Table 1. Crystallographic data.
| Composition | K+Na+ C4H4O6 24H2O |
| Formula weight, Mr | 282.22 |
| Melting range/anhydrate/decomposition (K) | 343353/403413/initial 493 |
| Crystal system, space group | Orthorhombic, P21212 |
| Temperature, T (K) | 308.0(7) |
| Unit-cell dimensions () | a = 11.9247(5), b = 14.3066(7), c = 6.2444(5) |
| V (3) | 1065.31(11) |
| Molecules per unit cell, Z | 4 |
| Calc. density, Dx (Mgm3) | 1.7596(2) |
| Wavelength, () | 0.60097(10) |
| Crystal size (mm) | 0.20 0.14 0.088 |
Absorption coefficient,  (mm1) |
0.352 |
| Transmission, min/max | 0.952/0.977 |
TDS correction  , min/max |
1 105/5.869 102 |