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CAS No.: | 1309-60-0 |
---|---|
Name: | Lead(IV) oxide |
Molecular Structure: | |
Formula: | PbO2 |
Molecular Weight: | 239.199 |
Synonyms: | dioxolead;Lead Dioxide; |
EINECS: | 215-174-5 |
Density: | 9.38 g/cm3 |
Melting Point: | 290 °C |
Solubility: | insoluble in water |
Appearance: | black powder |
Hazard Symbols: | O, T, N |
Risk Codes: | 61-8-20/22-33-50/53-62 |
Safety: | 53-45-60-61 |
Transport Information: | UN 1872 5.1/PG 3 |
PSA: | 34.14000 |
LogP: | -0.61840 |
2,2-bis(4-pyrrolidinophenyl)propionic acid
lead(IV) oxide
Conditions | Yield |
---|---|
With sodium hydroxide In toluene | 76% |
Conditions | Yield |
---|---|
With sodium hydroxide In benzene | 74% |
Conditions | Yield |
---|---|
With sodium hydroxide In toluene | 46.3% |
Conditions | Yield |
---|---|
With HF In pyridine; dichloromethane | 36% |
Conditions | Yield |
---|---|
With HF In pyridine; dichloromethane | 26% |
Conditions | Yield |
---|---|
With HF In pyridine; pentane | 25% |
Conditions | Yield |
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With HF In pyridine; dichloromethane | 17% |
Conditions | Yield |
---|---|
With HF In pyridine; dichloromethane; pentane | 15% |
5-Hydroxy-2-methylpyridine
lead(IV) oxide
3,3'-Dihydroxy-6,6'-dimethyl-2,2'-bipyridine
Conditions | Yield |
---|---|
In toluene | 9.3% |
Conditions | Yield |
---|---|
With HF In pyridine; dichloromethane | 9.2% |
Reported in EPA TSCA Inventory. Lead and its compounds are on the Community Right-To-Know List.
OSHA PEL: TWA 0.05 mg(Pb)/m3
ACGIH TLV: TWA 0.15 mg(Pb)/m3
NIOSH REL: (Inorganic Lead) TWA 0.10 mg(Pb)/m3
DOT Classification: 5.1; Label: Oxidizer
The Lead dioxide, with the CAS registry number 1309-60-0, is also known as Bioxyde de plomb. It belongs to the product category of Inorganics. Its EINECS registry number is 215-174-5. This chemical's molecular formula is PbO2 and molecular weight is 239.1988. Its IUPAC name is called dioxolead. This chemical is brown to black powder. Lead dioxide is a strong oxidizing agent which is used in the manufacture of matches, pyrotechnics, dyes and other chemicals. It also has several important applications in electrochemistry, in particular as a component of lead acid batteries.
Physical properties of Lead dioxide: (1)H-Bond Donor: 0; (2)H-Bond Acceptor: 2; (3)Rotatable Bond Count: 0; (4)Exact Mass: 239.966465; (5)MonoIsotopic Mass: 239.966465; (6)Topological Polar Surface Area: 34.1; (7)Heavy Atom Count: 3; (8)Formal Charge: 0; (9)Complexity: 18.3; (10)Isotope Atom Count: 0; (11)Defined Atom StereoCenter Count: 0; (12)Undefined Atom StereoCenter Count: 0; (13)Defined Bond StereoCenter Count: 0; (14)Undefined Bond StereoCenter Count: 0; (15)Covalently-Bonded Unit Count: 1.
Preparation of Lead dioxide: this chemical can be prepared by PbAC2·3H2O and AR concentrated solution of sodium carbonate. This reaction will need reagent Cl2.
Pb(CH3COO)2+2Na2CO3+Cl2=PbO2↓+2CH3COONa+2NaCl+2CO2↑
Uses of Lead dioxide: Lead dioxide is well known for being a good oxidizing agent with example reaction listed below:
2 MnSO4 + 5 PbO2 + 6 HNO3 → 2 HMnO4 + 2 PbSO4↓ + 3 Pb(NO3)2 + 2 H2O
2 Cr(OH)3 + 10 KOH + 3 PbO2↓ → 2 K2CrO4 + 3 K2PbO2 + 8 H2O
When you are using this chemical, please be cautious about it as the following:
This chemical can react exothermically with other chemicals. This chemical that at low level will cause damage to health. It may present an immediate or delayed danger to one or more components of the environment. In addition, it is harmful by inhalation and if swallowed and harmful to aquatic organisms which may cause long-term adverse effects in the aquatic environment. In case of accident or if you feel unwell seek medical advice immediately (show the label where possible). This material and its container must be disposed of as hazardous waste.
You can still convert the following datas into molecular structure:
(1)Canonical SMILES: O=[Pb]=O
(2)InChI: InChI=1S/2O.Pb
(3)InChIKey: YADSGOSSYOOKMP-UHFFFAOYSA-N
The toxicity data is as follows:
Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
---|---|---|---|---|---|
guinea pig | LD50 | intraperitoneal | 220mg/kg (220mg/kg) | Environmental Quality and Safety, Supplement. Vol. 1, Pg. 1, 1975. |