Αποτελέσματα Αναζήτησης
1 Ιαν 2022 · Hexavalent chromium [Cr (VI)] is a global environmental pollutant that increases risk for several types of cancers and is increasingly being recognized as a neurotoxicant.
- Ascorbate is a Pro-Oxidant in Chromium-Treated Human Lung Cells
Hexavalent chromium (Cr(VI)) is transported into the cell...
- Hexavalent Chromium Effects on Motor Activity and Some Metabolic Aspects of Wistar Albino Rats
Hexavalent chromium compounds are considered to be...
- The Role of The Ligands
1. Introduction. The rapid prevalence of diabetes mellitus...
- A Systematic Review
Moreover, chromium may promote the biosynthesis of...
- Elemental Profile of Cerebrospinal Fluid in Patients With Parkinson's Disease
Forty-two patients with PD diagnosed according to the London...
- The Impact of Environmental Metals in Young Urbanites' Brains
In highly exposed subjects, there were four significant...
- South China
Yin et al. (1999) completed the initial data process and...
- Estrogen-dependent Modulation of Rat Brain Ascorbate Levels and Ischemia-Induced Ascorbate Loss
1. Introduction. Ascorbic acid (ascorbate) is a...
- Ascorbate is a Pro-Oxidant in Chromium-Treated Human Lung Cells
1 Μαΐ 2021 · Hexavalent chromium induces reactive oxygen species and impairs the antioxidant power of human erythrocytes and lymphocytes: decreased metal reducing and free radical quenching ability of the cells Toxicol.
Chromium plating is traditionally made from a solution of chromic acid (CrO3 which forms H 2 CrO 4 after dissolving in water) and sulfuric acid (H 2 SO 4) using insoluble anodes. The chromium is reduced to metal from the hexavalent state due to the catalytic effect of sulfate ions.
1 Ιουν 2022 · Defining Hexavalent. In order to show that plated chromium metal is not hexavalent, we must be able to define “hexavalent” in a way that people can understand. The term “valence” numerically describes the tendency of an atom to combine with other atoms by its electric charge.
27 Οκτ 2021 · Hexavalent, or “hex,” chrome, has been commonly used in industrial applications, including welding, electroplating, tanning, and a variety of metal processing and pigment production practices. Unfortunately, hex-chrome, in concentrated doses, can be toxic to humans when consumed in water and food.
This chapter contains sections titled: Principles. Theory of Chromium Electrodeposition. Hexavalent Chromium. Methods of Operations of Chromium Plating Solutions. Mixed Catalysts and Selfregulating Baths. Chromic Acid Baths: Operating Conditions. Throwing Power.
19 Μαρ 2022 · Occupational exposure to hexavalent chromium (Cr (VI)) may occur when Cr (VI) compounds are manufactured as end-products (e.g., chromate production) when they are used as starter-products in processes (e.g., electroplating), or when they are formed as process emissions (e.g., in welding) [1].
