Greenchem Analysis

Varachha, Surat, Gujarat

We are offering Burette. a burette (also buret) is a vertical cylindrical piece of laboratory glassware with a volumetric graduation etched permanently on its full length and a precision tap, or stopcock with plug and bore, on the bottom. the commonly used stopcocks can be a ground-glass barrel or a plastic plug made of ptfe, depending on the liquid to be carried. it is used to dispense known amounts of a liquid reagent in experiments for which such precision is necessary, such as in a volumetric analysis. burettes are extremely accurate, and have very small accuracy tolerances.

We are offering Measuring Cylinder. A graduated cylinder, measuring cylinder or mixing cylinder is a piece of laboratory equipment used to accurately measure the volume of a liquid. Water displacement can be used to find out the volume of a solid. Graduated cylinders are generally more accurate and precise for this purpose than flasks and beakers. However, when it comes to volumetric analysis, the accuracy of a graduated cylinder is not sufficient, and a pipette is used instead. Often, the largest graduated cylinders are made of polypropylene for its excellent chemical resistance or polymethylpentene for its transparency, making them lighter and less fragile than glass. Polypropylene (pp) is easy to repeatedly autoclave; however, autoclaving in excess of about 130 c (266 f) (depending on the chemical formulation: typical commercial grade polypropylene melts in excess of 160 c (320 f)), can warp or damage polypropylene graduated cylinders, affecting accuracy. A traditional graduated cylinder (a in the image) is usually narrow and high (so as to increase the accuracy of volume measurement) and has a plastic or glass bottom and a "spout" for easy pouring from the measured liquid. An additional version is wide and low. Other type of cylinders (b in the picture) have ground glass joints instead of a "spout", so that they can be closed with a stopper or connect directly with other elements of a manifold; they are also known as mixing cylinders. With this kind of cylinder, the metered liquid does not pour directly, but is often removed using a cannula. A graduated cylinder is meant to be read with the surface of the liquid at eye level, where the center of the meniscus shows the measurement line. Typically the accuracy of the graduated cylinder is +/-0.05 ml. The measuring cylinder is normally and most commonly used in laboratories or middle and high school science classes. The usual capacities are 5 ml up to 2000 ml.

We are offering Beaker. A beaker is a simple container for stirring, mixing and heating liquids commonly used in many laboratories. Beakers are generally cylindrical in shape, with a flat bottom. Most also have a small spout (or "beak") to aid pouring as shown in the picture. Beakers are available in a wide range of sizes, from one millilitre up to several litres.

We are offering Condensers. condenser (laboratory), a range of laboratory glassware used to remove heat from fluids.

We are offering Desiccators.desiccators are sealable enclosures containing desiccants used for preserving moisture-sensitive items such as cobalt chloride paper for another use. a common use for desiccators is to protect chemicals which are hygroscopic or which react with water from humidity.the contents of desiccators are exposed to atmospheric moisture whenever the desiccators are opened. it also requires some time to achieve a low humidity. hence they are not appropriate for storing chemicals which react quickly or violently with atmospheric moisture such as the alkali metals; a glove box or schlenk-type apparatus may be more suitable for these purposes.desiccators are sometimes used to remove traces of water from an almost-dry sample. where a desiccator alone is unsatisfactory, the sample may be dried at elevated temperature using abder halden's drying pistol.