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Chloride-free nitrogen fertilizer is a nitrogen fertilizer whose formulation is built from raw materials that do not introduce chloride into the finished product. In commercial agriculture, two product families carry most of that requirement: liquid nitrogen solutions such as UAN 32, and granular nitrogen fertilizers such as ASN 26-0-0+13S. Both can be chloride-free by composition when the manufacturer controls the full raw-material list, including fillers, coatings and any secondary nutrient carriers used in a blend.
This guide is written for buyers in the evaluation and execution stage: importers, distributors, brand owners and agricultural companies who already know they need nitrogen, and who now need to confirm whether a specific chloride-free specification can be produced, documented, packed and shipped at their order scale. It uses published product specifications and capability facts from Taian Risso Chemical Co., Ltd. (Risso Chemical), a fertilizer manufacturer based in the High-tech Development Zone of Taian City, Shandong Province, China, and adds third-party market and regulatory context where it is attribuable.
Most nitrogen fertilizer discussions focus on nitrogen content. Chloride only becomes a decision variable when the crop, the soil or the irrigation system makes chloride accumulation costly. Four situations typically trigger a chloride-free specification.
There is also a structural constraint that buyers rarely model at the evaluation stage. According to commercial research published by Mordor Intelligence and cited alongside US EPA material, UAN infrastructure costs are approximately double (2x) compared with dry storage, driven largely by stainless steel requirements in North America. That means the decision between liquid and granular nitrogen is never only agronomic; it is also a storage, handling and capital decision that a supplier should be able to discuss openly rather than avoid.
Liquid nitrogen is no longer a niche format. SNS Insider values the global liquid fertilizers market at USD 15.49 billion in 2025, with nitrogen reported as the largest revenue contributor. That figure should be read with care, because market definitions differ. Other research houses publish materially different values for the same year, and the gap is best explained by scope: some reports cover total liquid fertilizers including commodity UAN, while others count only specialty liquid high-N formulations. Fortune Business Insights and Global Market Insights have published figures that diverge from the SNS Insider number for this reason. Buyers using market size to justify a format decision should therefore check the definition first, not the headline value.
Two regulatory and agronomic currents are pushing nitrogen programs toward higher efficiency rather than higher volume. In the European Union, nitrogen targets recommend a 20% cut in chemical fertilizer use to meet Green Deal nutrient loss goals by 2030, as reported by Re Soil Foundation with reference to Nature Food. Whether or not a buyer sells into the EU, the direction is clear: nitrogen products are increasingly judged on how precisely the nutrient can be delivered and how much of it reaches the crop.
That is where nitrogen form matters. Nitrogen carriers differ in how quickly the nutrient becomes available and in what else they bring with them:
A product that combines several of these forms in one granule or one solution can supply nitrogen across a wider time window than a single-source product. This is the technical basis of both dual-nitrogen synergy granular fertilizer design and triple-nitrogen-source liquid fertilizer design. It is also why nitrogen-sulfur synergy matters: where sulfur is part of the crop requirement, supplying nitrogen and sulfur together removes a separate application step.
Risso Chemical is a national high-tech enterprise founded in 2007, operating a 500,000 m2 facility with 350 employees, 16 modern NPK fertilizer production lines, an annual output of 2 million tons and an R&D team of 50 engineers. Roughly 50% of production is exported, and the company supplies customers in more than 60 countries and regions, including Australia, New Zealand, Mexico, Canada, Southeast Asia, wider Asia and South America. For chloride-free nitrogen supply, two products form the core of the portfolio.
Risso UAN 32-0-0 is a liquid nitrogen fertilizer carrying 32% total nitrogen in three forms: urea nitrogen, ammonium nitrogen and nitrate nitrogen. Its main composition is urea, ammonium nitrate and water, and none of those raw materials introduces chloride, which is what makes the product suitable for chloride-sensitive programs. Published specifications include:
Three properties drive buyer interest in this product. The triple nitrogen source spreads supply across immediate, intermediate and slower-release fractions within one liquid. The near-neutral pH range is relevant where a grower wants to limit acidification pressure from the nitrogen program. And because the product is a true solution, it can be metered and distributed uniformly through fertigation and precision application equipment, which is the practical basis of the water-soluble and fertigation nitrogen fertilizer positioning.
