Xylene Extrapure AR, 99.8%, is a high-purity aromatic hydrocarbon solvent widely used in laboratories for analytical and research purposes. With a purity of 99.8%, it meets the standards for Analytical Reagent (AR) grade, making it ideal for precise scientific applications. It is commonly used as a solvent in chemical reactions, sample preparation, and chromatography.
Xylene Extrapure AR, 99.8%, is a high-quality aromatic hydrocarbon solvent renowned for its exceptional purity and reliability in scientific and industrial applications. With a purity level of 99.8%, this grade of xylene meets the rigorous standards required for Analytical Reagent (AR) grade, ensuring its suitability for precise and demanding laboratory work.
Key Characteristics:
Chemical Composition: Xylene is composed of three isomeric forms—ortho-xylene, meta-xylene, and para-xylene—each contributing to its versatile solvent properties. The mixture of these isomers in Xylene Extrapure AR provides balanced solubility for a wide range of organic compounds.
Purity: The 99.8% purity ensures minimal presence of impurities, making it ideal for sensitive applications where contamination could affect results. This high level of purity is critical for processes like chromatography, where any impurity could interfere with the separation and analysis of compounds.
Analytical Reagent (AR) Grade: As an AR-grade solvent, Xylene Extrapure meets strict criteria for analytical work, providing consistent performance and reliability. This makes it indispensable in laboratories focused on research, development, and quality control.
The purpose of adding sodium thiosulfate is to remove the excess iodine from the reaction mixture. This is important because iodine is a strong oxidizing agent and can cause side reactions with the organic compounds in the mixture.
Thymol blue is used as a pH indicator. It is insoluble in water but soluble in alcohol and dilute alkali solutions. It transit from red to yellow at pH 1.2–2.8 and from yellow to blue at pH 8.0–9.6. It is usually a component of Universal indicator.
Cupric (Copper II) Sulphate Pentahydrate Extrapure AR, 99.5% , The chemical formula for Copper Sulfate Pentahydrate is CuSO4·5H2O. The highly toxic, non-combustible, odorless blue crystalline powder has a nauseating metallic taste and turns white when dehydrated.
Brand Name: SISCO
Pack Size: 500g
Cas No: 7758-98-8.
Expiry date: July 2027
SODIUM THIOSULFATE (SOE dee um thi oh SUHL feyt) is used to treat cyanide poisoning. If a poisoning or overdose occurs, get emergency help. Do not treat a poisoning or overdose yourself. It is also a protective medicine used to prevent or lessen the kidney damage that can be caused by cisplatin chemotherapy.
Diphenylamine is used for control of superficial scald in stored apples Diphenylamine is the organic compound with the formula (C6H5)2NH.
It is a colourless solid, but samples are often yellow due to oxidized impurities. It is a weak base, with a KB of 10 14. With strong acids, it forms the water soluble salt.
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