Hanna Instruments

Used in TA testing by titration to keep the solution mixing and ensure even distribution of the titrant into the solution. Stirring the solution being tested is essential for the accuracy of the test and this stir plate frees up your other hand and generally makes life much easier. Includes one stir bar. Speed variable from 1-1000 rpm. Recently cheaper stir plates have appeared on the market. We have purchased these units and used them, but they have a homemade quality and feel. This unit is professionally made by Hanna and you will not be disappointed with the quality. Dimensions: 4.8"L x 4.8"W x 1.8"H

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The HI96811 is a rugged, portable digital refractometer designed for sugar measurement of juice and must. The HI96811 reports sugar content as % Brix and has a high accuracy of ±0.2%. The operation of the meter is simplified with only two buttons: one button is to calibrate with distilled or deionized water and the other to take a measurement. All readings are automatically compensated for temperature variations according to the ICUMSA Methods Book standard and displayed within a 1.5 second response time. The sealed flint glass prism and stainless steel well are easy to clean. Just wipe with a soft cloth in preparation for the next sample. Sample size as small as 2 metric drops (100 μl) Sealed stainless steel well with high-grade optical prism made of flint glass Fast 1.5 second response time for temperature compensated readings The HI96811 Digital Refractometer converts the refractive index of a juice or must sample to % Brix. This conversion is based on the tables found in the ICUMSA Methods Book (International Commission for Uniform Methods of Sugar Analysis) that documents the changes in the refractive index with temperature for a percent by weight sucrose solution. Since the majority of sugar in grape juice and must is fructose and glucose instead of sucrose, the reading is sometimes referred to as “Apparent Brix”. Typical grapes at harvest will be between 19-24% Brix or degrees Brix (°Bx). The HI96811 is an easy-to-use tool for winemakers for measuring sugar in grapes or must, in the field or in the lab. Designed for winemaking sugar analysis Temperature Compensation algorithms based on sucrose solution 0 to 50% Brix range with an accuracy of +/- 0.2% Brix Making a Standard % Brix (Sucrose) Solution To make a Brix Solution, follow the procedure below: Place container (such as a glass vial or dropper bottle that has a cover) on an analytical balance. Tare the balance. Weigh out X grams of high purity sucrose (CAS #: 57-50-1) directly into a beaker. Add distilled or deionized water to the beaker so the total weight of the solution is 100g. Note: Solutions above 65% may need to be vigorously stirred or shaken and heated in a water bath to roughly 40°C (104°F). Remove solution when sucrose has dissolved and allow to cool before use. Refractive Index The HI96811 takes measurements based on a sample’s refractive index. The refractive index is a measurement of how light behaves as it passes through the sample. Depending on the sample’s composition, the light will refract and reflect differently. By measuring this activity with a linear image sensor, the sample’s refractive index can be assessed and used to determine its physical properties such as concentration and density. In addition to the linear image sensor, the HI96811 uses an LED light, prism and lens to make measurement possible. Variations in temperature will affect the accuracy of refractometry readings, so the use of temperature compensation is highly recommended for reliable results. The HI96811 contains a built-in temperature sensor and is programmed with temperature compensation algorithms in accordance with the ICUMSA Methods Book Standard for a percent by weight sucrose solution. Features-at-a-glance One-point calibration - Calibrate with distilled or deionized water Small sample size - Sample size can be as small as 2 metric drops (100 μl) Quick, accurate results - Readings are displayed in approximately 1.5 seconds Dual-level LCD - The dual-level LCD displays % Brix and temperature readings simultaneously Battery indicators - Battery percent level remaining at startup and low battery indicator Automatic shut-off - To conserve battery life the meter shuts off automatically after three minutes of non-use Stainless steel sample well - Easy to clean and corrosion-resistant IP65 water-resistant protection - Water resistant ABS plastic casing designed to perform under laboratory and field conditions. Automatic Temperature Compensation (ATC) - Samples automatically compensated for temperature variations 1 button calibration, only requires 2 metric drops of sample (100 μl), fast 1.5 second response time for temperature compensated readings IP65 Water Resistant Protection with ABS plastic casing for both lab and field conditions LCD display displays both %Brix and temperature simultaneously, automatic shut off after 3 min of non use to preserve battery life    

