**NOTE:** This list will expand as new HELP files are created.

Comments and suggested topics are welcome. Contact Dr. Rob Chirico: <Chirico@boulder.nist.gov>

**NOTE:** The GDC software includes textual HELP documentation that will suffice for many users of the program. The HELP files listed here include numerous screen captures from the program and provide more detail.

PDF file name | Topic(s) addressed |
---|---|

DOWNLOADandINSTALL.pdf | How to Download & Install the GDC software |

BIBLIOGRAPHICinfo.pdf | Capture of title, authors, manuscript number, keywords, etc. |

COMPOUNDselection.pdf | Selecting a COMPOUND from the GDC integrated database (most common operation) |

COMPOUNDaddition.pdf | Adding a COMPOUND that is not in the integrated database (a less common operation) |

SAMPLEentry.pdf | Entering SAMPLE specifications for a given COMPOUND (SAMPLE source, purity, etc.) |

MIXTUREspecification.pdf | Specifying a MIXTURE from previously entered COMPOUNDS |

PROPERTYselection-1component.pdf | How to select a PROPERTY for a given SAMPLE |

PROPERTYselection-mixture.pdf | How to select a PROPERTY for a given MIXTURE |

UNCERTAINTYdescriptions.pdf | How to capture UNCERTAINTIES and PRECISIONS (with definitions) |

ADVANCED-OPERATION.pdf | Procedures for capture of numerous similar data sets |

PDF file name | Topic(s) addressed |
---|---|

BOILING-POINT.pdf | BOILING TEMPERATURE at 1 atmosphere (101.325 kPa) |

CRITICAL-TEMPERATURE.pdf | CRITICAL TEMPERATURE (capture of other critical properties is analogous) |

DENSITY_vs_T_at_const-p.pdf | DENSITY as a function of temperature at constant pressure |

DENSITY_vs_TandP.pdf | DENSITY as a function of temperature and pressure |

DENSITY-at-1-T-and-1-atm.pdf | DENSITY at a single temperature and p = 101.325 kPa |

ENTHALPY-INCREMENTS_vs_TandP.pdf | ENTHALPY INCREMENTS as a function of temperature and pressure |

HEAT-CAPACITIES-Csat_vs_T.pdf | HEAT CAPACITIES at saturation pressure as a function of temperature |

HEAT-of-FUSION-or-PHASE-TRANSITION.pdf | ENTHALPY OF FUSION or ENTHALPY OF PHASE TRANSITION |

HEAT-of-VAPORIZATION-1-point.pdf | ENTHALPY OF VAPORIZATION or sublimation |

MELTING-POINT.pdf | MELTING TEMPERATURE at p = 101.325 kPa |

REFRACTIVE-INDEX-1-point.pdf | REFRACTIVE INDEX at one temperature and p = 101.325 kPa |

SURFACE-TENSION_vs_T_at_const-p.pdf | SURFACE TENSION as function of temperature at constant pressure |

ThermalExpansivity_vs_p_at_const-T.pdf | THERMAL EXPANSIVITY as function of pressure at constant temperature |

THERMODYNAMIC-FUNCTIONS-from-Csat.pdf | ENTROPY, ENTHALPY increments, and Csat at smoothed temperatures |

TRIPLE-POINT-or-PHASE-TRANSITION-T.pdf | TRIPLE POINT TEMPERATURE: Liquid-Crystal or Crystal-Crystal |

VAPOR-PRESSURE_vs_T.pdf | VAPOR PRESSURE or sublimation pressure as function of temperature |

VISCOSITIES_vs_T_at_const-p.pdf | VISCOSITIES as a function of temperature at constant pressure |

PDF file name | Topic(s) addressed |
---|---|

ACTIVITY-COEFF-Inf-Dilution_vs_T-2-comp.pdf | ACTIVITY COEFFICIENT at INFINITE DILUTION as function of temperature |

BINARY-DIFFUSION-COEFF-Inf-Dilution_vs_TandP.pdf | BINARY DIFFUSION COEFF at INFINITE DILUTION as function of T and p |

CRITICAL-TEMPERATURES_vs_x-2-components.pdf | CRITICAL TEMPERATURES as a function of composition |

DENSITY_vs_T_p_x-2-components.pdf | DENSITIES as a function of temperature, pressure, and composition |

DENSITY_vs_x-TandP-const-2-components.pdf | DENSITIES as a function of composition with T and p constant |

DENSITY-sat_soln_vs_T_at_const-p_3-components.pdf | DENSITIES of saturated solution (e.g., crystal in 2-component solvent) |

HEAT-CAPACITIES-Cp_vs_T_and_x-2-components.pdf | HEAT CAPACITIES Cp as function of temperature and composition |

Hex-XS-ENTHALPY_1-2-3_const-TandP.pdf | EXCESS ENTHALPY for a mixture of 3 separate components |

Hex-XS-ENTHALPY_1_2-3const-TandP.pdf | EXCESS ENTHALPY for component 1 added to the binary mixture (2+3) |

