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We provide analytical reagents for wet chemistry, chromatography, spectrometry, analytical microbiology, microscopy, titration, water quality control, and electrochemistry. Our reagents include high-purity acids, bases, and solvents, as well as specialty reagents for a variety of analytical applications, such as plasmas, Karl Fischer titrators, and derivatization reagents. We offer reagents in various purity grades, from AR and GR to high-purity reagents for ultra-trace analysis.
Standard Titration Solution
Titration, or titration measurement, is a quantitative analytical technique used to determine the precise concentration of an unknown compound or the purity of a substance. Proven and accurate titration analysis requires precisely calibrated and produced equivalence solutions. We offer a comprehensive range of titrants in various concentrations and packaging sizes to meet diverse application needs. In particular, our Codow® titrants, as ready-to-use products, set a quality benchmark for titration work.
Water Quality Analysis
We provide analytical products for water temperature measurement, identification of water color, turbidity, transparency, and odor and taste; we can analyze various parameters in water, including calcium, magnesium, sodium, potassium, chloride, sulfate, carbonate, bicarbonate, pH, dissolved oxygen, oxygen consumption, and total hardness.
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Indicators
We offer a comprehensive portfolio of high-quality indicators for observing chemical reactions. Our products are available in various packaging sizes, allowing you to obtain all the indicators needed for your specific application in one place. Our indicators enable you to accurately determine the endpoints of various titration types.
Caustic Alkalis & Bases
Howei provides high-quality alkali metal and monovalent silver and monovalent thallium hydroxides, such as sodium hydroxide, potassium hydroxide, and rubidium hydroxide.
Howei's Codow® brand offers a variety of alkalis and caustic sodas in various capacities, along with different packaging sizes and analytical certificates.
Karl Fischer Reagents
Moisture content in raw materials, intermediates, and finished products can affect many properties, including shelf life and stability. Karl Fischer titration is a well-established method for quantifying moisture content. This method is rapid and extremely accurate, capable of determining moisture content from 0.001% to 100% in a wide variety of samples.
Metals
We are committed to providing a comprehensive line of metal products to achieve reliable results. Our product line includes various grades of metals, metal salts, and metal oxides, ideal for a wide range of applications in research, development, production, and quality control. With carefully selected raw materials, state-of-the-art production technologies, and rigorous quality management, we guarantee high-purity products for a variety of analytical applications.
Test Paper & Test Strips
Test strips are a simple, effective, and low-cost analytical tool for rapid on-site detection of analytes. The test strip, coated with a chemical substance that reacts with the analyte, can be immersed in a sample solution or the sample can be added directly to the strip. The ease of use and high specificity of the test strips make them ideal for process control. Results can be obtained through visual colorimetry or a reflectometer.
Salts
Sodium chloride (SCC) provides inorganic salts formed by the combination of sodium ions (+1 valence) and acid radical ions. Most of these are readily soluble in water, including sodium chloride, sodium sulfate, and sodium carbonate. Sodium chloride is widely used in the pharmaceutical, food processing, and chemical industries.
Chromatography & Spectroscopy Reagents
We provide compounds or mixtures for identification and quantitative analysis that meet national and relevant international standards and possess the highest purity and lowest impurities. We offer a wide variety of analytical reagents for various techniques including wet chemistry, chromatography, spectroscopy, analysis, titration, and water quality control, including high-purity acids, bases, solvents, ion carriers, and derivatization reagents for a wide range of analyses.
Acids
Compounds that ionize in aqueous solution to produce only hydrogen ions are capable of accepting electron pairs. In the life sciences, from complex analyses to routine laboratory work or production, every need is unique, requiring different solutions. This necessitates providing a wide range of acidic substances with validated performance and content, along with relevant analytical reports and certification documents.
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