Solution Approach
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 Treatment Workflow
1
Water & System Assessment
Characterize the water and the system — hardness, alkalinity, pH, TDS/conductivity, microbial load, and the metallurgy and temperatures of the equipment being protected.
2
Program & Chemistry Selection
Match coagulants, flocculants, scale and corrosion inhibitors, biocides, or pH adjusters to the water profile and discharge limits, factoring compatibility with any existing program.
3
Jar Testing & Dosing
Confirm coagulant and flocculant dose and feed point by jar test, set inhibitor and biocide treat rates, and size packaging (drums, totes, bulk) to consumption.
4
Monitoring & Control
Track residuals, turbidity, ORP, corrosion coupons, and effluent compliance, adjusting chemistry and dose as feedwater and load change.
Recommended Chemistries (6)
Hydroxyethylidene Diphosphonic Acid
CAS 2809-21-4
Phosphate Esters & Derivatives
Primary CaCO3 scale inhibitor
HEDP adsorbs onto nascent CaCO3 nuclei at sub-stoichiometric (threshold) dose, distorting crystal growth so scale stays dispersed; the workhorse cooling-tower antiscalant
Melting Point: 198-199 Boiling Point: 578.8 Solubility: 1.15e+01 g/L
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Amino Trimethylene Phosphonic Acid
CAS 6419-19-8
Phosphate Esters & Derivatives
Multi-functional phosphonate
ATMP gives strong CaCO3 threshold inhibition and chelates the trace Fe/Cu that catalyze scale and corrosion; broad pH tolerance for towers
Melting Point: 210 - 215 °C Solubility: 1000 mg/mL at 25 °C Vapor Pressure: 0.0000001
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DTPMPA (Diethylenetriamine Penta(methylenephosphonic acid))
CAS 15827-60-8
Phosphate Esters & Derivatives
High-temperature phosphonate
High charge density and superior high-temperature stability make DTPMPA effective at the elevated skin temperatures and high cycles where HEDP/ATMP weaken
Physical Description: Solid; 49-51% Aqueous solution: Clear amber to …
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Phosphonobutane Tricarboxylic Acid
CAS 37971-36-1
Phosphate Esters & Derivatives
Chelation / Sequestration
PBTC tolerates free chlorine and high calcium far better than aminophosphonates, so it survives oxidizing-biocide programs without losing inhibition
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Polyacrylic Acid Sodium (PAAS)
CAS 9003-04-7
Polymers & Resins
Conditioning
Low-MW polyacrylate disperses precipitated CaCO3 and silt and prevents phosphonate-calcium (Ca-phosphonate) deposits, completing the phosphonate/polymer program
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HPAA (2-Hydroxyphosphonoacetic Acid)
CAS 23783-26-8
Phosphate Esters & Derivatives
Chelation / Sequestration
HPAA combines scale-threshold action with mild ferrous-corrosion inhibition and good chlorine stability, useful in high-hardness, oxidizer-dosed towers
Physical Description: Brown liquid. Slight acrid odor
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