Product Description
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Merck Chemicals (Shanghai) Co., Ltd. is the subsidiary of the globally operating group Merck KGaA, Darmstadt (Germany) and provides Chinese market with high quality life science and chemical products and services
The contact persons for the specific product groups of the Chemicals businesses are listed on the website of Merck Group in China.
AI Product Description
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The Test Kit Titrant for Water Determination is a specialized chemical reagent designed for the precise quantification of moisture content in various substances using volumetric titration, most commonly employing the Karl Fischer method. This product is indispensable across industries where trace water levels significantly impact product quality, safety, and stability, including pharmaceuticals, petrochemicals, food processing, and lubricants manufacturing. The titrant typically contains iodine, sulfur dioxide, an organic base (such as imidazole or morpholine), and a suitable solvent like methanol or a proprietary blend, formulated to react stoichiometrically with water molecules.
Upon addition to a sample, the titrant reacts immediately with any present moisture until the endpoint is reached, signaled by a distinct color change or an electrochemical shift detected by the instrument. This allows analysts to determine water concentration down to parts per million (ppm) levels with high accuracy and reproducibility. The kit format often includes pre-calibrated vials or bottles to ensure consistency and ease of use, minimizing preparation errors common with bulk reagents.
Handling this titrant requires strict adherence to safety protocols due to its hazardous nature. It is generally corrosive, toxic if swallowed, and harmful to aquatic life. Users must wear appropriate personal protective equipment, including chemical-resistant gloves, safety goggles, and lab coats. Work should be conducted in a well-ventilated area or fume hood to avoid inhaling vapors, which can cause respiratory irritation. In case of skin contact, immediate flushing with plenty of water is essential. Furthermore, the reagent is highly hygroscopic; containers must be tightly sealed after every use to prevent absorption of atmospheric moisture, which would compromise titration results. Proper disposal must follow local environmental regulations, as improper dumping poses significant ecological risks. Regular calibration of the titration system using standard water solutions is recommended to maintain analytical integrity. By ensuring rigorous safety measures and proper storage, laboratories can achieve reliable water determination results critical for quality control processes.