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Sulfate

​​​​​​​​​​Background

Sulfate (SO42-) is fairly common in natural waters. Sulfate products such as ferric sulfate and ferrous sulfate are produced by reacting sulfuric acid with iron ore. These products have widespread use in water or wastewater treatment for phosphate precipitation, odor control, organics removal, coagulation, sludge conditioning, hydrogen sulfide control, metals precipitation and cyanide complexation.

ChemScan Analysis Methods

​ChemScan uses a variation of Standard Method 4500-S04-E for analysis. This is a Turbidimetric method, where sulfate is precipitated with barium chloride at low pH to form barium sulfate. The resulting light absorbance at 420 nm is proportionate to sulfate concentration.
Applied Spectrometry Associates, Inc.
2325 Parklawn Dr., Suite I, Waukesha, WI 53186
​Phone: 262-717-9500
Toll Free: 800-665-7133

Contact Us

  • Home
  • Applications
    • Municipal Water Monitoring >
      • Ammonia Feed
      • Chloramination Control
      • Chlorination
      • Color Analysis
      • Distribution Monitoring
      • Hardness Monitoring
      • Ion Exchange Breakthrough
      • Natural Organic Matter (NOM) Removal
      • Peak Point Chloramination Control
      • Phosphate Sequesterant Feed Control
      • Reservoir Monitoring
      • Security Monitoring
      • TOC Monitoring
      • Well Blending
    • Wastewater Monitoring and Control >
      • Aeration Control and Energy Cost Reduction
      • Biological Nutrient Removal
      • Biological Phosphorus Removal
      • Chemical Phosphorus Removal
      • Chloramination /Breakpoint Avoidance
      • Chlorination/De-Chlorination
      • De-Nitrification Monitoring
      • Nitrification
      • Nutrient Deficiency Analysis
      • Lagoon Discharge
      • SBR Stage Control
      • TOC Monitoring
      • UV Disinfection Control
    • Industrial Water Treatment >
      • Boiler Water Analysis
      • Cooling Water Analysis (Closed Loop)
    • Industrial Process Monitoring >
      • Electroless Plating
    • ASA Technical Papers (ALL)
    • ChemScan Installation Photos
  • Service
    • Contact Service
    • ChemScan Service Team
    • MSDS
    • Communication Protocols
    • Software Utilities
    • Service Videos
  • Parts
  • Company
    • Terms and Conditions
    • Contact Form (General Inquiry)
    • Contact Service
    • Application Data Sheet
    • Employment Opportunities
    • Representatives and Distributors
  • Products
    • ChemScan Mini Analyzer >
      • mini oP (Ortho Phosphate)
      • mini oP (Ortho Phosphate) Extended Range
      • mini LoP (Low Ortho Phosphate)
      • mini UV-254
      • mini LowAm (Low Ammonia)
      • mini Mn (Manganese)
      • mini LowChlor (Low Chlorine)
      • mini Sulfite
      • mini Mono (Monochloramine)
      • mini FreeAm (Free Ammonia)
      • mini Cu (Copper)
      • mini CrVI
      • mini Low CrVI
      • mini Fe (Iron)
      • mini Ni (Nickel)
      • mini Silica
    • ChemScan mini Accessories
    • ChemScan Process Analyzers >
      • ChemScan 2150/S Chloramination Analyzer
      • ChemScan 2150/DC Chem Feed Analyzer
      • ChemScan 2150/N Aeration Rate Analyzer
      • ChemScan 2150/NoP Chem Feed Analyzer
      • ChemScan 2150/NHoP Nutrient Analyzer
      • ChemScan 2150 Process Analyzer
      • ChemScan UV-3150 Process Analyzer
      • ChemScan 4100 Nutrient Control
      • ChemScan 6101 Nutrient Control
    • ChemScan Alkalinity Analyzer >
      • For Wastewater
      • For Water
    • ChemScan Accessories