1.19753
di-Sodium hydrogen phosphate dihydrate
buffer substance for chromatography LiChropur™
Synonym(s):
di-Sodium hydrogen phosphate dihydrate, Sodium monohydrogen phosphate, Sodium phosphate dibasic, sec-Sodium phosphate, Disodium hydrogen phosphate dihydrate, Disodium phosphate, Sodium phosphate dibasic dihydrate
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About This Item
grade
reagent grade
Quality Level
assay
≥99.0% (acidimetric)
form
solid
potency
>2000 mg/kg LD50, oral (Rat)
technique(s)
HPLC: suitable
pH
9.0-9.4 (20 °C, 50 g/L in H2O)
mp
92.5 °C (Elimination of water of crystallisation)
density
2.1 g/cm3 at 20 °C
bulk density
850‑1000 kg/m3
storage temp.
2-30°C
InChI
1S/2Na.H3O4P.2H2O/c;;1-5(2,3)4;;/h;;(H3,1,2,3,4);2*1H2/q2*+1;;;/p-2
InChI key
KDQPSPMLNJTZAL-UHFFFAOYSA-L
Analysis Note
pH-value (5 %; water): 9.0 - 9.2
Assay (acidimetric): ≥ 99.0 %
Self-absorption (215 nm; 0.2 mol/l; 1 cm; water): ≤ 0.15
Self-absorption (220 nm; 0.2 mol/l; 1 cm; water): ≤ 0.05
Self-absorption (254 nm; 0.2 mol/l; 1 cm; water): ≤ 0.02
Legal Information
1 of 1
This Item | |||
|---|---|---|---|
| form solid | form - | form solid | form solid |
| assay ≥99.0% (acidimetric) | assay 98.5-102.0% (T) | assay - | assay - |
| Quality Level 100 | Quality Level - | Quality Level 500 | Quality Level 500 |
| grade reagent grade | grade - | grade - | grade - |
| density 2.1 g/cm3 at 20 °C | density - | density 2.1 g/cm3 at 20 °C | density 2.1 g/cm3 at 20 °C |
| pH 9.0-9.4 (20 °C, 50 g/L in H2O) | pH 8.8-9.4 | pH 9.0-9.4 (20 °C, 50 g/L in H2O) | pH 8.9-9.2 (5% in H2O) |
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Storage Class
13 - Non Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
Certificates of Analysis (COA)
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