice in winter grain crops in southern Australia where the rainfall is winter dominant and more reliable than in northern Australia, where the growth of crops is very reliant on conserved moisture accumulated during the fallow period. The probability of follow-up rain to wash fertiliser into the soil and the crop’s root zone in the spring is higher in the southern States than in northern NSW and Queensland.

    Vegetable and other row crops are side dressed with urea during the growing season. In sugarcane, urea is side dressed after planting, and re-applied to each ratoon crop. Pastures and forage crops are top-dressed as required during the growing season.

    Fertigation (dissolving fertiliser in irrigation water) allows regular applications of urea to be made using the “little and often” approach in irrigated crops. This does allow nutrient supply to be more closely matched to plant demand and crop uptake.

    With few exceptions, foliar sprays cannot be used to meet a crop’s entire requirements for macronutrients such as nitrogen without burning the plant foliage. Foliar sprays of urea are used to supplement rather than replace soil applications. They are used during peak demand periods and where a quick response is required, i.e., to help correct a deficiency in horticultural crops.

    UREA IN THE SOIL

    Although urea can be taken up directly by some plants, the nitrogen in urea is more readily available to plants after mineralisation in the soil to ammonium (NH4+) and nitrate (NO3-).

    After application, urea is converted to ammonium by the action of urease, a naturally occurring enzyme present in the soil. This process is known as ammonification and is usually completed within a few days. Soil bacteria then convert the ammonium to nitrate. This process is called nitrification and is usually completed within a few weeks.

    Ammonium nitrogen is strongly adsorbed onto soil particles. Nitrate is not and can be leached by heavy rainfall or excessive irrigation. Losses by leaching are most likely to occur on light textured, sandy soils.

    Nitrate nitrogen may also be lost to the atmosphere through denitrification if the soil becomes water-logged. Soil micro-organisms, deprived of their usual source of oxygen (O2), will reduce nitrate (NO3-) to gaseous forms, e.g., nitrous oxides and molecular nitrogen (N2).

    Gaseous loss to the atmosphere may also occur as a result of the volatilisation of ammonia gas if urea is applied to the soil surface without incorporation. These losses can be suppressed by soil coverings of 3 cm or by irrigating immediately after application.

    In the soil, ammonium (NH4+) ions are attracted and tightly held (adsorbed) on the surface of clay and humus particles. Some ammonium remains in solution, but as most is adsorbed, it is not easily leached from the root zone. Nitrogen losses through leaching and to the atmosphere are not confined to urea. Nitrogen from other nitrogen fertilisers, and that present naturally in the soil (mineralised from soil organic matter), is also subject to loss.

    In choosing appropriate fertiliser management practices, the likely mechanisms of loss should be determined, and steps taken to minimise them

    Urea 46 Prilled Granular/Urea Fertilizer 46-0-0/Urea N46% for SaleShop Nitrogen Potassium Fertiliser TOP DRESSING or WATER SOLUBLE NPK UK-Detailed Image 1Shop 13-0-46 Nitrogen Potassium Fertiliser TOP DRESSING or WATER SOLUBLE NPK UK-Detailed Image 1Shop 13-0-46 Nitrogen Potassium Fertiliser TOP DRESSING or WATER SOLUBLE NPK UK-Detailed Image 2

    Basic Info
    Product Name:

    Urea

    Other Name:

    Urea;Carbamide;UR;Isourea;Carbamimidic acid;Carbonyl diamide;Urevert;Ureaphil;Ureophil;Pseudourea;B-I-K;Varioform II;Benural 70;Urepearl;Urea perhydrate;Urepeal;Keratinamin Kowa;Pastaron;Pastaron 20;Pastaron 20 soft;Urepeal L;Pastaron 10;Eucerin 10% Urea Lotion;Optigen 1200;Aquacare;Basodexan;Keratinamin;Aquadrate;Hyanit;Elaqua XX;Onychomal;Nutraplus;NSC 34375;Pastaron soft;Rubinol ST 010;Carmol 40;SGN 250;Uroderm;Ultra Low Biuret Urea;Low Biuret Urea;Duration III;ESN;Optigen II;Uria;Cellton NP;Cellpaste K 4;AUS 32;Onyster;Diesel exhaust fluid;DEF;DEF (diesel exhaust fluid);AdBlue;U 6504;30535-50-3;118548-06-4;860639-56-1;923953-70-2;1202865-46-0;1228376-38-2;1262769-89-0;1637232-71-3;2060607-07-8;2417243-36-6

    CAS No.:

    57-13-6

    Molecular Formula:

    CH4N2O

    InChIKeys:

    InChIKey=XSQUKJJJFZCRTK-UHFFFAOYSA-N

    Molecular Weight:

    60.05530

    Exact Mass:

    60.06

    EC Number:

    200-315-5

    UNII:

    8W8T17847W

    ICSC Number:

    0595

    NSC Number:

    757375|34375

    DSSTox ID:

    DTXSID4021426

    NCI Thesaurus Code:

    C29531

    Color/Form:

    White crystals or powder|Tetragonal prisms

    ATC Code:

    B - Blood and blood forming organs|D - Dermatologicals

    HScode:

    3102100001

    Categories:

    Fertilizers

    Characteristics
    PSA:

    69.11000

    XLogP3:

    -1.4

    Appearance:

    white powder

    Density:

    1.3230 g/cm3 @ Temp: 20 °C

    Melting Point:

    132.70 °C

    Boiling Point:

    317-389 °C

    Flash Point:

    53.7±22.6 °C

    Refractive Index:

    1.528

    Water Solubility:

    1080 g/L (20 ºC)

    Vapor Pressure:

    <0.1 hPa (20 °C)

    Toxicity:

    LD50 orally in Rabbit: 8471 mg/kg LD50 dermal Rat 8200 mg/kg

    Explosive limit:

    Reacts with sodium hypochlorite or calcium hypochlorite to form the explosive nitrogen trichloride.