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The HI84500-62 are packets of stabilizer reagent required for determination of sulfur dioxide in wine using the HI84500 Sulfur Dioxide Mini Titrator for Wine Analysis. The HI84500 mini titrator uses two different titrant solutions that contain different concentrations of potassium iodate to measure a wide range of sulfur dioxide concentration in wine. Both low and high range measurements require the addition of HI84500-62 stabilizer powder to convert iodate into iodine, which in turn reacts with sulfur dioxide. The HI84500-62 powder is packaged into single use packets that are emptied into the sample prior to performing the titration. Pre-measured packets Clearly marked expiration date and lot number The HI84500-62 stabilizer powder packets are necessary to convert the iodate titrant into iodine. The iodine then reacts with sulfur dioxide and the HI3148B ORP electrode is used to detect the endpoint for both the low (1.0 to 40.0 ppm of SO2) and high (30 to 400 ppm of SO2) ranges. The decision by Hanna to use the HI84500-62 stabilizer powder packets and iodate titrant in place of a iodine titrant is due to shelf stability. Iodate offers much greater shelf stability than iodine. By using stabilizer packets the titrant solutions remain stable for longer periods of time.The HI84500 can be used with all wines, including red, which are difficult to test using traditional methods due to the difficulty to observe a distinctive color change when the endpoint is reached.   The HI84500 determines the free and total sulfur dioxide concentration in wine using the Ripper method. Excess iodide is added to the wine sample and reacts with the iodate titrant to produce iodine:   IO3- + 5I- + 6H+ → 3I2 + 3H2O   The iodine produced reacts with sulfur dioxide in the wine according to the redox reaction below:   H2SO3 + I2 → H2SO4 + 2HI   Replacement reagents required to operate the HI84500 include:   Low Range - 1.0 to 40.0 ppm of SO2 High Range - 30 to 400 ppm of SO2 Pump calibration standard HI84500-55 HI84500-55 Titrant solution HI84500-50 HI84500-51 Acid reagent HI84500-60 HI84500-60 Alkaline reagent (Total SO2) HI84500-61 HI84500-61 Stabilizer powder packets HI84500-62 HI84500-62    

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HI7007L is a premium quality pH 7.01 buffer solution. With lot number and expiration date clearly marked on the label and an air tight, tamper-proof seal to ensure the quality of the solution, Hanna’s line of pH calibration solutions are an easy way to get great pH measurements every time. Air tight bottle with tamper-proof seal for quality. Color coded label for easy identification of ph 7 buffer value. Perfect for routine maintenance to ensure accurate readings while extending the life of the electrode. Our pH Technical Buffer Solutions are dedicated to measurements that require extremely accurate pH monitoring, and come with a certificate of analysis prepared by comparison against NIST standards. Our pH Technical Buffer Solutions are dedicated to measurements that require extremely accurate pH monitoring, and come with a certificate of analysis prepared by comparison against NIST standards. Air tight bottle with tamper-proof seal Ensures quality and freshness of solution Each bottle marked with lot number and expiration date. Hanna buffers are specially formulated to have an expiration of 5 years from manufacture for an unopened bottle. Color coded label for easy pH buffer value identification Easy to identify different buffer values    

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HI7004L is a premium quality pH 4.01 buffer solution. With lot number and expiration date clearly marked on the label and an air tight, tamper-proof seal to ensure the quality of the solution, Hanna’s line of pH calibration solutions are an easy way to get great pH measurements every time. Air tight bottle with tamper-proof seal for quality. Color coded label for easy identification of pH buffer values. Perfect for routine maintenance to ensure accurate readings while extending the life of the electrode. Our pH Technical Buffer Solutions are dedicated to measurements that require extremely accurate pH monitoring, and come with a certificate of analysis prepared by comparison against NIST standards. Our pH Technical Buffer Solutions are dedicated to measurements that require extremely accurate pH monitoring, and come with a certificate of analysis prepared by comparison against NIST standards. Air tight bottle with tamper-proof seal Ensures quality and freshness of solution Each bottle marked with lot number and expiration date. Hanna buffers are specially formulated to have an expiration of 5 years from manufacture for an unopened bottle. Color coded label for easy pH buffer value identification Easy to identify different buffer values    

