# Lead dichloride

**Formula:**Cl_{2}Pb**Molecular weight:**278.1**IUPAC Standard InChI:**- InChI=1S/2ClH.Pb/h2*1H;/q;;+2/p-2
- Download the identifier in a file.

**IUPAC Standard InChIKey:**HWSZZLVAJGOAAY-UHFFFAOYSA-L**CAS Registry Number:**7758-95-4**Chemical structure:**

This structure is also available as a 2d Mol file or as a computed 3d SD file

The 3d structure may be viewed using Java or Javascript.-
**Permanent link**for this species. Use this link for bookmarking this species for future reference. **Information on this page:****Other data available:****Data at other public NIST sites:****Options:**

## Gas phase thermochemistry data

**Go To:** Top, Condensed phase thermochemistry data, Phase change data, Vibrational and/or electronic energy levels, References, Notes

**
Data compilation copyright
by the U.S. Secretary of Commerce on behalf of the U.S.A.
All rights reserved.
**

Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|

_{f}H°_{gas} | -41.599 | kcal/mol | Review | Chase, 1998 | Data last reviewed in June, 1973 |

Quantity | Value | Units | Method | Reference | Comment |

S°_{gas,1 bar} | 75.810 | cal/mol*K | Review | Chase, 1998 | Data last reviewed in June, 1973 |

### Gas Phase Heat Capacity (Shomate Equation)

C_{p}° = A + B*t + C*t^{2} + D*t^{3} +
E/t^{2}

H° − H°_{298.15}= A*t + B*t^{2}/2 +
C*t^{3}/3 + D*t^{4}/4 − E/t + F − H

S° = A*ln(t) + B*t + C*t^{2}/2 + D*t^{3}/3 −
E/(2*t^{2}) + G

C_{p} = heat capacity (cal/mol*K)

H° = standard enthalpy (kcal/mol)

S° = standard entropy (cal/mol*K)

t = temperature (K) / 1000.

View plot Requires a JavaScript / HTML 5 canvas capable browser.

Temperature (K) | 2000. - 6000. |
---|---|

A | 13.87950 |

B | 0.054556 |

C | -0.041676 |

D | 0.009813 |

E | -0.063313 |

F | -45.95280 |

G | 92.23659 |

H | -41.59990 |

Reference | Chase, 1998 |

Comment | Data last reviewed in June, 1973 |

## Condensed phase thermochemistry data

**Go To:** Top, Gas phase thermochemistry data, Phase change data, Vibrational and/or electronic energy levels, References, Notes

**
Data compilation copyright
by the U.S. Secretary of Commerce on behalf of the U.S.A.
All rights reserved.
**

Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|

_{f}H°_{liquid} | -82.278 | kcal/mol | Review | Chase, 1998 | Data last reviewed in June, 1973 |

Quantity | Value | Units | Method | Reference | Comment |

S°_{liquid,1 bar} | 36.656 | cal/mol*K | Review | Chase, 1998 | Data last reviewed in June, 1973 |

Quantity | Value | Units | Method | Reference | Comment |

_{f}H°_{solid} | -85.901 | kcal/mol | Review | Chase, 1998 | Data last reviewed in June, 1973 |

Quantity | Value | Units | Method | Reference | Comment |

S°_{solid} | 32.500 | cal/mol*K | Review | Chase, 1998 | Data last reviewed in June, 1973 |

### Liquid Phase Heat Capacity (Shomate Equation)

C_{p}° = A + B*t + C*t^{2} + D*t^{3} +
E/t^{2}

H° − H°_{298.15}= A*t + B*t^{2}/2 +
C*t^{3}/3 + D*t^{4}/4 − E/t + F − H

S° = A*ln(t) + B*t + C*t^{2}/2 + D*t^{3}/3 −
E/(2*t^{2}) + G

C_{p} = heat capacity (cal/mol*K)

H° = standard enthalpy (kcal/mol)

S° = standard entropy (cal/mol*K)

t = temperature (K) / 1000.

View plot Requires a JavaScript / HTML 5 canvas capable browser.

