OD additives
Oil Dispersion (OD)
For an OD formulation, the pesticide is suspended in a water-insoluble organic solvent. Together with emulsifying agents, the solution will form a dispersion when mixed with water.
For a long-term stable formulation, the active must be oil in-soluble and thermodynamically stable to avoid recrystallization. The employed adjuvants can also enhance the biological efficacy.
Key-factors:
- Pesticide must be insoluble in water immiscible solvent
- Actives with high melting point
- Crystal formation and sedimentation have to be suppressed
General recipe
| OD ingredients | wt% |
|---|---|
| Active ingredient | 4-20 |
| Non-aqueous dispersing agents | 5-10 |
| Emulsifier | 5-10 |
| Organophilic anti-settling agent | 2-3 |
| Mineral or vegetable oil | To 100 |
Products
Emulsifiers
| Trade name | Chemistry | Property | EPA |
|---|---|---|---|
| LUCRAMUL® L 03 | Alkyl ethoxylate | Nonionic emulsifier | |
| LUCRAMUL® L 05 | Alkyl ethoxylate | Nonionic emulsifier | |
| LUCRAMUL® 1819 DB | Oleyl ethoxylate | Nonionic emulsifier | |
| LUCRAMUL® CO 08 | Castor oil ethoxylate | Nonionic emulsifier | |
| LUCRAMUL® CO 30 | Castor oil ethoxylate | Nonionic emulsifier | |
| LUCRAMUL® SO 21 | Soy oil ethoxylate | Nonionic emulsifier | |
| LUCRAMUL® SMO 20 | Sorbitan monooleate ethoxylate | Nonionic emulsifier | |
| LUCRAMUL® SML 20 | Sorbitan monolaurate ethoxylate | Nonionic emulsifier | |
| LUCRAMUL® STO 20 | Sorbitan trioleate ethoxylate | Nonionic emulsifier | |
| LUCRAMUL® ADD 01 | Modified vegetable oil ethoxylate | Nonionic emulsifier | |
| LUCRAMUL® OSE 04 | Emulsifier blend | Matched pair | |
| LUCRAMUL® DBA B | Calcium dodecyl benzene sulfonate in n-butanol | Anionic emulsifier |
EPA can be submitted on request
Adjuvant
| Trade name | Chemistry | Property | EPA |
|---|---|---|---|
| LUCRAMUL® AG 101 | Alkyl alkoxylate | Ultra-fast spreading, penetrating | |
| LUCRAMUL® AG 103 | Alkyl alkoxylate | Spreading, penetrating |