company tower banner
Stepan Company Company Logo
STEPGROW® AMS is a formulated blend of surfactants and ammonium sulfate. This product does not contain apgs (alkypolyglucosides), is low-foaming, and improves the activity of weak acid herbicides through enhanced uptake and water conditioning of the spray tank in agricultural formulations.

Functions: Surfactant, Surfactant (Anionic)

Technical Data Sheet

Knowde Enhanced TDS

Identification & Functionality

Agrochemical Functions
Technologies

Features & Benefits

Agrochemicals Features
Product Features & Benefits
  • The low-foaming product is economical and effective with a broad range of glufosinate- and glyphosate-based herbicides to promote aggressive weed control.
  • The product contains a proprietary blend of ammonium sulfate (AMS), surfactant and desiccant to provide improved performance (compared to a leading commercial product) when applied to weeds, all while conditioning water to prevent hard water antagonism.
  • Low-foaming formula
  • Economical alternative for use in herbicide applications
  • Conditions water to stop hard water inhibition
  • Dissolved AMS eliminates potential for clogged nozzles and sedimentation

Applications & Uses

Application Technique
Applications

STEPGROW AMS is a high-load ammonium sulfate adjuvant for use with Glyphosate and Glufosinate herbicide formulations, as well as additional pesticides that are affected by hard water antagonism. The product is a convenient-to-use liquid tank additive that is designed to enhance efficacy of the herbicide and maximize weed control.

Properties

Physical Form
Appearance
Clear liquid (at 25°C)
Soluble in
Water
Typical Properties
ValueUnitsTest Method / Conditions
Cloud Point (in 1% aqueous solution)-12°C
Density (at 25°C)1.2g/ml
Flash Pointmin. 94°CPMCC Flash Point Tester
Moisture Content60%
pH7.1
Pour Point-40°C
Regulated Volatile Organic Chemicals0%U.S. EPA
Viscosity (at 25°C)10cPs

Regulatory & Compliance

Certifications & Compliance
Clearances
  • The international inventories country clearances of STEPGROW AMS, can be found in Section 15 of the Safety Data Sheet (SDS). It is the responsibility of the formulator to review the chemical control regulations for each country where the end product is intended to be sold or used.
  • STEPGROW AMS is exempted from the requirement of tolerance under U.S. EPA 40 CFR 180.910. This CFR section should be consulted for the complete context before any conclusion is made as to the compliant regulated use.

Technical Details & Test Data

AMS and Surfactant Levels in STEPGROW® AMS
Gallons of STEPGROW AMS per 100 Gallons Water: Pounds of Surfactant Pounds of Dry Ammonium Sulfate
2.5 1.25 8.5
5.0 2.50 17.0
STEPGROW AMS Performance

The graph illustrates STEPGROW AMS’s equivalent to or better performance against a leading commercial product across applications.

Velvetleaf - 20 oz./acre

STEPGROW® AMS - Stepgrow Ams Performance

STEPGROW® AMS - Stepgrow Ams Performance - 1

STEPGROW® AMS - Stepgrow Ams Performance - 2

Packaging & Availability

Standard Packaging

STEPGROW AMS is available in drums, totes and bulk quantities.

Storage & Handling

Storage & Handling
  • Normal safety precautions (e.g. gloves and safety goggles) should be employed when handling STEPGROW AMS. Contact with eyes and prolonged contact with skin should be avoided. Wash hands thoroughly after handling materials. See the SDS for further information.
  • Bulk Storage Information: It is recommended that STEPGROW AMS be stored in stainless steel and glass fiber-reinforced polyester tanks. Many oven-cured phenolic and epoxy/phenolic linings may also be used. Storage temperatures above 90°F (32°C) are desirable to maintain ease of pumping. Temperatures up to 130°F (54°C) can be maintained for long periods of time without degradation of the product.