· Tamm and coworkers have expanded the use of their WCA-NHC ligand, where the carbene centre bears a formal positive charge towards antimony. 30 The synthetic protocol was identical to that of its lighter arsenic congener (vide supra), wherein the salt metathesis reaction of SbCl 3 with (WCA-NHC)Li˙ − toluene salt afforded dichlorostibane …

 · determination of arsenic and antimony together: instead of separating arsenic from antimony in the hydrochloric-tartaric acid solution which was finally obtained, dilute the solution to four times its volume; pass sulphuretted hydrogen to saturation; filter the combined sulphides on a 4 cm. filter (weighed and dried in weigh-bottle at 110° c.); …

Arsenic (As) and antimony (Sb) are known as an environmental contaminant with cardiotoxicity properties. The endoplasmic reticulum (ER) is the largest calcium reservoir in the cell, and its calcium homeostasis disorder plays a vital role in endoplasmic reticulum stress (ERS) and apoptosis. The objective of this study was to investigate whether ...

 · It is still not clear how arsenic compounds exert their genotoxic effect. It may be connected with an inhibition of DNA repair or the induction of oxidative stress. Little …

 · Arsenic and antimony are metalloids that exhibit similar geochemical behavior and are often found in the same mineral associations, co-occurring in mine waste derived …

 · Antimony occurs in tri- (+3) and pentavalent (+5) compounds and is found in the Earth's crust mostly associated with sulfur as stibnite and in ores associated with arsenic. Antimony is a group VA element of the periodic table and it has many of the same chemical and biological properties as the element arsenic. Stibine gas is odorless.

Arsenic, antimony, selenium and other trace elements in sediments of the La Paz Lagoon, peninsula of Baja California, Mexico Mar Pollut Bull . 2001 Mar;42(3):174-8. doi: 10.1016/s0025-326x(00)00123-5.

 · In the following data the elimination from metal containing 100 of copper is seen to be 0.209 of arsenic and 0.118 of antimony, which would represent 0.104 per cent, of arsenic and 0.059 per cent, of antimony on …

 · Antimony occurs in tri- (+3) and pentavalent (+5) compounds and is found in the earth's crust mostly associated with sulfur as stibnite and in ores associated with arsenic. Antimony is a group VA element of the periodic table and it has many of the same chemical and biological properties as the element arsenic. Stibine gas is odorless.

 · The removal of arsenic and antimony compounds is almost proportional to the removal efficiency of NaCI. The removal of As(V) and Sb(V) is much higher than As(III) …

 · The inhibiting effect of the decomposition products of arsenic and antimony sulphide minerals on gold dissolution is not due primarily …

Arsenic, antimony, and other trace element contamination in a mine tailings affected area and uptake by tolerant plant species Environ Geochem Health. 2011 Aug;33(4):353-62. doi: 10.1007/s10653-011-9378-2. ... Water Supply Substances Metals ...

 · Arsenic, antimony, and thallium are examples of toxic elements. Antimony is a very popular element in the environment, and its trivalent chemical species is about ten times more toxic as oxidized Sb (V) [ 6 – 10 ]. Another important and interesting metalloid is arsenic, whose inorganic species are much more toxic than organic ones [ 1, 11 ].

 · Antimony (atomic symbol: Sb, atomic number: 51) is a Block P, Group 15, Period 5 element with an atomic radius of 121.760. The number of electrons in each of antimony's shells is 2, 8, 18, 18, 5 and its electron configuration is [Kr] 4d 10 5s 2 5p 3.

The other metalloid elements of the periodic table group 15, antimony and bismuth, also undergo biomethylation to some extent. Trimethylstibine formation by microorganisms is now well established, but this process apparently does not occur in animals. Formation of trimethylbismuth by microorganisms has been reported in a few cases.

 · ores containing silver in arsenic and antimony combinations offer considerable difficulties in cyanidation and it has usually been considered that the removal of these compounds by concentration was the only way …

 · Ores containing silver in Arsenic and Antimony combinations offer considerable difficulties in cyanidation and it has usually been considered that the removal of these compounds by concentration was …

The problem was caused by certain fungi that grew in the presence of inorganic arsenic to form a toxic, garlic-odored gas. The garlic odor was actually put to use in a very delicate microbiological test for arsenic. In 1933, the gas was shown to be trimethylarsine. It was not until 1971 that arsenic methylation by bacteria was demonstrated.

 · Antimony. The largest applications for metallic antimony are an alloy with lead and tin and the lead antimony plates in lead–acid batteries. Alloys of lead and tin with antimony have improved properties for solders, bullets, and plain bearings. Antimony can be used in fire retardants for many commercial and domestic products.

The problems of determination of arsenic,antimony,bismuth and mercury in geochemical samples by hydride generation-atomic fluorescence spectrometry (HG-AFS),such as blank,preparation,separation,interference,pollution of samples,the fault and accessories of equipment,were analyzed,and the attentive notes and the solving methods were …

 · Arsenic (As) and antimony (Sb) are two metalloids often mentioned together due to their belonging to group V of the periodic table, which gives them common characteristics ( Tab. 1 ). They are most often mentioned for problems of toxicity and pollution of soils, lakes and drinking water supply; a large literature is available on this subject.

The typical mineralogical composition is as follows: quartz, micas, K-feldspar, olivine-group minerals, magnetite, goethite, hematite, jarosite, and sulfides. The mine tailings were …

 · The effects of arsenic and antimony sulphide minerals on the extraction of gold from a synthetic ore consisting essentially of free gold and glass sand were investigated. The amount of mineral added in each test …

 · A chemico-toxicological similarity between arsenic and antimony exists and their toxicology is often seen. Indeed, both elements possess several common …

 · Determination of Arsenic and Antimony Together: Instead of separating arsenic from antimony in the hydrochloric-tartaric acid solution which was finally obtained, dilute …

 · Arsenic (As) and antimony (Sb) are trace elements with metalloid properties, showing a wide distribution in the environment (Kabata-Pendias & Mukherjee, 2007 ). Both are chalcophile elements and usually co-occur in hydrothermal sulfide ores (Johnston et …

 · Arsenic (As) and antimony (Sb) are considered as priority environmental pollutants and their accumulation in crop plants particularly in rice has posed a great …

 · Determination of Arsenic and Antimony Together: Instead of separating arsenic from antimony in the hydrochloric-tartaric acid solution which was finally obtained, dilute the solution to four times its volume; pass sulphuretted hydrogen to saturation; filter the combined sulphides on a 4 cm. filter (weighed and dried in weigh-bottle at 110° C.); wash …

： The problems of determination of arsenic,antimony,bismuth and mercury in geochemical samples by hydride generation-atomic fluorescence spectrometry(HG-AFS),such as blank,preparation,separation,interference,pollution of samples,the fault and ...