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  • Titration - Hanna Instruments Slovenija
    must be fast so that after the titrant s addition the reaction occurs within approximately one second The reaction must go to completion The reaction must have well known stoichiometry reaction ratios A convenient method of endpoint detection must be available In any titration there must be a quick quantitave reaction taking place as the titrant is added Manual titration is done with a burette and a long graduated tube that holds the titrant The amount of titrant used in the titration is determined by reading the difference between the volume of titrant in the burette before the titration and when the endpoint is reacted The most important factor for making accurate titrations is to read the burette volumes repeatedly Generally chemists use the bottom of the meniscus rounded liquid level to read the reagent volume in the burette Additional required instrumentation would be a burette a beaker a pipette to measure the sample volume an indicator solution and the standardized titrant Automatic Titration Automatic titration is done with automatic titrators These titrators deliver the titrant stop at the endpoint and calculate the concentration of the analyte automatically They are the best for repeatitive titrations A certain type of electrochemical measurement usually detects the endpoint Some complex analysis performed by automatic titrators are Acid base specific ion redox determination by pH mV measurement with potentiometric detection Determination of water with Karl Fischer reagent using coulumetric detection Determination of chlorine in aqueous solution with phenylarsene oxide using amperometric detection The required equipment would be the automatic titrator the standardized titrant a titrant reservoir a pipette to measure the sample volume a beaker and possibly a magnetic stir bar for stirring The automatic titrator must have an accurate liquid dispensing system In high accuracy systems this is typically a stepper motor driven piston burette a valve system to switch between titrant inlet and outlet and a titration tip to dispense the titrant into the sample solution These three main subsystems must be as accurate as possible with very low gear backlash in the burette drive mechanism low piston seal flexing accurate burette glass cylinder diamter low dead volume in the valve evaporation permeation and chemically resistant tubing and an anti diffusion titrant dispensing tip Standards and Standardization One of the substances involved in a titration must be used as a standard for which the amount of substance is present is accurately known The standard can be present either in the form of a pure substance or as a standard solution a solution whose composition is accurately known The titrant solution can be standardized in two ways using a primary standard or more commonly titrating it against a previously standardized solution Type of Titrations Acid base titrations This is the most common type of titration an acid base reaction simply exchange of protons On the following table and graph you can see the variation of pH during the titration of a solution of 0 1 M HCl with one solution of NaOH 0

    Original URL path: http://hannaservice.si/en/titration/10-english/222-titration-2 (2016-04-28)
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  • Potentiometric Titrator - Hanna Instruments Slovenija
    product used for removal of dirt dandruff skin particles oils and other contaminated particles As the scientists behind hair care progressed manufacturers synthesized chemical additives for use in shampoo as fragrance foaming agents and colored dyes Shampoo is now created and structured towards various hair types as well as to achieve a certain end result such as the reduction of dandruff or greasy hair Both the synthetic and natural ingredients used in a shampoo dictate the pH of that particular product The pH of a shampoo will alter the natural pH of skin and hair which ideally falls between pH 3 and 5 and pH 4 and 5 respectively thereby affecting their physical and chemical makeup Read more Potentiometric Titrator Twitter Share on Tumblr HI 84531 01 NEW Total Alkalinity Mini Titrator for Water Analysis HI 84529 01 NEW Titratable Acidity Mini Titrator for Dairy Analysis HI 84533 01 NEW Formol Number Mini Titrator for Wine and Fruit Juice Analysis HI 84530 01 NEW Total Acidity Mini Titrator for Water Analysis HI 904 NEW Karl Fischer Coulometric Titrator HI 903 Karl Fischer Volumetric Titrator For Moisture Determination HI 902C Automatic Titration System HI 901 Automatic Titration System HI 84532 Titratable

    Original URL path: http://hannaservice.si/en/titration/10-english/252-podkategorija-potentiometric-titrator-2 (2016-04-28)
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  • Potenciometrični Titratorji - Hanna Instruments Slovenija
    oils and other contaminated particles As the scientists behind hair care progressed manufacturers synthesized chemical additives for use in shampoo as fragrance foaming agents and colored dyes Shampoo is now created and structured towards various hair types as well as to achieve a certain end result such as the reduction of dandruff or greasy hair Both the synthetic and natural ingredients used in a shampoo dictate the pH of that particular product The pH of a shampoo will alter the natural pH of skin and hair which ideally falls between pH 3 and 5 and pH 4 and 5 respectively thereby affecting their physical and chemical makeup Read more Potenciometrični Titratorji Twitter Share on Tumblr HI 84531 01 NEW Total Alkalinity Mini Titrator for Water Analysis HI 84529 01 NEW Titratable Acidity Mini Titrator for Dairy Analysis HI 84533 01 NEW Formol Number Mini Titrator for Wine and Fruit Juice Analysis HI 84530 01 NEW Total Acidity Mini Titrator for Water Analysis HI 904 NEW Karl Fischer Coulometric Titrator HI 903 Karl Fischer Volumetric Titrator For Moisture Determination HI 902C Automatic Titration System HI 901 Automatic Titration System HI 84429 Titratable Acids Mini Titrator and pH Meter for the Dairy