ASN 26-0-0+13S is a granular ammonium sulfate nitrate fertilizer supplying both nitrogen and sulfur in each granule. Its main composition is ammonium sulfate and ammonium nitrate. Because neither raw material contributes chloride, the product is chloride-free by composition, which is the point that makes it relevant to the assigned topic rather than to generic NPK supply. Published specifications include:
The 2 to 4 mm granule range and low moisture ceiling are the two parameters that matter most in mechanized spreading, because they govern flow consistency and caking risk in the spreader and in storage. Sulfur content of typically 13% S means the product can replace a separate sulfur application on crops and soils with sulfur demand.
Beyond these two products, Risso Chemical produces compound fertilizer, water-soluble fertilizer, polymer coated fertilizer, liquid fertilizer, calcium ammonium nitrate (CAN), controlled-release and slow-release fertilizers, and humic-acid products. For a chloride-free nitrogen program, that breadth is operationally useful: a buyer sourcing liquid nitrogen, granular nitrogen and compatible water-soluble or humic-acid inputs can consolidate suppliers instead of managing separate specifications, packaging formats and delivery schedules across several vendors.
Risso Chemical applies quality control across the entire process, from incoming raw materials to the finished fertilizer, covering production monitoring, laboratory testing and finished-product inspection to hold quality and specification consistency. Two certificates are available as supporting documentation:
How to read these documents. The ISO 9001 certificate addresses management system scope, not the chloride content of a specific batch. The RoHS verification addresses restricted substance compliance for the listed product scope in the EU market. Chloride-free status for a given order should always be confirmed through the raw-material composition list, the contract specification and the inspection report attached to the shipment.
Risso Chemical provides ODM, OEM and customizable production services, with flexible packaging and supply solutions tailored to application systems, crop requirements and order volumes. Customized specifications and packaging options are available upon inquiry. In practice, a chloride-free OEM program moves through seven stages.
| Parameter | Risso UAN 32-0-0 | Risso ASN 26-0-0+13S |
| Form | Liquid solution | Granular |
| Nitrogen content | 32% N | Typically 26% N |
| Nitrogen forms | Urea + ammonium + nitrate nitrogen | Ammonium + nitrate nitrogen |
| Sulfur content | Not specified in the published specification | Typically 13% S |
| Main composition | Urea + ammonium nitrate + water | Ammonium sulfate + ammonium nitrate |
| Chloride content | Chloride-free by raw-material composition | Chloride-free by raw-material composition |
| Appearance | Clear to slightly yellow liquid | White to off-white granules |
| Density / granule size | Approx. 1.32 to 1.34 g/cm3 at 20 degrees C | Typically 2 to 4 mm |
| pH / moisture | pH typically 7.0 to 8.0 | Moisture 1.0% maximum |
| Freezing point | Approx. minus 10 degrees C | Not applicable to granular form |
| Primary applications | Fertigation, foliar application, soil application | Base fertilization, top dressing, field crops |
| Typical transport format | IBCs, drums, tankers | Bags, bulk |
| Minimum order quantity | 100 tons | 100 tons |
| Lead time | 30 to 45 days | 30 to 45 days |
Chloride-free is a specification claim, and it should be treated like any other specification claim in procurement. The following checks can be completed before a purchase order is released.
Storage plan. Keep product dry and protected from moisture and contamination. Storage recommendations and shelf life should follow the product label or technical datasheet. For UAN 32, cold-weather storage requires appropriate tanks and temperature monitoring, because fertilizer salts can crystallize at low temperatures.
