Plumbous chloride

II) chloride plumbous chloride lead(2+) salt lead chromate (VI) phoenicochroite and others lead(2+) lead borofluoride lead boron fluoride lead tetrafluoroborate iodide plumbous iodide... 

Write the chemical formulas for (a) cupric sulfide ib) stannous fluoride (c) plumbous chloride id) ferric iodide (e) auric nitrate if ) mercuric sulfide. 

SYNS LEAD 2+) CHLORIDE LEAD(II) CHLORIDE LEAD DICHLORIDE PLUMBOUS CHLORIDE... 

Lead was originally known by its Latin name of plumbum, from which its modern chemical symbol (Pb) is derived. The Latin name is still preserved also in the common names for lead compounds, as in plumbic and plumbous chlorides. 

No one is quite sure how lead got its name. The word has been traced to manuscripts that date to before the 12th century. Romans called the metal plumbum. It is from this name that the element s chemical symbol comes Pb. Compounds of lead are sometimes called by this old name, such as plumbous chloride. 

PLUMBOUS CHLORIDE (7758-95-4) Cl2Pb Noncombustible solid. A reducing agent. Reacts, possibly violently, with strong oxidizers. Contact with acids or acid fumes produces highly toxic chloride fumes. Incompatible with calcium (mixture is explosive in presence of heat). Forms heat-or shock-sensitive explosive mixtures with ammonium nitrate. Attacks metals in the presence of moisture and may cause pitting and stress corrosion in austenitic stainless steels. 

CCRIS 7665 EINECS 231-845-5 HSDB 6309 Lead chloride Lead (II) chloride Lead chloride (PbCl2) Lead dichloride Lead 2+) chloride Lecio Plumbous chloride. Used in pigments, solders and flux. White crystalline powder d 5.85 mp = 501° bp = 950° soluble in H2O, NH4CI, NH4NO3 MLD (guinea pig orl) = 1.5-2.0 g/kg. Mechema Chemicals Ltd. 

Both fin and lead from Group IV can form valency two and four compounds. Two of the four outer electrons can behave as inert when the atoms are bivalent. Bivalent tin (stannous) derivatives are covalent whereas the nitrate and sulphate of bivalent lead (plumbous) are ionic. Some tetavalent compounds such as the hydrides and chloride are unstable, e.g. ... 

It has likewise been shown by Morozov [30] that it is possible to coagulate nitrocellulose under the influence of boric acid, in the presence of the following metal oxides Mn, Fe, Ni, Cu, and Zn. This author noticed that the nitrocotton gel formed owing to the influence of the oxides redissolved in the course of time, probably as a result of a change in chemical composition. On the other hand, the precipitate obtained by treating nitrocellulose with plumbous oxide or aluminium oxide is insoluble. Papkov and Khveleva [31] have established that a similar coagulation takes place under the influence of such salts as zinc sulphate, magnesium chloride and aluminium chloride. 

The iron in over-the-counter iron supplements frequently is ferrous sulfate, whereas iron in the ferric state, ferric chloride, was an old (not very effective) poison ivy remedy. Stannous fluoride was an ingredient in toothpaste until it was replaced with sodium fluoride. The terms plumbous and plumbic for lead have historic roots in the word plumber, originally used to refer to someone who works with lead pipes. 

Decomposes when heated above melting point, 536°F/280°C, producing toxic fumes of arsenic, lead. Lead arsenates may be subject to redox reactions. Both arsenic and lead are known human carcinogens. PLUMBOUS ACETATE (6080-56-4) Pb(CjH302)2 3H,0 Contact with acids forms acetic acid. Incompatible with oxidizers, bases, acetic acid alkalis, alkylene oxides, ammonia, amines, bromates, carbonates, citrates, chlorides, chloral hydrate cresols, epichlorohydrin, hydrozoic acid, isocyanates, methyl isocyanoacetate, phenols, phosphates, salicylic acid sodium salicylate, sodium peroxyborate, potassium bromate resorcinol, salicylic acid, strong oxidizers, sulfates, sulfites, tannin, tartrates, tinctures trinitrobenzoic acid, urea nitrate. On small fires, use dry chemical, Halon, or CO2 extinguishers. 

PLUMBOUS OXIDE (1317-36-8) PbO An oxidizer. Explosive reaction with 90% peroxyformic acid, mbidium acetylide. Reacts violently with strong oxidizers, aluminum carbide boron, chlorine, fluorine, dichloromethylsilane, calcium sulfide, hydrogen peroxide, hydrogen trisulfide (ignition), hydroxylamine (ignition), lithium carbide, metal acetylides, metal powders (e.g., aluminum, molybdenum, sodium, zirconium, etc.), perchloric acid, red phosphorus, selenium oxychloride, sodium. Incompatible with barium sulfide, chemically active metals silicon, sulfuryl chloride. 

PLUMBOUS ARSENATE (7784-40-9) Decomposes on contact with acids or acid fumes, emitting arsenic fumes. Contact with strong oxidizers may cause fire and explosions. Violent reaction with sodium acetylide. Incompatible with mercurous chloride. May form impact-sensitive explosive materials with ethanediamine, V,V -dinitro-, pyrogallic acid. Aqueous solutions decompose on contact with active metals, emitting fumes of arsenic. 

The most common coating inhibitors are zinc chromate and plumbous orthoplumbate (red lead), which passivate steel by providing chromate and plumbate ions, respectively, as well as the zinc and lead cathodic inhibitors. These inhibitors are not effective against attack by seawater or brines because the high chloride concentration prevents passivation of steel. 

Other divalent plumbous compounds are used in more specialized applications lead II nitrate, Pb(N03)2, and lead II chloride, PbCh, are used as oxidizing agents (fluxes) in plumbing, soldering and tinning of metals. Lead II acetate, (CH3COO)2Pb, and basic lead II acetate, (CH3COO)2Pb.Pb(OH)2 are both used in the modern production of white lead. 

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