Why It Matters
CaCO3 and iron-oxide scale plugs emitters and drip tape; need threshold antiscalants and acid to keep hardness and iron from nucleating in the lines
Solution Approach
CaCO3 and iron-oxide scale plugs emitters and drip tape; need threshold antiscalants and acid to keep hardness and iron from nucleating in the lines RawSource supplies the base chemicals that go into these programs. We can help with product selection, grade matching, and sourcing from multiple origins for supply security.
Typical Application Workflow
1
Application & Agronomic Review
Define the use (crop input, adjuvant, soil amendment, post-harvest) and the agronomic, regulatory, and tank-mix requirements.
2
Input & Grade Selection
Match the surfactant or adjuvant, nutrient source, chelate, or formulation aid to the active, water quality, and label.
3
Compatibility & Rate Trial
Confirm tank-mix compatibility, dose, and stability, and size packaging (jugs, drums, totes, bulk) to the season and logistics.
4
Field Validation
Validate efficacy and crop safety in field trials, and lock the spec and supply plan for the season.
Recommended Chemistries (4)
Hydroxyethylidene Diphosphonic Acid
CAS 2809-21-4
Phosphate Esters & Derivatives
Antiscalant
Phosphonate adsorbs onto incipient CaCO3 crystal faces at sub-stoichiometric dose (threshold effect), distorting growth so scale can't nucleate on emitters
Melting Point: 198-199 Boiling Point: 578.8 Solubility: 1.15e+01 g/L
Full Details
Amino Trimethylene Phosphonic Acid
CAS 6419-19-8
Phosphate Esters & Derivatives
Chelation / Sequestration
Sequesters Ca2+ and inhibits carbonate crystal growth; also stabilizes iron to prevent oxide plugging
Melting Point: 210 - 215 °C Solubility: 1000 mg/mL at 25 °C Vapor Pressure: 0.0000001
Full Details
Polyacrylic Acid Sodium (PAAS)
CAS 9003-04-7
Polymers & Resins
Conditioning
Low-MW polyacrylate disperses scale microcrystals and hardness fines so they pass through emitters instead of depositing
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Phosphoric acid
CAS 7664-38-2
Acids & Salts
pH adjuster
1805 (Phosphoric acid, solution) · Class Continuous low-dose acid injection holds pH below the carbonate saturation point, dissolving and preventing CaCO3 scale
Melting Point: 42 °C Boiling Point: > 130 °C at 760 mmHg Density: 1.892 at 25 °C
Full Details