Data Item _chemical.melting_point_lt
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General 
- Item name
- _chemical.melting_point_lt
- Category name
- chemical
- Attribute name
- melting_point_lt
- Required in PDB entries
- no
- Used in current PDB entries
- No
Item Description
A temperature in kelvins below which the melting point (the
temperature at which the crystalline solid changes to a liquid)
lies. _chemical.melting_point_gt and _chemical.melting_point_lt
allow a range of temperatures to be given.
_chemical.melting_point should always be used in preference
to these two items whenever possible.
Data Type 
- Data type code
- float
- Data type detail
- float item types are the subset of numbers that are the floating numbers.
- Primitive data type code
- numb
- Regular expression
- -?(([0-9]+)[.]?|([0-9]*[.][0-9]+))([(][0-9]+[)])?([eE][+-]?[0-9]+)?
- Units
- kelvins
Allowed Boundary Conditions
| Minimum Value | Maximum Value |
|---|---|
| 0.0 | +∞ |
Related Items 
| Related Item Name | Relation Type |
|---|---|
| _chemical.melting_point | alternate |
Aliases
| Alias Item Name | Dictionary Name | Dictionary Version |
|---|---|---|
| _chemical_melting_point_lt | cif_core.dic | 2.3 |