1.06342
Sodium dihydrogen phosphate dihydrate
for analysis EMSURE® Reag. Ph Eur
Agency
reag. Ph. Eur.
Quality Level
product line
EMSURE®
Assay
99.0-100.5% dry basis (alkalimetric)
form
crystals
potency
8290 mg/kg LD50, oral (Rat)
>7940 mg/kg LD50, skin (Rabbit)
impurities
≤0.15% In water insoluble matter (calculated on dried substance)
loss
21.5-24.0% loss on drying, 130 °C
pH
4.5 (25 °C, 12 g/L in H2O)
mp
60 °C
solubility
850 g/L
density
1.915 g/cm3 at 20 °C
bulk density
1000 kg/m3
anion traces
chloride (Cl-): ≤0.0005%
fluoride (F-): ≤0.001%
phosphate, phosphite (as H3PO4): ≤0.5%
sulfate (SO42-): ≤0.01%
cation traces
Al:, passes test (detectable with ammonia)
As: ≤0.00005%
Ca: ≤0.005%
Ca:, passes test (detectable with ammonia)
Cd: ≤0.0001%
Co: ≤0.005%
Cu: ≤0.005%
Fe: ≤0.001%
Hg: ≤0.0001%
K: ≤0.005%
Mg: ≤0.005%
N: ≤0.001%
Ni: ≤0.005%
Pb: ≤0.0004%
Zn: ≤0.025%
heavy metals (as Pb): ≤0.0005%
storage temp.
2-30°C
SMILES string
O.O.[Na+].OP(O)([O-])=O
InChI
1S/Na.H3O4P.2H2O/c;1-5(2,3)4;;/h;(H3,1,2,3,4);2*1H2/q+1;;;/p-1
InChI key
VBJGJHBYWREJQD-UHFFFAOYSA-M
Looking for similar products? Visit Product Comparison Guide
Related Categories
Analysis Note
Appearance of solution: passes test
Assay (alkalimetric, calculated on dried substance): 99.0 - 100.5 %
In water insoluble matter (calculated on dried substance): ≤ 0.15 %
pH-value (1 %, water): 4.1 - 5.0
pH-value (5 %; water): 4.2 - 4.5
Chloride (Cl): ≤ 0.0005 %
Fluoride (F): ≤ 0.001 %
Total nitrogen (as N): ≤ 0.001 %
Hydrogenphosphate (HPO₄): ≤ 0.5 %
Sulfate (SO₄): ≤ 0.01 %
Heavy metals (as Pb): ≤ 0.0005 %
Al, Ca and other elements detectable with ammonia: passes test
As (Arsenic): ≤ 0.00005 %
Ca (Calcium): ≤ 0.005 %
Cd (Cadmium): ≤ 0.0001 %
Co (Cobalt): ≤ 0.005 %
Cu (Copper): ≤ 0.005 %
Fe (Iron): ≤ 0.001 %
Hg (Mercury): ≤ 0.0001 %
K (Potassium): ≤ 0.005 %
Mg (Magnesium): ≤ 0.005 %
Ni (Nickel): ≤ 0.005 %
Pb (Lead): ≤ 0.0004 %
Zn (Zinc): ≤ 0.025 %
Substances reducing potassium permanganate (as O): passes test
Loss on drying (130 °C): 21.5 - 24.0 %
Corresponds to Reag. Ph. Eur.
Legal Information
Storage Class Code
13 - Non Combustible Solids
WGK
WGK 1
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Certificates of Analysis (COA)
Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.
Already Own This Product?
Find documentation for the products that you have recently purchased in the Document Library.
Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.
Contact Technical Service