ASTM E224 Analysis of Hydrochloric Acid

The standard test methods for the analysis of hydrochloric acid are covered under the ASTM E224 standard method. These t est methods provide for the classification of various grades of hydrochloric acid and for the determination of various impurities. The values reported are in SI units.... Read More

  • Average 30% Cost
    Savings

  • 100% Confidentiality
    Guarantee

  • Free, No-obligation
    Consultation

  • 100% Customer
    Satisfaction

    TRUSTED BY ENGINEERS FROM

    Scope:

    ASTM E224 standard method covers the procedures for the analysis of hydrochloric acid. The analytical procedures included in this standard are as follows:

    ParametersSections
    Total Acidity8 to 16
    Baumé Gravity17 to 26
    Sulfated Ash27 to 34
    Iron35 to 44
    Colour45 to 52
    Total Sulfur53 to 59

    Test procedure:

    The following procedures are described in ASTM E224

    Total acidity determination: A weighed sample of the acid is diluted in water and titrated with standardized 0.5 meq/mL (N) sodium hydroxide solution, using phenolphthalein as the indicator.

    Baumé gravity determination: A sample of hydrochloric acid is placed in a hydrometer cylinder and when the temperature is constant, the Baumé gravity is read from the glass hydrometer. The Baumé gravity is used to classify various grades of hydrochloric acid.

    Sulfated ash content determination: A weighed sample of acid, to which sulfuric acid has been added, is evaporated, ignited, and the residue is weighed.

    Iron content determination: The iron is reduced and determined calorimetrically with 1,10-phenanthroline (ortho-phenanthroline), which forms an orange-red complex with ferrous iron. The intensity of the color is measured in a photometer calibrated against standardized solutions.

    Color determination: An arbitrary color scale is used that is based on the color produced by adding known amounts of ferric iron to the hydrochloric acid.

    Total sulfur content determination: A sample of acid is treated with bromine to oxidize any oxidizable sulfur compounds to sulfate. The sulfate is precipitated and weighed as barium sulfate.

    Video 01: Titration of HCl with NaOH

    Specimen size:

    The size of the sample used for ASTM E224 testing shall be sufficient to perform all analyses without the reuse of any portion of the sample

    Data:

    The calculations for the analytical procedures described in ASTM E224 are as follows,

    V= corrected mL of NaOH solution required for titration of the sample, N= normality of NaOH solution, W= sample used

    The Platinum-Cobalt color scale has wide-spread use to determine the color of HCl.

    M= iron found from the calibration curve

    R= weight of evaporating dish and residue, D= weight of the evaporating dish, W= sample used

    A= BaSO4 precipitate, W= sample used

    Conclusion:

    ASTM E224 standard method covers the procedures for the analysis of hydrochloric acid.

    OUR SERVICES

    Core Materials Testing Services

    Metrology

    A variety of microscopy and spectroscopy tools available for precise measurements from the nano to the meter scale.

    Metrology Testing Services POPULAR TESTS:

    TEM SIMS Profilometry

    Materials Testing

    ASTM and ISO standard and custom chemical, mechanical, thermal, corrosion tests, etc. for all materials metals, ceramic or polymers.

    Materials Testing Services POPULAR TESTS:

    Nondestructive Testing Electrical Testing Chemistry Analysis

    Product Testing

    Thousands of tests for product quality and reliability under heat, humidity, temperature shock, vibration, drop, electrostatic discharge.

    Product Testing Services POPULAR TESTS:

    Vibration Testing Humidity Testing Accelerated Aging

    Looking for Material Testing?

    We have already delivered 10000+ Material Test results to top companies

      Send us a request

        Process for testing
        •  
          STEP 01

          You share material and testing requirements with us

        •  
          STEP 02

          You ship your sample to us or arrange for us to pick it up.

        •  
          STEP 03

          We deliver the test report to your email.

          Let’s work together!

          Share your testing requirements with us and we will be happy to assist you.

          ddd Just share your testing requirements and leave the rest on us!
          • Quick Turnaround and Hasslefree process
          • Confidentiality Guarantee
          • Free, No-obligation Consultation
          • 100% Customer Satisfaction

            ddd

            Let us combine our capabilities to achieve success!!

              idea icon
              Want to connect with an expert before you leave?