    Odor:

    MAY GRADUALLY DEVELOP SLIGHT ODOR OF AMMONIA, ESP IN PRESENCE OF MOISTURE

    Taste:

    Cooling, saline taste

    PH:

    7.2 (10% solution)

    PKA:

    0.1(at 21 °C)

    Dissociation Constants:

    pKa = 0.10 at 21 °C (conjugate acid)

    Air and Water Reactions:

    Water soluble.

    Reactive Group:

    Amides and Imides

    Reactivity Profile:

    UREA is a weak base. Reacts with hypochlorites to form nitrogen trichloride which explodes spontaneously in air [J. Am. Chem. Soc. 63:3530-32]. Same is true for phosphorus pentachloride. It reacts with azo and diazo compounds to generate toxic gases. Reacts with strong reducing agents to form flammable gases (hydrogen). The heating of improper stoichiometric amounts of urea and sodium nitrite lead to an explosion. Heated mixtures of oxalic acid and urea yielded rapid evolution of gases, carbon dioxide, carbon monoxide and ammonia (if hot, can be explosive). Titanium tetrachloride and urea slowly formed a complex during 6 weeks at 80° C, decomposed violently at 90 C, [Chem. Abs., 1966, 64, 9219b]. Urea ignites spontaneously on stirring with nitrosyl perchlorate due to the formation of the diazonium perchlorate. Oxalic acid and urea react at high temperatures to form toxic and flammable ammonia and carbon monoxide gases, and inert CO2 gas [Von Bentzinger, R. et al., Praxis Naturwiss. Chem., 1987, 36(8), 41-42].

    Autoignition Temperature:

    Not flammable (USCG, 1999)

    Hazard Identification

    Classification of the substance or mixture

    Not classified.

    GHS label elements, including precautionary statements

    Pictogram(s) No symbol.
    Signal word

    No signal word

    Hazard statement(s)

    none

    Precautionary statement(s)
    Prevention

    none

    Response

    none

    Storage

    none

    Disposal

    none

    Other hazards which do not result in classification

    no data available

    Handling and Storage

    Precautions for safe handling

    Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.

    Conditions for safe storage, including any incompatibilities

    Separated from incompatible materials. See Chemical Dangers.

  • Seller Information
    Business Type:

    Distributor

    Main Products:

    Caustic Soda Ash

    Location:

    261 Green Lanes, Palmers Green, London, N13 4XE

    Payment Terms:

    TT against copy of documents,TT against B/L draft before shipment,100% TT in advance

    Average lead Time:

    5

    Total Annual Revenue:

    $5 million-$10 million

    Total Employees:

    51-100

    Year of Establishment:

    2001

  • Inquiry History
    255 Inquiries
    Country Product Purchase Quantity Date Posted
    Israel

    Feed grade urea content 99% 57-13-6

    500 MT Nov 8, 2023
    Uganda

    Urea 46% White Powder Cas: 57-13-6

    6000 MT Sep 10, 2023
    Germany

    Carbamide

    450 TON Jun 14, 2024
    Netherlands

    Urea

    1 MT May 28, 2026
    India

    Urea Grade: IP / USP

    3000.00 KG Sep 6, 2023
    Brazil

    Feed Grade Urea

    28 MT Jan 12, 2024
    Hongkong, China

    Prilled urea

    20000 MT Apr 14, 2025
    Hongkong, China

    urea

    20000 MT Apr 14, 2025
    United Kingdom

    urea

    1 20' Fcl Feb 28, 2024
    United States

    Fertilizer

    20 MT Aug 22, 2025
    United Kingdom

    UREA granular fertilizer. Product name: CH4N2O

    3 40' Fcl Mar 26, 2026
    United Kingdom

    UREA granular fertilizer. Product name: CH4N2O

    3 40' Fcl Mar 24, 2026
    India

    Urea 46% Agricultural Grade White Granular 46%

    250 MT Jul 31, 2023
    Brazil

    Feed grade urea

    1 40' Fcl Feb 28, 2024
    Thailand

    Urea

    1 MT May 25, 2026
    Latvia

    Urea 46

    25000 MT May 22, 2026
    Bangladesh

    urea

    100 KG May 20, 2026
    Chile

    Urea Pharma

    10 MT May 19, 2026
    India

    Technical Grade UREA

    100.00 MT May 13, 2026
    India

    Urea

    1.00 KG May 8, 2026
    Post an enquiry for this product
pic ×

Scan the QR Code to Share

All products displayed on this website are only for non-medical purposes such as industrial applications or scientific research, and cannot be used for clinical diagnosis or treatment of humans or animals. They are not medicinal or edible.

According to relevant laws and regulations and the regulations of this website, units or individuals who purchase hazardous materials should obtain valid qualifications and qualification conditions.

The information shown above is provided by the enterprise itself, and the authenticity, accuracy and legitimacy of the content are the responsibility of the publishing company. ECHEMI does not bear any guarantee responsibility for this. Please be aware that risks in internet transactions objectively exist.

Feedback & Suggestions
Send Message

Thank you for your feedback. If you require further assistance, please contact us by email at info@echemi.com or call us at +86-532-55729510.