The Datum Edit Dialog is used to add or edit an individual datum listed in the Temperature and Pressure Dependent Data Dialog and the Temperature and Pressure Dependent All Data Dialog. The dialog is activated by clicking the left mouse button on a row in the data table control or selecting a row and pressing the Edit button.

The Datum Edit Dialog enables you to enter values for the temperature, pressure, datum, and supporting information.

1	Temperature Control: enables you to enter the datum's temperature.
2	Temperature Accuracy Control: enables you to enter the accuracy of the entered temperature value.
3	Units Control: enables you specify the units in which the temperature was entered.
4	Pressure Control: enables you to enter the datum's pressure.
5	Pressure Accuracy Control: enables you to enter the accuracy of the entered pressure value.
6	Units Control: enables you specify the units in which the pressure was entered.
7	Value Control: enables you to enter the datum's physical property value.
8	Value Accuracy Control: enables you to enter the accuracy of the entered physical property value.
9	Units Control: enables you specify the units in which the physical property value was entered.
10	Reference Control: the Reference control enables you to enter the identifier of the reference from which you obtained the property's datum value. You can type in a value or use the dropdown list to select a recently entered value. Entering a reference is optional but highly recommended.
11	List Button: pressing the List button displays the Reference Selection dialog. This dialog enables you to select the identifier of any reference in the current document. (See the All Entities dialog documentation for more details on selecting references.)
12	Comments Control: the Comments control enables you to enter general information to better describe the entered value. Very often comments document the date of entry, the name of the person who entered the value, or assumptions about the entered value.
13	Date, Phrase, Set Buttons: these buttons provide standard operations to help you enter comments. Pressing the Date button inserts the current date and time into the comment control. Pressing the Phrase button inserts the stored 'common phrase' into the comment control. Pressing the Set button enables you to change the 'common phrase'. (See documentation on the Set Phrase dialog for details.
14	Show Ref Button: pressing the Show Ref button will display the document associated with cited reference. The location of this document is stored in the reference's Document Location Section.

Topic	Description
Getting Started using Synapse	provides a quick tour of Synapse's capabilities including examples of chemical product design.
Getting Started using Cranium	provides a quick tour of Cranium's capabilities including a discussion of structure editing.
Estimating Chemical Properties	a short video demonstrating how to estimate the physical properties of chemicals using either Synapse or Cranium.
Estimating Mixture Properties	a short video demonstrating how to estimate the physical properties of mixtures using either Synapse or Cranium.