What are the characteristics of sodium hypochlorite?

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20 Dec 2016

 Sodium hypochlorite

As a bleaching agent for domestic use it usually contains 5% sodium hypochlorite (with a pH of around 11, it is irritating).

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Tungsten Trioxide

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22 Nov 2016

 Tungsten trioxide is nearly exclusively created by calcination of APT under oxidising conditions. is probably the most crucial, highly pure intermediates for making other tungsten compounds including tungsten metal powder. From the latter application, it had been substituted to some large extent by tungsten blue oxide. For the bright yellow colour it really is used as a pigment in oil and water colours. It's utilized in a multitude of catalysts, most recently for the charge of pollution and industrial hygiene .

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Reactivity Profile

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13 May 2016

 produce inorganic oxidizing agent such as selenium trioxide may react with reducing agents, heat and products that may be gaseous (which pressure vessels closed). The products may be, the situation further reactions (such as combustion in air). Chemical reduction of materials in this group can quickly or even explosive, but often requires initiation (heat, sparks catalyst, the addition of a solvent). explosive mixtures of inorganic oxidizing agents often exist with reducing agents remain unchanged for a long time when the initiation is prevented. Such systems are usually mixtures of solids, but include a combination of physical states. Certain inorganic oxidizing agents are metal salts which are soluble in water; Diluted resolution but not to remove the oxidizing power of these materials. The organic compounds generally have a certain power and to reduce, in principle, be able to react with compounds of this class. the actual reactivity greatly varies with the identity of the organic compound. inorganic oxidant may react violently with active metals, cyanides, esters, and thiocyanates.

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Why is dimethylmercury toxic?

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5 Jan 2016

            dimethylmercury is one of the most potent neurotoxins known. It readily crosses the blood-brain barrier, probably due to its formation of a methylmercury-cysteine complex. It causes ataxia (lack of coordination), sensory disturbance and changes in mental state. It inhibits several stages of neurotransmission in the brain. It is a cumulative poison, being very slowly removed (excreted) from the body, and by the time its effects are noted it is too late to do anything about it.

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Why is this medication prescribed?

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10 Dec 2015

       Arsenic trioxide is used to treat acute promyelocytic leukemia (APL; a type of cancer in which there are too many immature blood cells in the blood and bone marrow) in people who have not been helped by other types of chemotherapy or whose condition has improved but then worsened following treatment with other types of chemotherapy. Arsenic trioxide is in a class of medications called anti-neoplastics. It works by slowing or stopping the growth of cancer cells.

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Application of Metal products

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14 May 2015

 
Metal (carbide)–carbon eutectic fixed points when applied to radiometry should operate at a temperature preferably exceeding 3000 K, have a large aperture, be robust and have long plateau duration. The large-tube-diameter BB3500YY furnace, recently introduced at the National Metrology Institute of Japan (NMIJ), has been tuned for such fixed-point realization. A novel cell structure with an internal insulation of highly purified carbon-composite sheet material was designed and tested. This resulted in improved robustness, immunity to furnace temperature nonuniformity and extended plateau duration. The design was applied to a hyper-eutectic porous ingot cell, and a reproducible plateau was observed. Preliminary results for a large aperture cell with an aperture diameter of 8 mm are also reported.
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about metal

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19 Mar 2015

A metal is a material (an element, compound, or alloy) that is typically hard, opaque, shiny, and has good electrical and thermal conductivity. Metals are generally malleable — that is, they can be hammered or pressed permanently out of shape without breaking or cracking — as well as fusible (able to be fused or melted) and ductile (able to be drawn out into a thin wire). About 91 of the 118 elements in the periodic table are metals (some elements appear in both metallic and non-metallic forms).
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Introduction and Applications of Palladium chloride

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7 Nov 2014

Palladium  chloride,  are the chemical compounds with the formula PdCl2. PdCl2 is a common starting material in palladium chemistry – palladium-based catalysts are of particular value in organic synthesis. It is prepared by chlorination of palladium.
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barium uses

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31 Oct 2014

The most common naturally occurring minerals of barium are barite (barium sulfate, BaSO4) and witherite (barium carbonate, BaCO3), both being insoluble in water. Barium's name originates from the alchemical derivative "baryta", which itself comes from Greek βαρύς (barys), meaning "heavy." Barium was identified as a new element in 1774, but not reduced to a metal until 1808, shortly after electrolytic isolation techniques became available.
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Introduction of Silicon dioxide

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24 Oct 2014

Silicon dioxide, also known as silica (from the Latin silex), is a chemical compound that is an oxide of silicon with the chemical formula SiO2. It has been known since ancient times. Silica is most commonly found in nature as quartz, as well as in various living organisms. Silica is one of the most complex and most abundant families of materials, existing both as several minerals and being produced synthetically. Notable examples include fused quartz, crystal, fumed silica, silica gel, and aerogels. Applications range from structural materials to microelectronics to components used in the food industry.
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