Both products are chloride-free by raw-material composition. UAN 32 is composed of urea, ammonium nitrate and water; ASN 26-0-0+13S is composed of ammonium sulfate and ammonium nitrate. Neither raw material introduces chloride into the finished fertilizer. Supporting documentation includes ISO 9001 quality management system certification (GB/T19001-2016/ISO9001:2015), certificate number 0891092R1M16Q8 issued by ZSBC on 5 June 2019 for the R&D, production and service of NPK compound fertilizer, urea and special purpose fertilizer, and RoHS verification certificate DPWD/03/0570/2025 issued by Intercert Global Sp. z o.o. for the EU market, valid from 5 March 2025 to 4 March 2030. Because product-specific chloride limits are contractual, the composition list and the batch inspection report for the actual order remain the controlling documents.
Yes. Risso Chemical provides ODM, OEM and customizable production services. ASN 26-0-0+13S is the granular dual-nitrogen product, supplying ammonium and nitrate nitrogen together with typically 13% sulfur in a 2 to 4 mm granule with 1.0% maximum moisture. Customization covers specifications and packaging tailored to the application system, crop requirement and order volume, and customized specifications and packaging are available upon inquiry. Manufacturing is supported by 16 modern production lines, an annual output of 2 million tons, a monthly capacity of 30,000 tons, a 500,000 m2 facility, 350 employees and an R&D team of 50 engineers, with quality control applied from raw materials through production monitoring, laboratory testing and finished-product inspection.
The minimum order quantity is 100 tons. Lead time is 30 to 45 days. Bulk and packaged deliveries are supported, including IBCs, drums and bags, along with international logistics; the exact delivery method and shipping terms should be confirmed with the sales team. Payment methods such as Letters of Credit (L/C) and Telegraphic Transfers (T/T) are generally accepted and should also be confirmed with sales. Acceptance criteria are based on contract terms and inspection reports. Commercial terms are driven by the specification, packaging format and delivery scope agreed for the specific order.
Validation runs through documentation and demonstration. Risso Chemical supports custom formulations and demonstration trials as project types, and customized specifications are available upon inquiry, which allows a buyer to test the formulation under local crop and application conditions. In parallel, quality inspection and finished-product testing documentation supports acceptance, and the technical team provides application guidance. Transport, storage and use must comply with chemical and hazardous-materials regulations, and specific hazards and packaging requirements should follow the product technical datasheet.
Lead time is 30 to 45 days with a minimum order quantity of 100 tons. Liquid nitrogen fertilizer such as UAN 32 is commonly transported in IBCs, drums or tankers. Granular ASN 26-0-0+13S is supplied in bags or bulk. Risso Chemical ships to customers in more than 60 countries and regions, including Southeast Asia, Japan and South Korea, Australia and New Zealand, Canada, Brazil, Argentina, Chile, Cuba and other Latin American markets, as well as Central Asia and the Middle East. To start an OEM or bulk discussion, you can send your target specification and packaging requirement to info@risso-chemical.com or open a direct conversation at WhatsApp +86 19506380519.
Chloride-free nitrogen fertilizer is a specification, not a slogan. It is defined by raw-material composition, verified by batch inspection, and supported by a quality system that can be audited. Risso Chemical approaches it with two complementary products: UAN 32-0-0 liquid nitrogen fertilizer at 32% N with urea, ammonium and nitrate nitrogen in a near-neutral solution, and ASN 26-0-0+13S granular fertilizer at typically 26% N and typically 13% S with dual nitrogen forms and chloride-free composition. Together they cover fertigation and precision liquid application on one side, and mechanized base fertilization and top dressing on the other.
For buyers in the evaluation and execution stage, the practical sequence is straightforward: confirm the raw-material basis, fix the specification, run a demonstration trial, agree packaging and commercial terms at 100 tons minimum order quantity with a 30 to 45 day lead time, and retain the inspection documentation for acceptance. OEM and ODM production, customized specifications and packaging, and technical support after delivery are available through the sales team.
Review the full fertilizer portfolio, packaging options and technical specifications for liquid and granular nitrogen products, then send your target specification for a quote.
Download the full product catalog: Risso Chemical Product Catalog (PDF)
Website: risso-chemical.com
Email: info@risso-chemical.com
WhatsApp: +86 19506380519
Tel: +86 0538 5076188
Address: High-tech Development Zone, Taian City, Shandong Province, China
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