Lead , 99.95%metalsbasis , 7439-92-1
Synonym(s):
Lead;Lead element;Lead Flake
CAS NO.：7439-92-1
Empirical Formula: Pb
Molecular Weight: 207.2
MDL number: MFCD00134050
EINECS: 231-100-4
| Pack Size | Price | Stock | Quantity |
| 25G | RMB59.20 | In Stock |
|
| 100G | RMB180.80 | In Stock |
|
| 500G | RMB629.60 | In Stock |
|
| 1KG | RMB1504.00 | In Stock |
|
| 2.5kg | RMB2223.20 | In Stock |
|
| others | Enquire |
PRODUCT Properties
| Melting point: | 327.4 °C (lit.) |
| Boiling point: | 1740 °C (lit.) |
| Density | 1.00 g/mL at 20 °C |
| refractive index | 2.881 (632.8 nm) |
| storage temp. | Store at +5°C to +30°C. |
| solubility | H2O: soluble |
| form | wire |
| color | Olive-green or red to brown |
| Specific Gravity | 11.288 |
| Odor | Odorless gas |
| Resistivity | 20.65 μΩ-cm |
| Water Solubility | reacts with hot conc HNO3, boiling conc HCl, H2SO4 [MER06] |
| Merck | 13,5414 |
| Exposure limits | TLV-TWA 0.15 mg/m3 as Pb (ACGIH and
MSHA), 0.05 mg (Pb)/m3 (OSHA); 10-h
TWA 0.1 mg(inorganic lead)/m3 (NIOSH). |
| Stability: | Stable. Incompatible with strong oxidizing agents, potassium, sodium. |
Description and Uses
Lead was one of the earliest metals used by humans, with possible use extending as far back as the seventh millennium BC, and reaching its preindustrial peak usage during the reign of the Roman Empire, around the beginning of the Common Era.
Lead has been known to humankind sinceancient times. It is a major component ofmany alloys, such as bronze and solder. Itis used for tank linings, piping, and buildingconstruction; in the manufacture of pigmentsfor paints, tetraethyllead, and many organicand inorganic compounds; in storage batteries;and in ceramics. Lead levels in manysoils have been range from 5 to 25 mg/kgand in groundwaters from 1 to 50 μg/L.These concentrations may vary significantly.
Safety
| Symbol(GHS) |  GHS08 |
| Signal word | Danger |
| Hazard statements | H360FD-H362-H372 |
| Precautionary statements | P202-P260-P263-P264-P270-P308+P313 |
| Hazard Codes | T,Xi,Xn,N |
| Risk Statements | 61-33-40-48/20-62-36/38-20/22-51/53-50/53-48/20/22-52/53-34-23/24/25 |
| Safety Statements | 53-45-61-36/37-36-26-60-36/37/39 |
| RIDADR | UN 3082 9/PG 3 |
| OEB | D |
| OEL | TWA: (8-hour) 0.050 mg/m3 [*Note: The REL also applies to other lead compounds (as Pb) -- see Appendix C.] |
| WGK Germany | 3 |
| RTECS | OF7525000 |
| TSCA | Yes |
| HazardClass | 8 |
| PackingGroup | III |
| HS Code | 78011000 |
| Toxicity | LDLO oral (pigeon) 160 mg/kg PEL (OSHA) 0.05 mg/m3 PEL (action level) 0.03 mg/m3 TLV-TWA (ACGIH) 0.05 mg/m3 (PEL and TLV apply to lead and inorganic lead compounds) |
| IDLA | 100 mg Pb/m3 |
