#[derive(Debug, Clone, Copy)]
pub struct SurfaceTension {
pub formula: &'static str,
pub sigma_n_per_m: f64,
pub temperature_k: f64,
}
pub const TABLE: &[SurfaceTension] = &[
SurfaceTension { formula: "H2O", sigma_n_per_m: 0.07197, temperature_k: 298.15 },
SurfaceTension { formula: "Hg", sigma_n_per_m: 0.486, temperature_k: 298.15 },
SurfaceTension { formula: "CH3OH", sigma_n_per_m: 0.02240, temperature_k: 298.15 },
SurfaceTension { formula: "C2H5OH", sigma_n_per_m: 0.02195, temperature_k: 298.15 },
SurfaceTension { formula: "C3H8O3", sigma_n_per_m: 0.0633, temperature_k: 298.15 },
SurfaceTension { formula: "C6H6", sigma_n_per_m: 0.02822, temperature_k: 298.15 },
SurfaceTension { formula: "C7H8", sigma_n_per_m: 0.02793, temperature_k: 298.15 },
SurfaceTension { formula: "C8H10", sigma_n_per_m: 0.02817, temperature_k: 298.15 },
SurfaceTension { formula: "CHCl3", sigma_n_per_m: 0.02614, temperature_k: 298.15 },
SurfaceTension { formula: "CH2Cl2", sigma_n_per_m: 0.02780, temperature_k: 298.15 },
SurfaceTension { formula: "CCl4", sigma_n_per_m: 0.02605, temperature_k: 298.15 },
SurfaceTension { formula: "C3H6O", sigma_n_per_m: 0.02266, temperature_k: 298.15 },
SurfaceTension { formula: "C6H14", sigma_n_per_m: 0.01789, temperature_k: 298.15 },
SurfaceTension { formula: "C7H16", sigma_n_per_m: 0.01996, temperature_k: 298.15 },
SurfaceTension { formula: "C8H18", sigma_n_per_m: 0.02134, temperature_k: 298.15 },
SurfaceTension { formula: "NH3", sigma_n_per_m: 0.02338, temperature_k: 239.81 },
SurfaceTension { formula: "N2", sigma_n_per_m: 0.00890, temperature_k: 77.0 },
SurfaceTension { formula: "O2", sigma_n_per_m: 0.01320, temperature_k: 90.0 },
SurfaceTension { formula: "Ar", sigma_n_per_m: 0.01290, temperature_k: 87.30 },
SurfaceTension { formula: "He", sigma_n_per_m: 0.000353,temperature_k: 4.22 },
SurfaceTension { formula: "H2", sigma_n_per_m: 0.00193, temperature_k: 20.27 },
SurfaceTension { formula: "Ne", sigma_n_per_m: 0.00549, temperature_k: 27.07 },
SurfaceTension { formula: "Kr", sigma_n_per_m: 0.01580, temperature_k: 119.93 },
SurfaceTension { formula: "Xe", sigma_n_per_m: 0.01880, temperature_k: 165.03 },
SurfaceTension { formula: "CO2", sigma_n_per_m: 0.00120, temperature_k: 298.15 },
SurfaceTension { formula: "CH4", sigma_n_per_m: 0.01340, temperature_k: 111.65 },
SurfaceTension { formula: "C2H6", sigma_n_per_m: 0.01620, temperature_k: 184.55 },
SurfaceTension { formula: "C3H8", sigma_n_per_m: 0.01880, temperature_k: 231.04 },
SurfaceTension { formula: "C4H10", sigma_n_per_m: 0.01200, temperature_k: 298.15 },
SurfaceTension { formula: "C5H12", sigma_n_per_m: 0.01580, temperature_k: 298.15 },
SurfaceTension { formula: "C2H4O2", sigma_n_per_m: 0.02750, temperature_k: 298.15 },
SurfaceTension { formula: "Br2", sigma_n_per_m: 0.04050, temperature_k: 298.15 },
SurfaceTension { formula: "CS2", sigma_n_per_m: 0.03155, temperature_k: 298.15 },
SurfaceTension { formula: "SO2", sigma_n_per_m: 0.02500, temperature_k: 263.13 },
SurfaceTension { formula: "Cl2", sigma_n_per_m: 0.01840, temperature_k: 239.11 },
];
pub fn by_formula(formula: &str) -> Option<&'static SurfaceTension> {
TABLE.iter().find(|s| s.formula == formula)
}