it has properties that are intermediate between those of chlorine and iodine. Bromine is one of the most abundant and ubiquitous of the recognizedtrace elementsin the biosphere. However, it has not been conclusively shown to perform any essential function in animals, plants or microorganisms (Pavelk...
In chemistry, the formula weight is a quantity computed by multiplying the atomic weight (in atomic mass units) of each element in a chemical formula by the number of atoms of that element present in the formula, then adding all of these products together....
The invention provides a decorative type styrene-acrylic bromine carbon latex fire-retardant coatings and preparation method thereof. The induction of flameretardant element bromine and synthesis of intrinsic flamertardant polymer resin can increase ageing effect and flame retardant property of fire-...
The chromatographically separated fractions are identified by their retention times and elementspecific detection with a microwave plasma detector. Methyl bromide, 1,2-dibromoethane, and vinyl bromide are analysed in exhaust gases in cases where the gasoline contains 1,2-dibromoethane as an additive...
Chlorine to bromine ratios remain nearly constant at 430 ± 130 (1σ) over a Br concentration range of 60–1300 ppb, similar to the exospheric ratio (390), and independent of the basalt type. Along the MAR, chlorine can be described as a conventional incompatible trace element which ...
(IA) of (I) to form a new structure in which (III) are incorporated. Pref. (IA) contains C1 and/or F atoms. The cell may contain ion type(s) with the opposite charge to (III); and/or ion(s) contg. gp. IA and IIA element(s) and/or ion(s) contg. O, S, P. Bi, Ti,...
After 5 repeated reactions, the desulfurization rate of coal samples can reach 90%. In order to explore the change pattern of sulfur element form and content, X-ray photoelectron spectroscopy (XPS) was used to analyze the change of sulfur form in the solid phase (coal). Ion chromatography (...
The temporal variability was first examined between the two years, with no significant differences detected in the concentrations of TTHMs, BrTHMs, or the four individual THM species. The second temporal element examined was the seasonal pattern for winter, spring, and summer. The concentrations of...