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The HI84500-55 is a 120 mL bottle of pump calibration standard that is used to calibrate the dosing system of the HI84500 Sulfur Dioxide Mini Titrator for Wine Analysis. A calibrated dosing pump allows for the accurate determination of the amount of titrant used when performing a titration. The amount of volume dosed along with the concentration of the titrant is used by the pre-programmed formula within the HI84500 in determining the exact concentration of sulfur dioxide. The pump calibration procedure should be performed anytime the titrant or ORP electrode is replaced. Standardized solution Clearly marked expiration date and lot number Air tight bottle with tamper-proof seal to ensure quality Analysis of sulfur dioxide in wine, as performed on the HI84500 mini titrator, utilizes a simple sample preparation, a high quality titrant dosing pump, potentiometric endpoint detector, and automatic computations. To maintain the high precision of the titrator, a simple pump calibration procedure is performed with HI84500-55 pump calibration solution. The pump calibration procedure involves the analysis of a known volume of a known solution. The pump calibration procedure should be performed anytime the titrant, syringe, tubing or ORP electrode is replaced. Periodic calibrations should be performed in order to accurately determine the free and total sulfur dioxide levels in wine.   The HI84500 determines the free and total sulfur dioxide concentration in wine using the Ripper method. Excess iodide is added to the wine sample and reacts with the iodate titrant to produce iodine:   IO3- + 5I- + 6H+ → 3I2 + 3H2O   The iodine produced reacts with sulfur dioxide in the wine according to the redox reaction below:   H2SO3 + I2 → H2SO4 + 2HI   Replacement reagents required to operate the HI84500 include:   Low Range - 1.0 to 40.0 ppm SO2 High Range - 30 to 400 ppm SO2 Pump calibration standard HI84500-55 HI84500-55 Titrant solution HI84500-50 HI84500-51 Acid reagent HI84500-60 HI84500-60 Alkaline reagent (Total SO2) HI84500-61 HI84500-61 Stabilizer powder packets HI84500-62 HI84500-62    

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.30M KCl (potassium chloride) solution for refillable pH/ORP electrodes. Fresh electrolyte solution ensures accurate calibration and measurement with your pH meter. For best results, electrolyte should be replenished or completely replaced every 3-6 months. To Use: Wearing Gloves, Drain existing electrolyte solution from the electrode by shaking upside down over the sink. You may need to use the tip of a small pipette or a syringe to break the surface tension of the liquid. Using the same pipette or syringe, replace the solution you just drained with a fresh lot from the bottle. Store capped and refrigerated and out of the reach of children.  

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The HI84502-55 is a 120 mL bottle of pump calibration standard that is used to calibrate the dosing system of the HI84502 TItratable Acidity Mini Titrator for Wine Analysis. With 4 mL of solution required per pump calibration, there is enough standard to perform approximately 30 pump calibrations. A calibrated dosing pump allows for the accurate determination of the amount of titrant used when performing a titration. The amount of volume dosed along with the concentration of the titrant is used by the pre-programmed formula within the HI84502 in determining the exact titratable acidity. The pump calibration procedure should be performed anytime the titrant or pH electrode is replaced. Routine calibration is recommended to ensure the highest of accuracy when performing a titration. Pre-measured solution Clearly marked expiration date and lot number Air tight bottle with tamper-proof seal to ensure quality Analysis of titratable acidity in wine, as performed on the HI84502 mini titrator, utilizes a simple sample preparation, a high-quality titrant dosing pump, potentiometric endpoint detector, and automatic computations. As the titrant comes pre-standardized, it is important to determine the amount of titrant delivered by the dosing pump by performing a pump calibration procedure. In this procedure, the analysis of a known volume of a known solution is titrated with to the pH 8.2 endpoint determined by the HI1048B pH electrode. The same pump calibration solution is used for both the low and high ranges. The pump calibration procedure should be performed anytime the titrant, syringe, tubing or pH electrode is replaced. It is recommended to do a pump calibration every time a new set of titrations are to be performed.   Replacement reagents required to operate the HI84502 include:   Low Range - 0.1 to 5.0 g/L of tartaric acid High Range - 4.0 to 25.0 g/L of tartaric acid Pump calibration standard HI84502-55 Titrant solution HI84502-50 Used to calibrate the dosing system of the HI84502 TA Mini Titrator for Wine Analysis with one bottle allowing for appx 30 (4mL) pump calibrations Clearly marked expiration date and lot number, Air tight bottle with tamper-proof seal to ensure quality.  