    Original URL path: http://hannaservice.si/en/titration/8-slovensko/163-podkategorija-potentiometric-titrator (2016-04-28)
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  • Reagents & Accessories - Hanna Instruments Slovenija
    Dispensing Tubing and Fitting HI 70447 Fehling Solution B I 900505 5 mL Burette Assembly HI 900522 KF beaker HI 70449 EDTA solution 0 02 M HI 740475 Tube Set for Pump for Wine Titrator HI 70423 NaOH solution 0 11N N 9 HI 70424 Amino propanol Buffer HI 70446 Fehling Solution A HI 900100 Dosing Pump HI 900105 5 mL Burette HI 900110 10 mL Burette HI 900125 25 mL Burette HI 900150 50 mL Burette HI 900270 Aspiration Tube with Fitting HI 900280 Dosing Tube HI 900301 Overhead Stirrer Assembly HI 900310 Magnetic Stirrer HI 900900 Windows Compatible Software for HI 900 Series Titrators HI 900920 Temperature Probe HI 900930 RS232 Cable for PC Connection HI 70437 Potassium Iodide Concentrated 30 Solution HI 70438 Tris Buffer HI 70439 Sodium Thiosulfate 0 1 M HI 70440 Stabilized Iodine 0 02 N HI 70441 Stabilized Iodine 0 04 N HI 76320D NEW KF Electrode HI 900520 Beaker Assembly HI 70454 NaOH Solution 0 02 N HI 900527 Septum HI 900528 Solvent Port Plugs HI 900530 Titrant Bottle Top Assembly HI 900534 Waste Bottle HI 900531 Solvent Waste Bottle Top Assembly HI 900532 Desiccant Cartridge for Beaker or Titrant HI 900533 Desiccant Cartridge HI 70455 NaOH solution 0 01 M HI 70456 NaOH solution 0 1 M HI 70457 NaOH solution 1 M HI 70458 0 01 M H 2 SO 4 HI 70459 0 05 M H 2 SO 4 HI 70462 HCL solution 0 01 M HI 70463 HCL solution 0 1 N HI 70464 HCL solution 1 N HI 70465 Reagent for Hydrogen Peroxide Titration HI 70466 Phenylarsine Oxide Standard Solution HI 70467 Acetate Buffer pH 4 HI 70468 Potassium Iodide Powder HI 70469 0 00188N Iodine Standard Solution HI 70470 0 00564N Phenylarsine Oxide Standard Solution HI

    Original URL path: http://hannaservice.si/en/titration/10-english/256-podkategorija-reagents-accessories-2 (2016-04-28)
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  • Conductivity - Hanna Instruments Slovenija
    shampoo dictate the pH of that particular product The pH of a shampoo will alter the natural pH of skin and hair which ideally falls between pH 3 and 5 and pH 4 and 5 respectively thereby affecting their physical and chemical makeup Read more Conductivity Twitter Share on Tumblr Electrical Conductivity is the ability of a solution to conduct an electrical current Current flow in liquids carried by ions is different from metals where is carried by free electrons Ions are formed when a solid such as salt is dissolved in a liquid to form electrical components having opposite electrical charges The sodium chloride separates to form Na and Cl ions All ions present in the solutions contribute to the current flowing through the sensor and therefore contribute to the conductivity measurement Conductivity can be used as a measure of the concentration of ions present in the sample TDS Total dissolved solids TDS is a gravimetric measurement but because the solides in a solution are predominately present in ionic form they can be approximated with conductivity The TDS scale uses 2 μS cm 1 ppm part per million as CaCO3 expressed as 1 mg L TDS The method of measurement is the same the conductivity meters make the conversion and express the results of a measurement in TDS units Resistivity For low and very low ionic concentration the measured conductivity becomes difficult and not accurate Therefore the resistivity scale is used to express the results as opposed to fractions The numbers are exactly the inverse of each other The reciprocal of 0 10 μS cm or 1 0 10 x 10 6 S cm is then 10 x 106 ohms x cm 10 MΩ x cm This is also commonly referred to as mega ohms Either unit of measurement

