Fluorine & Chlorine Concentration Calculator

Fluorine & Chlorine Concentration Calculator

This online calculator helps you compute the following based on standard environmental test methods:

• Fluorine concentration (CHF_g / CHF_p) – gaseous or particulate (Equation 3.1)
• Total fluorine concentration (CHF_T) – sum of gaseous and particulate (Equation 3.2)
• Chlorine concentration (CCl) – based on titration (Equation 4.1)

---

1. Fluorine Concentration (CHF_g or CHF_p) – Equation 3.1

Cppm (ppm):


Cb (ppm):


V_soln (ml):


V_std (m³):

Result will appear here.

---

2. Total Fluorine Concentration (CHF_T) – Equation 3.2

CHF_g (mg/m³):


CHF_p (mg/m³):

Result will appear here.

---

3. Chlorine Concentration (CCl) – Equation 4.1

V_t (ml):


V_b (ml):


M (mol/L):


V_soln (ml):


V_a (ml):


V_std (m³):

Result will appear here.

---

Abbreviations & Notes

• CHF_g – Fluorine concentration (gaseous) in mg/m³
• CHF_p – Fluorine concentration (particulate) in mg/m³
• CHF_T – Total fluorine concentration (CHF_g + CHF_p)
• CCl – Chlorine concentration in mg/m³
• Cppm – Fluoride concentration in the test solution (ppm)
• Cb – Fluoride concentration in blank solution (ppm)
• V_soln – Total solution volume (ml)
• V_std – Volume of dry gas at standard conditions (m³)
• V_t – Volume of titrant for test (ml)
• V_b – Volume of titrant for blank (ml)
• M – Molarity of Na₂S₂O₃ (mol/L)
• V_a – Aliquot volume used for titration (ml)
• k – Conversion factor (35.5 mg·L/mol·mL)