CAS No.7439-92-1,Lead Suppliers,MSDS download

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Basic Information

Molecular Structure:
CAS No.:	7439-92-1
Name:	Lead
Article Data:	732

Formula:	Pb
Molecular Weight:	211.232
Synonyms:	Lead, inorganic;Plumbum metallicum;Lead S 2;Lead element;PS 2;PS 2 (metal);Pb-S 100;Lead Ingot;
EINECS:	231-100-4
Density:	1.00 g/mL at 20 °C
Melting Point:	327.4 °C(lit)
Boiling Point:	1740 °C(lit.)
Solubility:	reacts with hot conc HNO3, boiling conc HCl, H2SO4 [MER06]
Appearance:	grey metal granules, shot, foil, sheet or powder
Hazard Symbols:	T; Xi; Xn
Risk Codes:	61-33-40-48/20-62-36/38-20/22
Safety:	53-45-61-36/37-36-26
Transport Information:	UN 3082 9/PG 3
PSA:	0.00000
LogP:	-0.15580

Synthetic route

: lead dioxide

: 7439-92-1
lead

Conditions

Conditions	Yield
With H2 In water Electrolysis; electrolysis of PbO2 in acidic or alkaline suspension;; pptn.;;	100%
With hydrogen sulfide In neat (no solvent) passing H2S over dry or moist PbO2;; by Pb blue coloured flame of H2S;;
With aluminium In neat (no solvent) byproducts: Al2O3; explosive mixture;;

: 1,2-dimethoxyethanebis(pentadeuterocyclopentadienyl)ytterbium(II)

: lead(II) chloride

A: 7439-92-1
lead

B: chlorobis(cyclopentadienyl)ytterbium(III)-tetrahydrofuran(2:1)

Conditions

Conditions	Yield
In tetrahydrofuran N2-atmosphere; stirring Yb-complex with 0.5 equiv. of halide (room temp., 16 h); filtration, washing (THF), evapn. (vac.), drying (vac.);	A 100% B 80%

...Expand

: lead(II) sulfate

: galenite

: lead oxide

: lead(II) chloride

: 7439-92-1
lead

Conditions

Conditions	Yield
With sodium carbonate; potassium carbonate; pyrographite In melt melting of 1:1 mixt. of the two carbonates in a BeO crucible, addn. of Pb compd., addn. of wood coal, heating at 1020+/-2 K for 2 h; air cooling;	99%
With sodium carbonate; potassium carbonate In melt melting of 1:1 mixt. of the two carbonates in a BeO crucible, addn. of Pb compd., heating at 1020+/-2 K for 2 h; air cooling;	95%

...Expand

: galenite

: lead oxide

: lead(II) chloride

: 7439-92-1
lead

Conditions

Conditions	Yield
With sodium carbonate; potassium carbonate; pyrographite In melt melting of 1:1 mixt. of the two carbonates in a BeO crucible, addn. of Pb compd.,addn. of wood coal, heating at 1020+/-2 K for 2 h; air cooling;	99%
With sodium carbonate; potassium carbonate In melt melting of 1:1 mixt. of the two carbonates in a BeO crucible, addn. of Pb compd., heating at 1020+/-2 K for 2 h; air cooling;	90%

...Expand

: lead(II) sulfide

: 7439-92-1
lead

Conditions

Conditions	Yield
With hydrogen In neat (no solvent) at 440 - 600°C; complete reduction at 600 °C;;	99%
With H2 In neat (no solvent) at 440 - 600°C; complete reduction at 600 °C;;	99%
With manganese In neat (no solvent)	94%

: lead oxide

: 7439-92-1
lead

Conditions

Conditions	Yield
With sodium carbonate; potassium carbonate; pyrographite In melt melting of 1:1 mixt. of the two carbonates in a BeO crucible, addn. of Pb compd., addn. of wood coal, heating at 1020+/-2 K for 2 h; air cooling;	99%

: lead(II) chloride

: 7439-92-1
lead

Conditions

Conditions	Yield
With sodium carbonate; potassium carbonate; pyrographite In melt melting of 1:1 mixt. of the two carbonates in a BeO crucible, addn. of Pb compd., addn. of wood coal, heating at 1020+/-2 K for 2 h; air cooling;	99%
With hydrogen In neat (no solvent) byproducts: HCl;
With aluminium In water reduction;;

: 10026-04-7, 53609-55-5
tetrachlorosilane

: 1037195-18-8
Pb(C6H3(N(CH3)2)2)2

: 7439-92-1
lead

Conditions

Conditions	Yield
In diethyl ether SiCl4 added to soln. of Sn(CH(SiMe3)2)2 in Et2O;	99%

: 190316-75-7
2,4,6-tris[bis(trimethylsilyl)methyl]phenylplumbylene

: 7439-92-1
lead

Conditions

Conditions	Yield
In benzene-d6 Ar-atmosphere; heating (100°C, 42 h);	99%

: 1271-15-4
lithiumferrocene

: lead(II) chloride

A: 7439-92-1
lead

B: 102-54-5
ferrocene

Conditions

Conditions	Yield
In diethyl ether byproducts: LiCl; Ar; to a suspn. of PbCl2 added a suspn. of FcLi, stirred for 2 h; ppt. (Pb) filtered, washed (H2O), dried, analyzed; Fc not isolated, detected by NMR;	A 96% B n/a

