Leading Agricultural Emulsifier Manufacturer
High-performance Nonionic Emulsifiers (600# & BY Series) for Pesticide EC & WP Formulations.

Emulsifiers Matched to the Formulation, Not Sold as One Product
Developing a stable pesticide formulation means controlling surfactant HLB and chemical compatibility precisely. Emulsion separation and poor spontaneous emulsification are the two failures that most often compromise an otherwise good active ingredient.
Our range is organised by what it does, not by a single product code: the 600# series (TSP ethoxylates) and BY series for general EC and WP duty, the 400# series for pyrethroid EC, and the 1601# series (phenyl phenol ethoxylates) for glyphosate and paraquat systems.
- Product TypeNonionic agricultural / pesticide emulsifier
- Series600# / BY-110, 120, 130 / 400#, 403# / 1601#, 1602#
- Formulation TypesEC, EW, SC, ME, WP
- SolubilitySoluble in water and organic solvents including methanol, benzene and toluene
- CompatibilityHighly compatible with anionic surfactants for tailored blends
Agricultural Emulsifier Technical Data
| Series | Appearance (25°C) | Cloud Point (°C) | Moisture (%) | HLB |
|---|---|---|---|---|
| 600# Series | Light yellow paste | 60 – 100 | ≤ 0.5 | 12 – 16 |
| BY-110 | Light yellow transparent oily liquid | Saponification: 95 ± 5 | ≤ 0.5 | — |
| BY-120 / 130 | Oily liquid or paste | 75 – 94 | ≤ 0.5 | 10 – 16 |
| 400# / 403# | Light yellow brownish viscous liquid | 66 – 90 | ≤ 0.5 | 12 – 17 |
| 1601# / 1602# | Light yellow paste or liquid | 73 – 79 | ≤ 0.5 | 16 – 16.9 |
Blend ratios are matched to the active ingredient and solvent system. Request a formulation-specific recommendation with your TDS enquiry.
Matched to Your Active Ingredient
600# Series — TSP Ethoxylates
Abamectin: excellent stability in EC and EW. Chlorpyrifos: enhances spontaneous emulsification and long-term storage. Pyrethroids: improved droplet spreading and leaf penetration.
1601# Series — Phenyl Phenol Ethoxylates
Glyphosate: engineered for high-load SL and aqueous solution systems. Paraquat and diquat: superior wetting and enhanced rain-fastness. Selective herbicides: synergistic effect on systemic absorption.
400# Series — Pyrethroid EC
Highly effective for preparing pyrethroid emulsifiable concentrates when blended with anionic surfactants.
BY-110 — Wettable Powders
A trusted component for high-quality WP formulations, ensuring rapid wetting and uniform dispersion of the active.
Selection & Handling Notes
⚠ EC systems need a nonionic + anionic pair
The nonionic emulsifier alone rarely delivers the spontaneous emulsification an EC is graded on. Pair with an anionic such as calcium dodecylbenzene sulfonate and tune the ratio.
⚠ Validate in standard hard water
Emulsion stability is graded in hard water at both low and high dilution. Test at your actual dilution water hardness before scale-up.
⚠ Cold-storage separation is an HLB problem
Nonionics lose hydration as temperature falls, lowering effective HLB. If a formulation fails the 0°C test, shift the blend higher in HLB or add a co-surfactant.
⚠ Residual moisture degrades sensitive actives
We minimise residual moisture and unreacted alcohols precisely because these degrade sensitive active ingredients. Specify the moisture limit you need.

Packaging, Storage & Shipping
Packaging: 200 kg HDPE drums and 1000 kg IBC tanks, designed to maintain chemical stability during long-distance maritime transit.
Storage: Cool, dry and well-ventilated conditions with containers kept closed. Shelf life 2 years from date of manufacture.
Shipping: FOB, CIF and CFR as FCL or LCL via Shanghai Port, with TDS, MSDS and COA supplied for customs clearance and REACH filing.
Frequently Asked Questions
What is an agrochemical emulsifier?
It is a surfactant system built into a pesticide formulation so the product forms a stable emulsion on dilution in water. Different formulation types — EC, EW, SC, ME, WP — need different emulsifier chemistry.
Which series suits a pyrethroid EC formulation?
The 400# series is highly effective for pyrethroid emulsifiable concentrates when blended with anionic surfactants. The 600# series also performs well on pyrethroids where droplet spreading matters.
Which emulsifier works with glyphosate?
The 1601# series (phenyl phenol ethoxylates) is engineered for high-load glyphosate SL and aqueous solution systems, and also suits paraquat and diquat where rain-fastness is required.
What should I use for wettable powders?
BY-110 is a trusted component for high-quality WP formulations, providing rapid wetting and uniform dispersion of the active ingredient.
Can Kemaix customise an emulsifier for my active ingredient?
Yes. HLB and blend ratios are tailored to your active, solvent system and formulation type. Send us the active and solvent and we will propose a blend.
Do you provide compatibility data?
Yes. Our emulsifiers are batch-tested against common actives, and our laboratory can run emulsion stability and hard-water dilution testing on your specific formulation.
Dealing With Emulsion Instability?
Tell us your active ingredient, solvent system and formulation type — our technical team will propose a blend, supply TDS and COA, and send 200–500 g samples for your stability trials.
