Urea
Chelora Chemicals supplies Urea (CO(NH2)2, CAS 57-13-6) in prilled and granular fertiliser grades as well as technical grade for resin and industrial applications, the world's most widely used solid nitrogen fertiliser and a key feedstock for urea-formaldehyde and melamine resin systems. Export shipments move from Indonesia in moisture-protected bulk and bagged formats suited to agricultural and industrial buyers alike.
What Urea is, and why buyers source it
Urea combines the highest nitrogen content of any solid fertiliser with straightforward handling and storage, making it the dominant nitrogen source in global agriculture, while technical-grade material serves as the essential feedstock for urea-formaldehyde and melamine resin manufacturing.
Prilled and granular Urea at 46% nitrogen content is the standard solid nitrogen fertiliser worldwide, valued for its high nutrient density per unit weight shipped, which reduces transport and application costs relative to lower-concentration nitrogen sources.
Lower-biuret technical-grade Urea is reacted with Formaldehyde to produce urea-formaldehyde resins used in wood adhesives (particleboard, MDF, plywood) and moulding compounds, where biuret content and purity directly affect resin performance.
How Urea is made
An overview of the production route for orientation purposes. Our manufacturing partners' own process parameters and in-process controls are proprietary and are not disclosed beyond what is needed to interpret the certificate of analysis.
Urea is manufactured by reacting Ammonia with carbon dioxide (CO2) under high pressure and temperature to form ammonium carbamate, which is then dehydrated to Urea.
Reactor pressure, temperature and residence time are controlled to maximise conversion and minimise biuret formation (an over-dehydration by-product), followed by prilling or granulation to the target particle size and hardness.
Industries and processes that use it
Urea's applications span agricultural fertilisation and industrial resin and chemical manufacturing.
Nitrogen Fertiliser
The dominant solid nitrogen fertiliser worldwide, applied directly to soil or used in fertigation and blended NPK formulations.
Urea-Formaldehyde Resins
Reacted with Formaldehyde to produce resins used in wood-based panel adhesives (particleboard, MDF, plywood) and moulding compounds.
Melamine Production
Feedstock for melamine manufacture, itself used in melamine-formaldehyde resins and laminates.
Diesel Exhaust Fluid (DEF/AdBlue)
High-purity Urea is used to produce diesel exhaust fluid for selective catalytic reduction emission-control systems.
How the molecule is typically carried forward
Urea's reactivity centres on its two amide groups, which participate in condensation reactions with aldehydes (notably Formaldehyde) and undergo hydrolysis to release ammonia in soil and aqueous systems.
Soil Hydrolysis
Urea dissolves and, in soil, undergoes hydrolysis (catalysed by the enzyme urease) to release ammonium and bicarbonate ions.
Methylol-Urea Formation
In resin manufacturing, Urea condenses with Formaldehyde to form methylol-urea intermediates.
Polymer Network Formation
Further condensation builds the urea-formaldehyde polymer network used in adhesive and moulding applications.
Urea against other amines we supply
Urea is the primary downstream product in Chelora's nitrogen chemicals range, supplied alongside its precursor and resin co-reactant.
| Product | CAS Number | Category | Notes |
|---|---|---|---|
| Urea | 57-13-6 | Solid nitrogen fertiliser | The product on this page — the world's most widely used solid nitrogen fertiliser. |
| Ammonia | 7664-41-7 | Primary nitrogen feedstock | The direct precursor to Urea synthesis — see its product page. |
| Formaldehyde | 50-00-0 | Basic organic intermediate | The key co-reactant in urea-formaldehyde resin systems — see its product page. |
| Caustic Soda (Sodium Hydroxide) | 1310-73-2 | Strong industrial alkali | An industrial alkali used across fertiliser-adjacent processing — see its product page. |
Exact physical constants and purity specifications are confirmed per batch on the certificate of analysis — treat the notes above as a sourcing guide, not a specification sheet, for products other than Urea.
Safety classification at a glance
Based on GHS classification as commonly listed for this substance. This is a summary for orientation only — always work from the current safety data sheet supplied with your specific batch.
No significant hazard under standard GHS criteria.
Avoid prolonged inhalation of fine dust.
Essentially non-toxic at typical exposure levels.
Does not support combustion.
Dust mask recommended during bulk handling.
Safety glasses recommended.
Standard gloves sufficient.
Dry, well-ventilated area, sealed packaging.
Urea is a low-hazard material handled under standard industrial dust-control and housekeeping practices. Normal PPE (dust mask, safety glasses) is recommended during bulk loading and handling, with particular attention to moisture control given Urea's hygroscopic nature and tendency to cake if exposed to humidity.
Keeping it on spec between delivery and use
General storage guidance for this grade. Site-specific storage rules, segregation requirements and re-test intervals should follow your own EHS procedures and the MSDS issued with your batch.
Store in sealed, moisture-resistant packaging in a dry, well-ventilated area. Urea is hygroscopic and will cake or degrade in prill/granule quality if exposed to humidity or temperature fluctuation during storage.
How it ships from Indonesia
Standard packing and export terms for this product. Confirm exact figures against your order — they vary slightly by destination and quantity.
What travels with every batch
Specification is agreed before the purchase order, not discovered on arrival. Every shipment of Urea leaves with a documented, checkable paper trail.
Certificate of Analysis
Batch-wise assay (by titration/GC), colour and relevant physical constants, issued against the agreed specification so your QC team can check it, not just file it.
Safety Data Sheet
GHS-format SDS in English covering hazard classification, handling, storage, first-aid and spill response for the exact grade of Urea shipped.
Technical Data Sheet
Reference physical and chemical properties, recommended storage and typical applications, for internal circulation to your process or R&D teams.
Certificate of Origin
Confirms Indonesian origin for customs clearance and any preferential-duty claim at your destination port.
Dangerous Goods Declaration
UN packing group, classification and shipper's declaration prepared ahead of loading so documentation never holds up customs.
Third-Party Inspection
Independent pre-shipment inspection and re-sampling can be arranged on request, at your cost, for buyers who require it as a matter of policy.
Frequently asked questions
What buyers most often ask our sales desk about this grade.
01What is Urea used for?+
02What grades does Chelora Chemicals supply?+
03What is the difference between prilled and granular Urea?+
04Is Urea hazardous?+
05How is Urea packed for export?+
06What is biuret and why does it matter?+
07What is the typical lead time for export orders?+
08Does Chelora Chemicals provide a Certificate of Analysis?+
09Can Urea cake during storage?+
10Is technical-grade Urea different from fertiliser-grade Urea?+
Need Urea on spec, on time?
Send us your required purity, quantity, packing preference and destination port. Our desk quotes most enquiries within one working day.