...Expand

Raw Materials

78-00-2

546-67-8

811-54-1

Downstream Products

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History

Metallic lead beads dating back to 6400 B.C. have been found in modern-day Turkey. In the early Bronze Age, lead was used with antimony and arsenic. Lead is mentioned in the Book of Exodus (15:10). In alchemy, lead was thought to be the oldest metal and was associated with the planet Saturn. The Romans also used lead in molten form to secure iron pins that held together large limestone blocks in certain monumental buildings. Lead's symbol Pb is an abbreviation of its Latin name plumbum for soft metals; originally it was plumbum nigrum (literally, "black plumbum"), where plumbum candidum (literally, "bright plumbum") was tin. The English words "plumbing", "plumber", "plumb", and "plumb-bob" also derive from this Latin root.

Consensus Reports

IARC Cancer Review: Group 2B IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 7 , 1987,p. 230.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) ; Animal Inadequate Evidence IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 23 , 1980,p. 325.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) . Lead and its compounds are on the Community Right-To-Know List. Reported in EPA TSCA Inventory. EPA Genetic Toxicology Program.

Standards and Recommendations

OSHA PEL: TWA 0.05 mg(Pb)/m³
ACGIH TLV: TWA 0.15 mg(Pb)/m³; BEI: 50 μg(lead)/L in blood; 150 μg(lead)/g creatinine in urine
DFG MAK: 0.1 mg/m³; BAT: 70 μg(lead)/L in blood; 30 μg(lead)/L in blood of women less than 45 years old
NIOSH REL: TWA (Inorganic Lead) 0.10 mg(Pb)/m³

Analytical Methods

For occupational chemical analysis use OSHA: #ID-125G or NIOSH: Lead, 7082; Elements, 7300; Lead in Blood and Urine, 8003.

Specification

Lead, with the CAS registry number 7439-92-1 and EINECS registry number 231-100-4, is also named as Plumbum metallicum. In addition, the molecular formula is Pb and the molecular weight is 207.20. It belongs to the classes of Metals; Inorganics; Lead Micro / Nanoelectronics; Catalysis and Inorganic Chemistry; Chemical Synthesis; Electronic Chemicals; LeadMetal and Ceramic Science; Pure Elements; Industrial Raw Materials; Industrial Raw MaterialsAnalytical Standards. Lead is a bright and silvery metal with a very slight shade of blue in a dry atmosphere.

Preparation of Lead: It can be prepared by PbS and PbO. The equation is as follows: 2 PbO + PbS → 3 Pb + SO₂. Also it can be get through electrolysis method. Recrystallize lead nitroate or lead acetate for 3 times at first. Then made it into electrolyte. The electrolysis temperature is 18-20 °C and the current is 1.2 A.

Uses of Lead: It is a major constituent of the lead-acid battery used extensively as a car battery. And it can be used as a coloring element in ceramic glazes, notably in the colors red and yellow. Also it is frequently used in polyvinyl chloride (PVC) plastic, which coats electrical cords. In addition, it is used to form glazing bars for stained glass or other multi-lit windows. And it can be used in solder for electronics, although this usage is being phased out by some countries to reduce the amount of environmentally unfriendly waste. Moreover, it can be used in high voltage power cables as sheathing material to prevent water diffusion into insulation.

When you are using this chemical, please be cautious about it as the following:
It is irritating to eyes and skin and harmful by inhalation and if swallowed. It has danger of cumulative effects, and danger of serious damage to health by prolonged exposure through inhalation. In addition, it may cause harm to the unborn child. It has risk of impaired fertility possibly. Avoid exposure - obtain special instruction before use. During using it, wear suitable protective clothing and gloves. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. And in case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.). Moreover, you should avoid release to the environment. And you can refer to special instructions safety data sheet.

You can still convert the following datas into molecular structure:
(1)SMILES: [Pb]
(2)InChI: InChI=1S/Pb
(3)InChIKey: WABPQHHGFIMREM-UHFFFAOYSA-N

The toxicity data is as follows:

Organism	Test Type	Route	Reported Dose (Normalized Dose)	Effect	Source
human	TCLo	inhalation	10ug/m3 (.01mg/m3)	GASTROINTESTINAL: GASTRITIS LIVER: OTHER CHANGES	Vrachebnoe Delo. Medical Practice. Vol. (5), Pg. 107, 1981.
pigeon	LDLo	oral	160mg/kg (160mg/kg)		"Abdernalden's Handbuch der Biologischen Arbeitsmethoden." Vol. 4, Pg. 1289, 1935.
rat	LDLo	intraperitoneal	1gm/kg (1000mg/kg)		Environmental Quality and Safety, Supplement. Vol. 1, Pg. 1, 1975.
women	TDLo	oral	450mg/kg/6Y (450mg/kg)	BEHAVIORAL: MUSCLE WEAKNESS BEHAVIORAL: "HALLUCINATIONS, DISTORTED PERCEPTIONS" PERIPHERAL NERVE AND SENSATION: FLACCID PARALYSIS WITHOUT ANESTHESIA (USUALLY NEUROMUSCULAR BLOCKAGE)	JAMA, Journal of the American Medical Association. Vol. 237, Pg. 2627, 1977.