Search results
Results from the WOW.Com Content Network
PB-1 is a high molecular weight, linear, isotactic, and semi-crystalline polymer. PB-1 combines typical characteristics of conventional polyolefins with certain properties of technical polymers. PB-1, when applied as a pure or reinforced resin, can replace materials like metal, rubber
As verified by X-ray crystallography, the Pb(II) centers are seven-coordinate, being surrounded by multiple carbonate ligands. The carbonate centers are bonded bidentate to a single Pb and bridge to five other Pb sites. [4] Pb site in PbCO 3, highlighting seven-coordination and the presence of one bidentate carbonate ligand for each Pb center.
Lead(IV) sulfide is a chemical compound with the formula Pb S 2. This material is generated by the reaction of the more common lead(II) sulfide, PbS, with sulfur at >600 °C and at high pressures. PbS 2, like the related tin(IV) sulfide SnS 2, crystallises in the cadmium iodide motif, which indicates that Pb should be assigned the formal ...
In this structure, Pb 2+ is surrounded by nine Br − ions in a distorted tricapped trigonal prismatic geometry. Seven of the Pb-Br distances are shorter, in the range 2.9-3.3 Å, while two of them are longer at 3.9 Å. The coordination is therefore sometimes described as (7+2). [6] [3]
Pb 2+ + H 2 S → PbS↓ + 2 H + This reaction is used in qualitative inorganic analysis. The presence of hydrogen sulfide or sulfide ions may be tested using "lead acetate paper." Like the related materials PbSe and PbTe, PbS is a semiconductor. [9] In fact, lead sulfide was one of the earliest materials to be used as a semiconductor. [10]
Make a tasty evening meal with these easy pasta recipes, like creamed spinach pasta or penne with ground turkey, all requiring less than 30 minutes of active time.
To celebrate National Peanut Butter & Jelly Day on April 2, Welch's PB&J Snacks released a survey about Americans' preferences on their peanut butter & jelly sandwich. We've got the compelling ...
Lead(II) phosphate is an ionic compound with chemical formula Pb 3 (P O 4) 2.Lead(II) phosphate is a long-lived electronically neutral reagent chemical. [2] Despite limited tests on humans, it has been identified as a carcinogen based on tests on animals conducted by the EPA. [3]