Temperature (K) | 774. - 2000. |
---|---|

A | 26.65010 |

B | 8.730839×10^{-9} |

C | -5.862042×10^{-9} |

D | 1.308310×10^{-9} |

E | 3.755510×10^{-10} |

F | -91.74080 |

G | 64.99699 |

H | -82.27811 |

Reference | Chase, 1998 |

Comment | Data last reviewed in June, 1973 |

### Solid Phase Heat Capacity (Shomate Equation)

C_{p}° = A + B*t + C*t^{2} + D*t^{3} +
E/t^{2}

H° − H°_{298.15}= A*t + B*t^{2}/2 +
C*t^{3}/3 + D*t^{4}/4 − E/t + F − H

S° = A*ln(t) + B*t + C*t^{2}/2 + D*t^{3}/3 −
E/(2*t^{2}) + G

C_{p} = heat capacity (cal/mol*K)

H° = standard enthalpy (kcal/mol)

S° = standard entropy (cal/mol*K)

t = temperature (K) / 1000.

View plot Requires a JavaScript / HTML 5 canvas capable browser.

Temperature (K) | 298. - 774. |
---|---|

A | 16.44760 |

B | 6.746011 |

C | 0.141829 |

D | -0.040056 |

E | -0.003947 |

F | -91.11819 |

G | 50.36520 |

H | -85.90019 |

Reference | Chase, 1998 |

Comment | Data last reviewed in June, 1973 |

## Phase change data

**Go To:** Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Vibrational and/or electronic energy levels, References, Notes

**
Data compilation copyright
by the U.S. Secretary of Commerce on behalf of the U.S.A.
All rights reserved.
**

### Antoine Equation Parameters

log_{10}(P) = A − (B / (T + C))

P = vapor pressure (atm)

T = temperature (K)

View plot Requires a JavaScript / HTML 5 canvas capable browser.

Temperature (K) | A | B | C | Reference | Comment |
---|---|---|---|---|---|

931. - 1154. | 4.41496 | 4564.909 | -194.347 | Barchuk and Dubovoi, 1973 | Coefficents calculated by NIST from author's data. |

820. - 1227. | 4.63161 | 4896.563 | -168.921 | Stull, 1947 | Coefficents calculated by NIST from author's data. |

## Vibrational and/or electronic energy levels

**Go To:** Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, References, Notes

**Data compiled by:** Takehiko Shimanouchi

### Symmetry: C_{2} Symmetry Number = 2

Sym. | No | Approximate | Selected Freq. | Infrared | Raman | Comments | ||||
---|---|---|---|---|---|---|---|---|---|---|

Species | type of mode | Value | Rating | Value | Phase | Value | Phase | |||

a_{1} |
1 | Sym str | 314 | C | 322 | solid solid | 314 p | gas | ||

a_{1} |
2 | Bend | 99 | C | 99 p | gas | ||||

b_{1} |
3 | Anti str | 299 | D | 299 | solid solid | 300 dp | solid solid | ||

Source: Shimanouchi, 1972

### Notes

p | Polarized |

dp | Depolarized |

C | 3~6 cm^{-1} uncertainty |

D | 6~15 cm^{-1} uncertainty |

## References

**Go To:** Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Vibrational and/or electronic energy levels, Notes

**Chase, 1998**

Chase, M.W., Jr.,
*NIST-JANAF Themochemical Tables, Fourth Edition*,
**J. Phys. Chem. Ref. Data, Monograph 9**, 1998, 1-1951. [all data]

**Barchuk and Dubovoi, 1973**

Barchuk, V.T.; Dubovoi, P.G.,
*Measurement of a Saturated Vapor Pressure Over Highly Volitile Salt Melts*,
**Ukr. Khim. Zh. (Russ. Ed.)**, 1973, 39, 8, 838-840. [all data]

**Stull, 1947**

Stull, Daniel R.,
*Vapor Pressure of Pure Substances. Organic and Inorganic Compounds*,
**Ind. Eng. Chem.**, 1947, 39, 4, 517-540, https://doi.org/10.1021/ie50448a022
. [all data]

**Shimanouchi, 1972**

Shimanouchi, T.,
*Tables of Molecular Vibrational Frequencies Consolidated Volume II*,
**J. Phys. Chem. Ref. Data**, 1972, 6, 3, 993-1102. [all data]

## Notes

**Go To:** Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Vibrational and/or electronic energy levels, References

- Symbols used in this document:

S° _{gas,1 bar}Entropy of gas at standard conditions (1 bar) S° _{liquid,1 bar}Entropy of liquid at standard conditions (1 bar) S° _{solid}Entropy of solid at standard conditions _{f}H°_{gas}Enthalpy of formation of gas at standard conditions _{f}H°_{liquid}Enthalpy of formation of liquid at standard conditions _{f}H°_{solid}Enthalpy of formation of solid at standard conditions - Data from NIST Standard Reference Database 69:
*NIST Chemistry WebBook* - The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
- Customer support for NIST Standard Reference Data products.