Aromatics CRMs
Aromatic compounds generally refer to cyclic compounds that contain at least one delocalized bond in the molecule and have an "aromatic" odor. Their structure is your sadness, because they are not easy to decompose and are toxic to the environment and human body. In daily life, incomplete combustion of coal, wood, petroleum and other organic matter will produce polycyclic aromatic hydrocarbons that pollute the environment.
Aromatic compounds are also contained in foods such as smoked and baked goods. It can be seen that human beings are exposed to aromatic compounds everywhere, so the determination of their content is very important. Chromatographic analysis is a commonly used identification method, and aromatic certified reference materials are often used in qualitative and quantitative analysis, analytical method development, and instrument correction in various application industries. Such materials must meet certain standards to obtain certification.
Application fields
Synthetic pigments: Synthetic pigments have the advantages of bright colors, strong tinting power, stable properties, and firm bonding, etc., which are not available in natural pigments. They are mostly synthesized from coal tar. However, because aromatic compounds have certain toxic and side effects, the content in use is strictly regulated. The determination of the content of aromatic materials in these synthetic pigments requires the use of standard products for comparison, and the standard content of the pigment is obtained for the qualified application of the product.
Preservatives: Preservatives are a kind of food additives that can inhibit microbial activity and prevent food from spoiling. At present, the prescribed preservatives include 25 kinds of benzoic acid, sorbic acid and sodium benzoate, most of which are aromatic compounds. When using preservatives, they must also comply with the prescribed dosage to avoid damage from multiple organisms. Adding a certain range of preservatives to food is required to meet food standards. The determination of preservative content requires the use of chromatography for analysis, which requires the use of certified reference materials for reference.
Aromatic hydrocarbon solvent: Aromatic hydrocarbon solvents use reformed aromatic hydrocarbons as raw materials and can be used as ingredients for chronic paint and resin solvents, high-grade printing oils, and extractants for the production of hydrogen peroxide. Aromatic solvents are divided into different purity, such as analytical grade and chemical grade. The determination of its purity also needs to determine the content of impurities. Generally these impurities come from the reaction products of aromatic compounds, which requires the use of aromatic certified reference materials for method development and quantitative analysis.
Why choose Alfa Chemistry?
Alfa Chemistry is one of the largest providers of aromatics CRMs in the world and the quality assurance is of prime importance to Alfa Chemistry. The solvent from Alfa Chemistry in the world is synonymous with reliability and excellent quality. Because of the exacting nature of our business and the regulatory demands placed upon our industry, Alfa Chemistry continues to be at the forefront in terms of compliance, accreditations and certifications.
References
- Monika, S.; et al. Solvent extraction of aromatic components from petroleum derived fuels: a perspective review [J]. RSC Adv., 2013, 3, 10103–10126.
- Hao, T.; et al. Synthesis of gasoline and jet fuel range cycloalkanes and aromatics from poly(ethylene terephthalate) waste. Green Chem., 2019, 21, 2709.
- Alireza, S.; et al. Evaluating lignin valorization via pyrolysis and vapor-phase hydrodeoxygenation for production of aromatics and alkenes. Green Chem., 2020, 22, 2513–2525.
CAS Number: 527-60-6
Molecular Weight: 136.19
CAS Number: 84-51-5
Molecular Formula: C16H12O2
Molecular Weight: 236.27
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