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HI740036P is a set of plastic beakers that are supplied with some of the Hanna test kits, photometers, and meters. Each set comes with 10 beakers that have graduated markings and are used for measuring (up to 100 mL) or for sample analysis. Durable plastic Graduated volume markings 10 piece set The HI740036P is a set of 10 replacement plastic beakers used with Hanna test kits and various meters. While Hanna offers rugged plastic beakers in several different sizes, the HI740036P are the 100 mL graduated beaker version.  

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The HI1048B is a glass body, refillable, sleeve junction pH electrode with a BNC connector. This electrode features a double junction reference, Hanna's Clogging Prevention System (CPS) technology and spherical glass sensing bulb made with general purpose glass. This pH electrode is ideal for wine must and juice due to their high solids content that would clog a standard general purpose pH electrode. Clogging Prevention System (CPS™) Technology Refillable Electrode Double Junction Design Hanna Instruments offers a wide variety of pH electrodes that are designed for many different applications. The type of glass used for sensing pH, bulb shape, body material, type of junction, type of reference and electrolyte used are just some of the design considerations.   The HI1048B uses general purpose (GP) glass, spherical bulb, glass body, sleeve junction with CPS™ technology, double junction and is refillable with 3.5M KCl, making it ideal for wine must, juice, and other samples with a high solids content.   General Purpose Glass Formulation General Purpose (GP) glass, as the name implies, is a standard glass formulation that is used for general use. A pH electrode with GP glass will have a resistance of 100 megaohms at 25°C and is suited for measuring the pH of samples that are at ambient temperatures. The HI1048B is suitable to use with samples that measure from 0 to 80°C.   Spherical Glass Tip The spherical shaped tip design allows for a wide area of contact with the measured sample. This permits a faster electrode response with a higher degree of stability.   CPS Sleeve Junction Clogging Prevention System (CPS) technology is an innovation in for the improvement of pH measurements in samples that have a high solids content. Conventional pH electrodes use ceramic junctions that can clog quickly when used in samples that have a high solids content such as wine must or juice. When the junction is clogged, the electrode does not function. CPS technology utilizes the porousness of ground glass coupled with a PTFE sleeve to prevent clogging of the junction. The ground glass allows the proper flow of the liquid, while the PTFE sleeve repels solids. As a result, pH electrodes with CPS technology take up to 20 times longer to be fouled as compared to conventional electrodes.   Double Junction Reference A double junction electrode has an internal compartment surrounding the reference wire. Silver ions are present in the electrolyte of the internal compartment, which houses the Ag/AgCl reference wire; the electrolyte outside this compartment is silver free. The double junction design means that virtually no silver from the electrode enters the sample. This design allows measurement in applications where silver ions in the sample are undesirable or for samples that contain sulfides that can cause the silver to precipitates and clog the junction. The clogging of the junction will result in drifty and erratic readings.   Refillable The HI1048B is a refillable probe. Since it is a double junction pH electrode, the fill solution is the HI7082 3.5M KCl. This solution does not contain any silver as with single junction electrode fill solutions.   Glass Electrode Body The glass body is ideal for laboratory use. The glass is resistant to many harsh chemicals and is easily cleaned. The glass body also allows for a fast transfer of heat to the internal reference electrolyte. The mV generated by the reference cell is temperature dependent. The faster the equilibrium the steadier the reference potential.   BNC Connector The HI1048B has a BNC connector. This type of connector is universal in that it can be used on any pH meter that has a female BNC probe input. Other types of connectors include DIN, screw type, T-type, and 3.5mm to name a few. These types of connectors tend to be proprietary for a particular type of meter and are not interchangeable.   Single Junction Versus Double Junction pH Electrodes Conventional electrodes are normally single junction. As depicted by the figure above, these electrodes have only a single junction between the internal reference wire and the external solution. Under adverse conditions, such as high pressure, high temperature, highly acidic or alkaline solutions, the positive flow of the electrolyte through the junction is often reversed resulting in the ingress of sample solution into the reference compartment. If this is left unchecked, the reference electrode can become contaminated, leading to complete electrode failure. Another potential problem with single junction electrodes is the clogging of the junction due to silver chloride (AgCl) precipitation. Silver can be easily precipitate in samples that contain Tris buffer or heavy metals. When the electrolyte solution makes contact with the sample, some AgCl will precipitate on the external face of the junction. The result is drifty readings obtained from the sensor.   Hanna’s double junction system, as the name implies, has two junctions, only one of which is in contact with the sample as shown in the figure. Under adverse conditions, the same tendency of sample ingress is evident. However, as the reference electrode system is separated physically from the intermediate electrolyte area, the contamination of the electrode is minimized. The likelihood of clogging of the junction is also reduced with a double junction electrode since the outer reference cell uses a fill solution that is “silver-free”. Since there is no silver present, there is no precipitate forming to clog the junction. Able to measure samples 0 - 80C Glass body, refillable sleeve junction PH electrode with a BNC connector Features a double junction reference with Hanna's Clogging Prevention System (CPS) technology and spherical glass sensing bulb made with general purpose glass Ideal for wine must and juice due to high solid content that would clog a standard general purpose PH Electrode  

