4-CPA
Formulation: 98%TC
Chemical Name: Sodium 4-chlorophenoxyacetate;
acetic acid, (p-chlorophenoxy)-, sodium salt
Chemical Formula: C8H7ClO3
Molecular Weight: 208.6
Physical and Chemical Properties
White crystal. No special smell, melting point 157-158(acid), vapor pressure 0.247 pa at 25℃. Stable in room temperature.
Specifications
| Test Items | Specification | Test Results |
| Appearance | White powder | White powder |
| Assay | ≥98.0% | 98.7% |
| Loss on drying | ≤1.0% | 0.22% |
| Melting point | 226~235°C | 232.2~235°C |
| Residue on ignition | ≤0.1% | <0.05% |
| Conclusion | Up to grade | |
Mode of action
4-CPA can be absorbed by plant root, stem, leaf, flower, fruit. The biological activity duration is long.
Its main functions are as follow:
To form seedless fruits.
To promote fruit set and fruit enlargement;
Solubility: Sparingly soluble in water. Readily soluble in most organic solvents. 4-CPA sodium salt is soluble in water.
Stability: It is stable at elevated temperatures (54 deg C) and on exposure to metals, but degrades (30% loss in 24 hours) on exposure to sunlight.
Applications
As plant growth regulator, it can be absorbed by plant via root, stem, leaf, bloom
and fruit.
1. 4-Chlorophenoxyacetic acid ( 4-CPA ) is used to prevent abscission of bloom and fruit, inhibit rooting of beans,Single use: 10-30 mg/L, spray flower or deal with fruit, promote fruit setting.
promote fruit set, induce formation of seedless fruit, through flower spraying.
2.4-Chlorophenoxyacetic acid ( 4-CPA ) can be used for ripening and fruit thinning.
3. 4-Chlorophenoxyacetic acid ( 4-CPA ) also has herbicidal effect at high dosageApplication
4. 4-Chlorophenoxyacetic acid ( 4-CPA )performs better when used in combination with 0.1% monopotassium phosphate.
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