Many workers have published various methods to measure refractive index of various liquids. Mostly, the measurement results are not traceable to SI units. A novel method is developed at CSIR-NPL, India (NPLI) to measure refractive of index of liquids using gauge blocks, metrological microscope ...
Refractive index measurement checks the purity and concentration of liquid, semi-liquid and solid samples. Refractive index values can also be determined for gases. When using a digital refractometer, liquids and semi-liquid samples can be measured with high accuracy (e.g....
It can efficiently and accurately measure the refractive index (nD) of various liquids such as transparent, semi transparent, dark, and viscous, as well as the mass fraction (Brix) of sugar solutions. Applications The fully automatic refrac...
Index of Refraction for common Liquids Common Fluids - Refractive Index FluidRefractive Index - n - Acetic Acid 1.37 Acetone 1.36 Alcohol, ethyl (ethanol) 1.36 Alcohol, methyl (methanol) 1.33 Alcohol, propyl 1.38 Aniline 1.586 Benzene 1.501 Benzyl benzoate 1.568 Carbon disulfide 1.63 Carbon tetrachlo...
Refractive index (nD) is defined as “the ratio of the speed of light in vacuum to that in a given medium” by IUPAC (International Union of Pure and Applied Chemistry) [1]. It is one of the important physical properties of transparent solid, liquid, and gas. It has been applied exten...
Since the 19thcentury, this straightforward scale has been employed to swiftly and accurately assess the concentration of various liquids.Brixhas also been foundational in establishing and utilizing standardized scales in pharmaceuticals, cosmetics, automotive, and R&D industries. ...
Refractive-index measurements of ten liquids were made at nine discrete wavelengths over the 589–1674-nm spectral range using a Hilger-Chance refractometer with a modified viewing system. The total error in refractive-index measurement was considered to be ±3 × 10−4. In all cases, the var...
关键词: materials science rare gases polarizability refractivity correlation functions lennard-jones potential liquids self-consistent field triple point electrical properties DOI: 10.1103/PhysRevB.37.6508 被引量: 4 年份: 1988 收藏 引用 批量引用 报错 分享 ...
Refractive index can be measured using an Abbe refractometer, by interferometry, or by using the Becke line test, where an optical microscope with a series of immersion liquids of known refractive index is used. The material is generally microtomed to produce a series of thin cross-sections. On...
IN measuring the refractive index of precious stones, we have succeeded in extending the range of the total reflectometer type of instrument by the preparation and use of liquids of higher refractivity than the sulphur in methylene iodide solution (nD<