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The HI84500-61 is a 120 mL bottle of alkaline reagent required for determination of total sulfur dioxide in wine using the HI84500 Sulfur Dioxide Mini Titrator for Wine Analysis. This alkaline reagent is used to raise the pH value of the sample prior to performing a total sulfur dioxide titration. With 5 mL of reagent required per total SO2 test, there is enough alkaline reagent for approximate 24 tests. Pre-measured solution Clearly marked expiration date and lot number Air tight bottle with tamper-proof seal to ensure quality The HI84500-61 alkaline reagent is necessary for the analysis of total sulfur dioxide. The alkaline reagent raises the pH and liberates bound sulfur dioxide. This pH adjustment ensures that all of the free and bound sulfur dioxide is accounted for to give an accurate measurement of total sulfur dioxide. The HI3148B ORP electrode is used to detect the endpoint for both the low (1.0 to 40.0 ppm of SO2) and high (30 to 400 ppm of SO2) ranges. The HI84500 can be used with all wines, including red, which are difficult to test using traditional methods due to the difficulty to observe a distinctive color change when the endpoint is reached.   The HI84500 determines the free and total sulfur dioxide concentration in wine using the Ripper method. Excess iodide is added to the wine sample and reacts with the iodate titrant to produce iodine:   IO3- + 5I- + 6H+ → 3I2 + 3H2O   The iodine produced reacts with sulfur dioxide in the wine according to the redox reaction below:   H2SO3 + I2 → H2SO4 + 2HI   Replacement reagents required to operate the HI84500 include:     Low Range - 1.0 to 40.0 ppm SO2 High Range - 30 to 400 ppm SO2 Pump calibration standard HI84500-55 HI84500-55 Titrant solution HI84500-50 HI84500-51 Acid reagent HI84500-60 HI84500-60 Alkaline reagent (Total SO2) HI84500-61 HI84500-61 Stabilizer powder packets HI84500-62 HI84500-62 Requires only 5mL per test. Pre-measured solution with clearly marked expiration date and lot numbers in a tamper proof bottle, can be utilized for all wines including red.  

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HI731319 is a set of 10 magnetic stir bars that are used with a magnetic stirrer whether independent or built into a meter. Each stir bar is coated with polytetrafluoroethylene (PTFE ) to provide chemical resistance to a wide variety of chemicals including aggressive substances. The HI731319 set of 10 magnetic stir bars made for a variety of applications. Used in a laboratory setting, a magnetic stirrer together with magnetic stir bars continually stir buffers and/or samples to keep them homogeneous. By keeping samples uniform during measurement and titration, erroneous results are eliminated by preventing any temperature gradients or inadequate mixing when chemicals are added to a sample. Chemically resistant PTFE coating Small size (1 " x 0.3 ") 10 piece set  

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