Hex-XS-ENTHALPY_vs_x-TandP-const-2-components.pdf | EXCESS ENTHALPY (i.e., enthalpy of mixing) for a 2-component mixture |

INTERFACIAL-TENSION-const-TandP-3-components.pdf | INTERFACIAL TENSION at constant temperature and pressure |

INTERFACIAL-TENSION_vs_T_and_x-p-const-2-components.pdf | INTERFACIAL TENSION at pressure for 2 components |

SPEED-of-SOUND_vs_T_and_x-p-const-2-components.pdf | SPEED of SOUND as function of T and composition at constant p |

SURFACE-TENSION_vs_T_and_x-p-const-2-components.pdf | SURFACE TENSION as function of T and composition with p constant |

Vex-XS-VOLUME_vs_T_and_x-p-const-2-components.pdf | EXCESS VOLUME as a function T and composition at constant p |

VISCOSITIES_vs_T_and_x-p-const-2-components.pdf | VISCOSITY as function of temperature and composition at constant p |

PDF file name | Topic(s) addressed |
---|---|

AZEOTROPIC-composition.pdf | AZEOTROPIC COMPOSITION (a derived property) |

AZEOTROPIC-pressure.pdf | AZEOTROPIC PRESSURE (a derived property) |

EUTECTIC-COMPOSITION-2-components.pdf | EUTECTIC COMPOSITION for a 2-component mixture at p = 101.325 kPa |

EUTECTIC-TEMPERATURE-2-components.pdf | EUTECTIC TEMPERATURE for a 2-component mixture at p = 101.325 kPa |

HENRY'S-LAW-2-components.pdf | Derived HENRY'S LAW constants |

LLE-BINODAL-CURVE-3-components.pdf | BINODAL CURVE compositions at constant T and p |

LLE-CLOUD-POINT-2-components.pdf | CLOUD POINT composition as function of T at constant pressure |

LLE-SOLUBILITY-conjugate-2-components.pdf | MUTUAL SOLUBILITY as function of T at constant p |

LLE-TEMPERATURE-2-components.pdf | LIQUID-LIQUID EQ temperature as function of composition at constant p |

LLE-TIE-LINE-DATA-3-components.pdf | LIQUID-LIQUID EQ TIE-LINE data as f(T) with p = constant |

LLV-Equilibrium-VAPOR-PRESSURE.pdf | LIQUID-LIQUID-VAPOR equilibrium pressures as f(T) |

SLE-TEMPERATURE-2-components.pdf | SOLID-LIQUID EQUILIBRIUM temperatures as f(x) with constant p |

SLLV-QuadruplePoint.pdf | SOLI-LIQUID-LIQUID-VAPOR quadruple point temperature |

SOLUBILITY-LL_or_SL-2-components.pdf | SOLUBILITY of a liquid or crystal in a liquid as f(T) and p constant |

SOLUBILITY-Crystal-in-binary-solvent.pdf | SOLUBILITY of a crystal in a binary solvent at constant T and p |

SOLUBILITY-in-SC-CO2.pdf | SOLUBILITY of a crystal in supercritical CO2 as f(T,p) |

SOLUBILITY-Gas-in-Liquid_vs_TandP-2-components.pdf | SOLUBILITY of a gas in a liquid as f(T,p) |

Upper-Consolute-COMPOSITION-2-components.pdf | UPPER CONSOLUTE COMPOSITION at p = 101.325 kPa |

Upper-Consolute-TEMPERATURE-2-components.pdf | UPPER CONSOLUTE TEMPERATURE at p = 101.325 kPa |

VLE-DEW_POINT_p_vs_T_and_x-2-components.pdf | DEW POINT PRESSURES at function of T and composition |

VLE_pTx-BUBBLE-POINT-temp_at-const-p-binary.pdf | BUBBLE POINT temperatures as function of composition at p = const |

VLE_pTx-VAPOR-PRESSURES_T-const-2-components.pdf | VAPOR PRESSURES as function of composition at constant T |

VLE_pTxy-DATA_p-const-2-components.pdf | Pressure-Temperature-Composition-(liquid and vapor) VLE data |

VLE_Txy-DATA_p-unspecified-3-components.pdf | Temperature-Composition-(liquid and vapor) VLE data with p unspecified |

PDF file name | Topic(s) addressed |
---|---|

REACTION-Energy-of-Combustion.pdf | Internal ENERGY OF COMBUSTION (mass or molar basis) |

REACTION-Enthalpy-of-Formation.pdf | ENTHALPY OF FORMATION of a compound from its constituent elements |

PDF file name | Topic(s) addressed |
---|---|

Enzyme-Catalyzed-Reactions.pdf | Apparent equilibrium constant, enthalpy as f(T, pH, pMg, cofactor, etc.) |

Properties-via-Titration-Calorimetry.pdf | Binding constants for reactions, reaction enthalpies |

Solubilities-in-Complex-Media.pdf | Solubilities of biomaterials as f(T, pH, solvent & buffer composition, etc.) |

Properties-from-DSC.pdf | Transformation properties for a specific substance in a complex solution (e.g. denaturization) |