## Pull Request Checklist

### Description
Brief description of the changes made.

### Type of Change
- [ ] Bug fix (non-breaking change which fixes an issue)
- [ ] New feature (non-breaking change which adds functionality)
- [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
- [ ] Documentation update

### Code Review
- [ ] Code has been reviewed by the repository owner
- [ ] All requested changes have been addressed
- [ ] Code follows the project's coding standards

### Testing
- [ ] All existing tests pass
- [ ] New tests have been added for new functionality
- [ ] H2SO4 acid formation analysis test passes
- [ ] HNO3 acid formation analysis test passes
- [ ] Manual testing performed (if applicable)

### Acid Formation Analysis Tests
The following tests are **required** to pass for all pull requests:
- `test_h2so4_acid_formation_analysis_specific_case`
- `test_hno3_acid_formation_analysis_specific_case`

These tests validate the core functionality of the acid formation analysis system.

### Changes Made
- [ ] Modified `fluid.py`
- [ ] Modified `test_fluid.py`
- [ ] Modified `acid_formation_analysis.py`
- [ ] Modified database files
- [ ] Modified other files (specify):

### Code Owner Review
This repository has a CODEOWNERS file that automatically requests review from the repository owner for all changes. Please ensure:
- [ ] The code owner has been notified of this PR
- [ ] All feedback from the code owner has been addressed

### Additional Notes
Any additional information about the changes, testing performed, or potential impacts.

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**Note**: All checks must pass before this PR can be merged. The automated tests will run when you create/update this pull request.
