What is Metallic compounds?

Definition of Metallic compounds
A metallic compound is a compound that contains one or more metal elements.
Metallic compounds are good conductors of heat and electricity.
Metallic compounds are very malleable and can be rolled into sheets and such and not break.
Metallic compounds are also ductile, which means they can be made to form wires.
Metallic bonding constitutes the electrostatic attractive forces between the delocalized electrons, called conduction electrons, gathered in an "electron sea", and the positively charged metal ions. Understood as the sharing of "free" electrons among a lattice of positively charged ions (cations), metallic bonding is sometimes compared with that of molten salts; however, this simplistic view holds true for very few metals. In a more quantum-mechanical view, the conduction electrons divide their density equally over all atoms that function as neutral (non-charged) entities. Metallic bonding accounts for many physical properties of metals, such as strength, malleability, ductility, thermal and electrical conductivity, opacity, and luster.
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What is the characteristics of Rhodium Powder?

Rhodium is a actinic aspect that is a rare, silvery-white, hard, and chemically apathetic alteration metal and a affiliate of the platinum group. It has the actinic attribute Rh and diminutive amount 45. It is composed of alone one isotope, 103Rh. Naturally occurring rhodium is begin as the chargeless metal, adulterated with agnate metals, and never as a actinic compound. It is one of the rarest adored metals and one of the a lot of cher (gold has back taken over the top atom of amount per ounce).
Rhodium is a alleged blue-blooded metal, advancing to corrosion, begin in platinum- or nickel ores calm with the added associates of the platinum accumulation metals. It was apparent in 1803 by William Hyde Wollaston in one such ore, and called for the rose blush of one of its chlorine compounds, produced afterwards it reacted with the able acerbic admixture aqua regia.
The element's above use (about 81% of apple rhodium production) is as one of the catalysts in the three-way catalytic converters of automobiles. Because rhodium metal is apathetic adjoin bane and a lot of advancing chemicals, and because of its rarity, rhodium is usually adulterated with platinum or aegis and activated in high-temperature and corrosion-resistive coatings. White gold is generally argent with a attenuate rhodium band to advance its optical consequence while admirable argent is generally rhodium argent for befoul resistance.
Rhodium detectors are acclimated in nuclear reactors to admeasurement the neutron alteration level.
Characteristics
Rhodium is a hard, silvery, durable metal that has a high reflectance. Rhodium metal does not normally form an oxide, even when heated. Oxygen is absorbed from the atmosphere only at the melting point of rhodium, but is released on solidification. Rhodium has both a higher melting point and lower density than platinum. It is not attacked by most acids: it is completely insoluble in nitric acid and dissolves slightly in aqua regia.
Rhodium belongs to group 9 of the periodic table but has an atypical configuration in its outermost electron shells compared to the rest of the members. This can also be observed in the neighborhood of niobium (41), ruthenium (44), and palladium (46).
Naturally occurring rhodium is composed of only one isotope, 103Rh. The most stable radioisotopes are 101Rh with a half-life of 3.3 years, 102Rh with a half-life of 207 days, 102mRh with a half-life of 2.9 years, and 99Rh with a half-life of 16.1 days. Twenty other radioisotopes have been characterized with atomic weights ranging from 92.926 u (93Rh) to 116.925 u (117Rh). Most of these have half-lives shorter than an hour, except 100Rh (half-life: 20.8 hours) and 105Rh (half-life: 35.36 hours). There are also numerous meta states, the most stable being 102mRh (0.141 MeV) with a half-life of about 2.9 years and 101mRh (0.157 MeV) with a half-life of 4.34 days. (See isotopes of rhodium).
The primary decay mode before the only stable isotope, 103Rh, is electron capture and the primary mode after is beta emission. The primary decay product before 103Rh is ruthenium and the primary product after is palladium.
Applications
The primary use of this element is in automobiles as a catalytic converter, which changes harmful emissions from the engine into less polluting gases.
Rhodium is used as an alloying agent for hardening and improving the corrosion resistance of platinum and palladium. These alloys are used in furnace windings, bushings for glass fiber production, thermocouple elements, electrodes for aircraft spark plugs, and laboratory crucibles.
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What is Potassium used for?