    Original URL path: http://hannaservice.si/en/conductivity/10-english/223-prevodnost-2 (2016-04-28)
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  • TDS Bench Meters - Hanna Instruments Slovenija
    pH in shampoo Twitter Share on Tumblr Published 18 December 2015 Shampoo is a hair care product used for removal of dirt dandruff skin particles oils and other contaminated particles As the scientists behind hair care progressed manufacturers synthesized chemical additives for use in shampoo as fragrance foaming agents and colored dyes Shampoo is now created and structured towards various hair types as well as to achieve a certain end result such as the reduction of dandruff or greasy hair Both the synthetic and natural ingredients used in a shampoo dictate the pH of that particular product The pH of a shampoo will alter the natural pH of skin and hair which ideally falls between pH 3 and 5 and pH 4 and 5 respectively thereby affecting their physical and chemical makeup Read more TDS Bench Meters Twitter Share on Tumblr HI 4321 Research Grade Conductivity TDS Meter with USP EC TDS Resistivity Salinity and Temperature HI 3512 Two Channel pH ORP ISE EC TD NaCl Resistivity Benchtop Meter HI 2030 Edge Bench Conductivity Meter HI 2314 Benchtop Conductivity Meter with MTC HI 2316 NEW Bench Top EC and Resistivity Meter HI 23151 NEW Bench Top Multi Range Conductivity Meter

    Original URL path: http://hannaservice.si/en/conductivity/10-english/285-category-tds-bench-meters (2016-04-28)
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  • TDS Portable Meters - Hanna Instruments Slovenija
    18 December 2015 Shampoo is a hair care product used for removal of dirt dandruff skin particles oils and other contaminated particles As the scientists behind hair care progressed manufacturers synthesized chemical additives for use in shampoo as fragrance foaming agents and colored dyes Shampoo is now created and structured towards various hair types as well as to achieve a certain end result such as the reduction of dandruff or greasy hair Both the synthetic and natural ingredients used in a shampoo dictate the pH of that particular product The pH of a shampoo will alter the natural pH of skin and hair which ideally falls between pH 3 and 5 and pH 4 and 5 respectively thereby affecting their physical and chemical makeup Read more TDS Portable Meters Twitter Share on Tumblr HI 98188 Graphic Display Portable Meter EC Resistivity TDS NaCl Meter with USP HI 9835 Portable EC TDS NaCl C Meter HI 98360 EC TDS NaCl C Meter with PC Connectivity HI 99300 Portable EC TDS Temperature Meter Low Range Measurement HI 99301 Portable EC TDS Temperature Meter High Range Measurement HI 993310 Direct Soil Activity and Solution Conductivity Measurement Kit HI 9033 Multi range EC Portable Meter HI 9034 Multi range Portable TDS Meter HI 8633 Multi Range Conductivity Meter for use in production and quality control HI 8733 Multi range Portable EC Meter with Automatic Temperature Compensation HI 87314 EC and Resistivity Portable Meter HI 8730 Portable EC TDS and Temperature Meter HI 8731 Portable EC TDS and Temperature Meter with extended ranges HI 8732 Portable EC TDS and Temperature Meter with adjustable TDS factor HI 86301 TDS Portable Meter 1 mg L resolution HI 86302 TDS Portable Meter 0 01 g L resolution HI 86303 EC Portable Meter 1 S cm resolution HI 86304

    Original URL path: http://hannaservice.si/en/conductivity/10-english/298-category-tds-portable-meters (2016-04-28)
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  • TDS Testers - Hanna Instruments Slovenija
    a hair care product used for removal of dirt dandruff skin particles oils and other contaminated particles As the scientists behind hair care progressed manufacturers synthesized chemical additives for use in shampoo as fragrance foaming agents and colored dyes Shampoo is now created and structured towards various hair types as well as to achieve a certain end result such as the reduction of dandruff or greasy hair Both the synthetic and natural ingredients used in a shampoo dictate the pH of that particular product The pH of a shampoo will alter the natural pH of skin and hair which ideally falls between pH 3 and 5 and pH 4 and 5 respectively thereby affecting their physical and chemical makeup Read more TDS Testers Twitter Share on Tumblr HI 98129 pH Conductivity TDS Tester low range EC measurement HI 98130 pH Conductivity TDS Tester high range EC measurement HI 98311 DiST 5 EC TDS Temperature Tester low range measurement HI 98312 DiST 6 EC TDS Temperature Tester high range measurement HI 98331 Soil Test Direct Soil EC Tester HI 98300 DiST 1 TDS Tester with 1 mg L resolution and 0 65 TDS Factor HI 98301 DiST 1 TDS Tester with 1 mg L resolution and 0 5 TDS Factor HI 98302 DiST 2 TDS Tester with 0 01 g L resolution HI 98303 DiST 3 EC Tester with 1 S cm resolution HI 98304 DiST 4 EC Tester with 0 01 mS cm resolution Primo TDS Tester with 1 mg L resolution Primo 1 TDS Tester with 1 mg L resolution Primo 2 TDS Tester with 1 mg L EC resolution 0 1 C resolution Primo 3 TDS Tester with 1 mg L EC resolution 0 1 C resolution Primo 4 EC Tester with 0 01 mS cm resolution Primo

    Original URL path: http://hannaservice.si/en/conductivity/10-english/286-podkategorija-tds-testers-2 (2016-04-28)
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