What This Grade Is For
Chemical Auxiliary Agent Hydroxyethyl Cellulose HEC is supplied by Yiyuantong Chemical as a film former, suspension aid and binder for seed treatment, fertilizer and pesticide formulations. The application of hydroxyethyl cellulose in the field of environmental protection is also worthy of attention. Due to its good water retention and colloidal properties, hydroxyethyl cellulose has the potential to be used in the development of new wastewater treatment and soil remediation materials.
Key Benefits
- Forms a continuous film that holds treatment chemistry on the seed through handling and drilling
- Keeps suspension concentrates homogeneous, so the dose in the tank matches the dose on the label
- Improves cling and rain-fastness of foliar sprays by raising the viscosity of the droplet
- Binds fines in granular fertilizer, cutting dust during bagging and blending
- Held in stock: 800 tonnes of HEC are carried year round, and confirmed orders ship to the named port within 3 working days
Problems It Solves
- Seed coatings that flake off in the drill and leave the active behind in the hopper
- Suspension concentrates that settle hard in the drum over a season of storage
- Spray mixtures that run off the leaf before the active has a chance to work
- Dust generation during fertilizer handling and blending
Application Scenarios
- Seed coating and seed treatment slurries
- Suspension concentrate and flowable pesticides
- Water-soluble and granular fertilizer binding
- Foliar spray adjuvant systems
Who It Is For
- Seed treatment formulators
- Agrochemical manufacturers
- Fertilizer producers and blenders
Technical Features
- Non-ionic backbone, so viscosity survives salt and hard water
- Cold-water soluble, no cooking step needed in the mixing room
- Supplied from 300 to 200000 mPa.s so the grade can be matched to the process
- Molar degree of substitution of 1.8 to 3.0 for biological stability and high transmittance
- Solvent process raises the degree of substitution by 30 to 35 percent against traditional routes
Technical Data And Packing
| Product Name | Hydroxyethyl Cellulose |
|---|---|
| CAS No | 9004-62-0 |
| EINECS | 618-387-5 |
| Chemical Formula | (C2H6O2)n |
| Appearance | White or almost white, odorless, tasteless solid powder |
| Viscosity | 300-200000 mPa.s |
| Transmittance | at least 80.0 % |
| Molar Degree of Substitution | 1.8-3.0 |
| Water Content | 5.0 % max |
| Ash Content (as sulfate) | 6.0 % max |
| pH (1% solution) | 6.0-8.5 |
| Screening Rate (40 mesh) | at least 99 % |
| Packing | 25 kg per bag, inner polyethylene film, outer composite woven bag |
Packing is 25 kg per bag as standard: an inner polyethylene plastic film bag inside an outer composite plastic woven bag. Other pack sizes are arranged on request.
Raw Materials
- High alpha-cellulose refined cotton
- Wood pulp with high cellulose content
- Ethylene oxide
Manufacturing Process
- Alkalisation of refined cotton and wood pulp
- Etherification with ethylene oxide
- Acetone countercurrent washing
- Drying and milling
- 40 mesh screening
- Lot testing and packing
Quality Control
- Every lot is tested in our own laboratory against the customer specification before release
- Third-party verification is available through SGS, which we have worked with on export lots
- Certificate of analysis issued with each shipment; HPLC or NMR data supplied on request
- Acetone countercurrent washing removes process residues before drying and milling
How It Compares
| Polyvinyl alcohol binders | Cellulose ether dissolves in cold water and needs no heating step in the mixing room |
|---|---|
| Xanthan gum | Cellulose ether is not subject to fermentation, which matters in warm storage |
Use Guide
- Prepare a stock solution in cold water and let it hydrate fully before blending with the active
- Test compatibility with the active and any surfactant in the pack before scaling up
- For seed treatment, confirm flow and dust-off on the actual seed lot
Customisation Options
- Viscosity grade selected against your process, from 300 to 200000 mPa.s
- Private label bags printed with your own label content
- Packing sizes arranged to suit your blending line
- Sample shipment by FEDEX, DHL or EMS before a production order
Certification And Inspection
- SGS third-party inspection available on export lots
- Certificate of analysis issued with every shipment
- HPLC or NMR data supplied on request
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Industry Pages
Chemical Auxiliary Agent Hydroxyethyl Cellulose HEC FAQ
Can it be used in seed coating and in the tank mix?
Yes. It is used as a film former on the seed and as a suspension aid in the formulated product. The grade differs between the two, so tell us which stage you are formulating for.
Does it affect germination?
The film is water soluble and releases as the seed takes up moisture. Confirm on your own seed lot and coating recipe before a commercial run.
Are you a manufacturer or a trading company?
We are a manufacturer and you are welcome to visit the plant. Our hydroxyethyl cellulose project runs at 5000 tonnes a year on an acetone countercurrent washing process.
What payment terms do you accept?
L/C, T/T, D/A, D/P, PayPal and Western Union. We have worked with China Export and Credit Insurance Corporation for many years.
How fast can you ship?
Stock items are despatched within 5 days of payment. If the grade is not in stock, production and despatch take 7 to 10 days from payment.
Get A Price For Chemical Auxiliary Agent Hydroxyethyl Cellulose HEC
Send the quantity, the viscosity grade and the destination port. We reply with price, lead time and the lot analysis.