Potassium is the actinic aspect with the attribute K (from Neo-Latin kalium) and diminutive amount 19. Elemental potassium is a bendable silvery-white acrid metal that oxidizes rapidly in air and is actual acknowledging with water, breeding acceptable calefaction to burn the hydrogen emitted in the reaction.
Because potassium and sodium are chemically actual similar, it took a continued time afore their salts were differentiated. The actuality of assorted elements in their salts was doubtable from 1702, and this was accurate in 1807 if potassium and sodium were alone abandoned from altered salts by electrolysis. Potassium in attributes occurs alone in ionic salts. As such, it is begin attenuated in seawater (which is 0.04% potassium by weight), and is allotment of abounding minerals.
Most automated actinic applications of potassium apply the almost top solubility in baptize of potassium compounds, such as potassium soaps. Potassium metal has alone a few appropriate applications, getting replaced in a lot of actinic reactions with sodium metal.
Applications
Fertilizer
Potassium ions are an essential component of plant nutrition and are found in most soil types. They are used as a fertilizer in agriculture, horticulture, and hydroponic culture in the form of chloride (KCl), sulfate (K2SO4), or nitrate (KNO3). Agricultural fertilizers consume 95% of global potassium chemical production, and about 90% of this potassium is supplied as KCl. The potassium content of most plants range from 0.5% to 2% of the harvested weight of crops, conventionally expressed as amount of K2O. Modern high-yield agriculture depends upon fertilizers to replace the potassium lost at harvest. Most agricultural fertilizers contain potassium chloride, while potassium sulfate is used for chloride-sensitive crops or crops needing higher sulfur content. The sulfate is produced mostly by decomposition of the complex minerals kainite (MgSO4·KCl·3H2O) and langbeinite (MgSO4·K2SO4). Only a very few fertilizers contain potassium nitrate.In 2005, about 93% of world potassium production was consumed by the fertilizer industry.
Food
The potassium cation is a nutrient necessary for human life and health. Potassium chloride is used as a substitute for table salt by those seeking to reduce sodium intake so as to control hypertension. The USDA lists tomato paste, orange juice, beet greens, white beans, potatoes, bananas and many other good dietary sources of potassium, ranked in descending order according to potassium content.
Potassium sodium tartrate (KNaC4H4O6, Rochelle salt) is the main constituent of baking powder; it is also used in the silvering of mirrors. Potassium bromate (KBrO3) is a strong oxidizer (E924), used to improve dough strength and rise height. Potassium bisulfite (KHSO3) is used as a food preservative, for example in wine and beer-making (but not in meats). It is also used to bleach textiles and straw, and in the tanning of leathers.
Industrial
Major potassium chemicals are potassium hydroxide, potassium carbonate, potassium sulfate, and potassium chloride. Megatons of these compounds are produced annually.
Potassium hydroxide KOH is a strong base, which is used in industry to neutralize strong and weak acids, to control pH and to manufacture potassium salts. It is also used to saponify fats and oils, in industrial cleaners, and in hydrolysis reactions, for example of esters.
Potassium nitrate (KNO3) or saltpeter is obtained from natural sources such as guano and evaporites or manufactured via the Haber process; it is the oxidant in gunpowder (black powder) and an important agricultural fertilizer. Potassium cyanide (KCN) is used industrially to dissolve copper and precious metals, in particular silver and gold, by forming complexes. Its applications include gold mining, electroplating, and electroforming of these metals; it is also used in organic synthesis to make nitriles. Potassium carbonate (K2CO3 or potash) is used in the manufacture of glass, soap, color TV tubes, fluorescent lamps, textile dyes and pigments. Potassium permanganate (KMnO4) is an oxidizing, bleaching and purification substance and is used for production of saccharin. Potassium chlorite (KClO3) is added to matches and explosives. Potassium bromide (KBr) was formerly used as a sedative and in photography.
Potassium chromate (K2CrO4) is used in inks, dyes, stains (bright yellowish-red color); in explosives and fireworks; in the tanning of leather, in fly paper and safety matches, but all these uses are due to the properties of chromate ion containment rather than potassium ions.
Niche uses
Potassium compounds are so pervasive that thousands of small uses are in place. The superoxide KO2 is an orange solid that acts as a portable source of oxygen and a carbon dioxide absorber. It is widely used in respiration systems in mines, submarines and spacecraft as it takes less volume than the gaseous oxygen.
Potassium cobaltinitrite K3[Co(NO2)6] is used as artist's pigment under the name of Aureolin or Cobalt yellow.
Laboratory uses
An alloy of sodium and potassium, NaK is a liquid used as a heat-transfer medium and a desiccant for producing dry and air-free solvents. It can also be used in reactive distillation. The ternary alloy of 12% Na, 47% K and 41% Cs has the lowest melting point of −78 °C of any metallic compound.
Metallic potassium is used in several types of magnetometers.
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What is Tin(II) iodide?

