Products > Optimize Reagents > Optimize - Salts > Sodium phosphate dibasic dihydrate
Sodium phosphate dibasic dihydrate
Synonyms: sec-Sodium phosphate or di-sodium hydrogen phosphate dihydrate or disodium hydrogen phosphate dihydrate or disodium phosphate
HNa2O4P • 2H2O
Na2HPO4 • 2H2O
Mr 177.99
CAS Number [10028-24-7]
EC Number 231-448-7
Merck 14,8659
MDL Number MFCD00149182
Purity ≥ 99.0%
Measured pH Range: 8.7 - 8.9 at 25°C
Measured Conductivity Range: 61.9 - 69.0 mS/cm at 25°C
Measured Refractive Index Range: 1.35644 - 1.35717 at 20°C
Al ≤0.0005%
As ≤0.00001%
Ba ≤0.0005%
Bi ≤0.0005%
Ca ≤0.001%
Cd ≤0.0005%
Cl ≤0.001%
Co ≤0.0005%
Cr ≤0.0005%
Cu ≤0.0005%
Fe ≤0.0005%
K ≤0.005%
Li ≤0.0005%
Mg ≤0.0005%
Mn ≤0.0005%
Mo ≤0.0005%
N ≤0.001%
Ni ≤0.0005%
Pb ≤0.0005%
SO4 ≤0.005%
Sr ≤0.0005%
Zn ≤0.0005%
1.0 M Sodium phosphate dibasic dihydrate is completely soluble in water at 4 degrees Celsius and higher temperatures. Below 4 degrees Celsius 1.0 M Sodium phosphate dibasic dihydrate will crystallize out of solution. If this happens, warm the reagent at 37 degrees until complete solubility is observed (4 to 8 hours) and then store the reagent between 4 and 25 degrees Celsius.
1. Properties of a new crystal form of the complex of concanavalin A with methyl alpha-D-glucopyranoside. Yariv, J; Kalb, AJ; Papiz, MZ; Helliwell, JR; Andrews, SJ; Habash, J. J Mol Biol 195, 759- 760, 1987.