Propylene Glycol (Agrochemical Grade)
CAS Number: 57-55-6
Propylene glycol (1,2-propanediol) is a versatile humectant and co-solvent used in agricultural formulations including SC suspensions, SL solutions, and WG wettable granules. It lowers the freezing point of water-based formulations to prevent crystallization during cold storage and distribution, while also acting as a plasticizer in film-forming sticker formulations. Its low toxicity and biodegradability make it a preferred carrier in both conventional and reduced-risk pesticide products.
Technical Specifications
| appearance | Clear, colorless, viscous liquid |
| purity (%) | ≥99.5 |
| color (APHA) | ≤10 |
| pH (10% solution) | 6.0–7.5 |
| water content (%) | ≤0.2 |
| specific gravity (25°C) | 1.034–1.037 |
Applications
- Anti-freeze additive in SC and SL formulations
- Co-solvent in aqueous pesticide concentrates
- Humectant in foliar spray formulations
- Plasticizer in seed treatment film coatings
- Solubilizer for active ingredients with limited water solubility
Key Features
- Effective anti-freeze protection down to -20°C
- Low mammalian toxicity (oral LD50 >20 g/kg in rats)
- Excellent compatibility with aqueous and semi-aqueous pesticide systems
- USP/food-grade quality available for reduced-risk applications
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CAS Number
57-55-6
Category
Agricultural / Crop ChemicalsAvailability
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