 

Tin(II) iodide
CAS:10294-70-9
Molecular formula: SnI2
Molecular Weight: 372.519 g/mol
Appearance: red to red-orange solid
Tin(II) iodide, aswell accepted as stannous iodide, is an ionic tin alkali of iodine with the blueprint SnI2. It has a blueprint weight of 372.519 g/mol. It is a red to red-orange solid. Its melting point is 320 °C, and its baking point is 714 °C.
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Where to get Bismuth(III) iodide?

Bismuth(III) iodide is the asleep admixture with the blueprint BiI3. This gray-black solid is the artefact of the acknowledgment of bismuth(III) and iodide, which already was of absorption in qualitative asleep analysis.
Bismuth(III) iodide adopts a characteristic clear structure, with iodide centres application a hexagonally closest-packed lattice, and bismuth centres application either one-third or two-thirds of the octahedral holes (alternating by layer).
Bismuth(III) iodide forms aloft heating an affectionate admixture of iodine and bismuth powder:2Bi + 3I2 → 2BiI3
BiI3 can aswell be fabricated by the acknowledgment of bismuth oxide with aqueous hydroiodic acid:
Bi2O3(s) + 6HI(aq) → 2BiI3(s) + 3H2O(l)
Since bismuth(III) iodide is baffling in water, an aqueous band-aid can be activated for the attendance of Bi3+ ions by abacus a antecedent of iodide such as potassium iodide. A atramentous accelerate of bismuth(III) iodide indicates a absolute test.
Bismuth(III) iodide forms iodobismuth(III) anions if advised with halide donors:2 NaI + BiI3 → Na2[BiI5]
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Properties of Ruthenium chloride

Ruthenium chloride is the actinic admixture with the adapt RuCl3. "Ruthenium(III) chloride" added frequently refers to the hydrate RuCl3·xH2O. Both the anhydrous and hydrated brand are aphotic amber or atramentous solids. The hydrate, with a arbitrary admeasurement of admit of crystallization, about approximating to a trihydrate, is a frequently acclimated starting complete in ruthenium chemistry
Properties of Ruthenium chloride
The anhydrous forms of Ruthenium chloride are able characterized but rarely used. Credible complete is usually able by heating aerial ruthenium metal to 700 °C below a 4:1 admixture of chlorine and carbon monoxide: the achievement is agitated by the gas allure and crystallises aloft cooling. Ruthenium chloride exists is two credible modifications. The atramentous α-form adopts the CrCl3-type analysis with connected Ru-Ru contacts of 346 pm. The aphotic amber metastable β-form crystallizes in a hexagonal cell; this analysis consists of complete chains of face-sharing octahedra with Ru-Ru contacts of 283 pm. The β-form is irreversibly acclimatized to the α-form at 450–600 °C.
Ruthenium chloride vapour decomposes into the elements at top temperatures ; the enthalpy change at 750 °C (1020 K), ΔdissH1020 has been estimated as +240 kJ/mol.
RuCl3(H2O)x reacts with carbon monoxide below mild conditions. In contrast, determined chlorides do not accede with CO. CO reduces the red-brown trichloride to bald Ru(II) species. Specifically, acceptance of an booze band-aid of RuCl3(H2O)x to 1 atm of CO gives, depending on the specific conditions, [Ru2Cl4(CO)4], [Ru2Cl4(CO)4]2-, and [RuCl3(CO)3]-. Addition of ligands (L) to such solutions gives Ru-Cl-CO-L compounds (L = PR3). Reduction of these carbonylated solutions with Zn affords the orange triangular arrangement [Ru3(CO)12].
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Where to get MPDZ (7th)?

MPDZ (MUPP-1) is a large protein of 2042 amino acids that contains 13 individual PDZ domains. These domains bind to the C-terminal 4-5 residues of the target protein, localising the proteins to defined regions. The large number of PDZ domains in MPDZ allows the protein to form many connections with several different proteins thus helping to form the large protein scaffold assemblies found at tight junctions.
One of the identified binding partners of the 7th PDZ domain of MPDZ is the adenovirus E4-ORF1 that codes for an UTPase. This virus is known to play a role in tumor formation with the E4-ORF1 protein being identified as oncogenic. It is the specific interaction of the E4-ORF1 with MPDZ that causes cell proliferation as disruption of the MPDZ binding site prevents cell transformation. Hence, the 7th domain of MPDZ is targeted by the adenovirus E4-ORF1 whose function is important in controlling cellular proliferation.
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