Data Item _exptl_crystal_grow.pH
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General 
- Item name
- _exptl_crystal_grow.pH
- Category name
- exptl_crystal_grow
- Attribute name
- pH
- Required in PDB entries
- no
- Used in current PDB entries
- Yes, in about 70.8 % of entries
Item Description
The pH at which the crystal was grown. If more than one pH was
employed during the crystallization process, the final pH should
be noted here and the protocol involving multiple pH values
should be described in _exptl_crystal_grow.details.
Additional Descriptive Information for Depositors
The pH at which the crystal was grown. If more than one pH was
employed during the crystallization process, the final pH should
be noted here and the protocol involving multiple pH values
should be described in _exptl_crystal_grow.details.
Item Example1
7.4
Item Example2
7.6
Item Example3
4.3
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]+)?
Allowed Boundary Conditions
| Minimum Value | Maximum Value |
|---|---|
| 0.0 | 14.0 |
Advisory Boundary Conditions
| Minimum Value | Maximum Value |
|---|---|
| 3.5 | 10 |