Rhamnolipid 60 g/L Liquid

Rhamnolipids are a class of surface-active glycolipid secondary metabolites produced by Pseudomonas microorganisms via fermentation under specific culture conditions. The 60 g/L liquid is supplied as the clear, filtered liquid from the finished fermentation — a reddish-brown, fully water-miscible liquid. It lowers the water-air surface tension from ~72 mN/m to 26 mN/m (critical micelle concentration ≈ 33.3 mg/L) at very low use rates, and the interfacial tension against crude oil to 0.2728 mN/m. In agriculture it is used as a biobased wetting agent, spreading agent, emulsifier and dispersant — and as a soil-wetting agent in dry or compacted soils.

Both reduce surface tension and improve coverage; they are different tools, not interchangeable. Organosilicone surfactants spread faster and can reach lower surface tension at very low rates, but their super-spreading behaviour can increase runoff and penetration — which is a concern when the active ingredient needs to remain on the leaf surface or when working with microbial actives. Rhamnolipid is biobased, readily biodegradable and is generally compatible with biological products (microbial inoculants, biopesticides, biostimulants). In addition, rhamnolipids possess characteristics such as the ability to chelate medium and trace elements; furthermore, the negatively charged micelles they form can improve soil aggregate structure and enhance cation exchange capacity. Confirm surfactant choice against the specific crop, formulation and local registration.

Documented in research: seed-coating and seed-soak programs that promote germination and early root growth; documented antimicrobial activity against selected phytopathogens (e.g. Botrytis, Phytophthora, Fusarium, Rhizoctonia) in vitro and in research settings; and suppression of selected insect pests in published research. These uses are subject to local product registration — confirm against the registration of your target market before any biocidal or insecticidal claim is made on a finished product label.

The 60 g/L liquid is water-miscible and used directly after dilution. For direct use, dilute at 1:1,500–2,000 and apply — as a wetting/spreading agent in the spray tank, in fertigation lines, or for soil-wetting in dry or compacted soils. This is a manufacturer-recommended starting range, not a product label — confirm the final rate against your local registration and your own field results.

Generally yes — at the typical use rates above it does not impair the viability of common microbial inoculants (e.g. Bacillus, Trichoderma) in tank mixes, but every strain and concentration pair should be tested. The pH window of 6–7 makes rhamnolipid compatible with most neutral biostimulant and biocontrol formulations. Avoid strong acid or alkali (>pH 10) tank conditions.

It is ready to dilute and use — the 60 g/L liquid is water-miscible and can go straight into the spray tank or a fertigation line. It is equally suitable as an input for formulators: blend it into tank-mix adjuvants, foliar nutrition lines, biological product formulations or dedicated soil-wetting products. Pesticidal or biocidal label claims on a finished product remain the responsibility of the registrant in your country. Every shipment includes a batch COA.

Rhamnolipid is recognized internationally as a low-toxicity, biodegradable biosurfactant. In the US, rhamnolipid is registered with the EPA as a biochemical pesticide active ingredient (PC Code 110029). We support that process with COA, TDS, MSDS, etc and impurity profile on every lot.

MOQ is 1000L. Typical lead time is about 10 working days to Shanghai port; OEM packaging and batch COA are available. Shelf life is 24 months unopened; use within 6 months after opening.

For agricultural programs, 60 g/L is the concentration range where field performance and cost balance best. At typical agricultural dilution rates, the working spray solution reaches the same measured surface tension (~26 mN/m) whether you start from the 60 g/L liquid or a higher-concentration grade — the difference is carried mainly in price, not in spreading performance in the tank. (The measured performance is identical for both delivery forms: surface tension 26 mN/m, critical micelle concentration ≈ 33.3 mg/L.) Higher-concentration liquid grades are available on request for industrial and specialty applications, where pricing rises steeply with concentration. For wetting, spreading, soil-wetting and tank-mix programs, the 60 g/L liquid is the cost-effective choice; if your application genuinely requires a higher assay, contact us for a quotation.