1.08087
Potassium sodium tartrate tetrahydrate
for analysis EMSURE® ACS,ISO,Reag. Ph Eur
Synonym(s):
Potassium sodium tartrate tetrahydrate, Sodium potassium tartrate, Tartaric acid potassium sodium salt
About This Item
grade
ACS reagent
Quality Level
Agency
reag. ISO
reag. Ph. Eur.
suitable for SM 4500 - NH3
product line
EMSURE®
Assay
99.0-102.0% (alkalimetric)
form
solid
impurities
≤0.005% Insoluble matter
pH
7.0-8.5 (25 °C, 50 g/L in H2O)
mp
70-80 °C
bulk density
1000 kg/m3
anion traces
chloride (Cl-): ≤0.0005%
phosphate (PO43-): ≤0.001%
sulfate (SO42-): ≤0.005%
cation traces
Ca: ≤0.004%
Cu: ≤0.0005%
Fe: ≤0.0005%
NH4+: ≤0.002%
Pb: ≤0.0005%
heavy metals (as Pb): ≤0.0005%
storage temp.
2-30°C
InChI
1S/C4H6O6.K.Na.4H2O/c5-1(3(7)8)2(6)4(9)10;;;;;;/h1-2,5-6H,(H,7,8)(H,9,10);;;4*1H2/q;2*+1;;;;/p-2/t1-,2-;;;;;;/m1....../s1
InChI key
VZOPRCCTKLAGPN-ZFJVMAEJSA-L
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Analysis Note
Insoluble matter: ≤ 0.005 %
pH-value (5 %; water; 25 °C): 7.0 - 8.5
Chloride (Cl): ≤ 0.0005 %
Phosphate (PO₄): ≤ 0.001 %
Sulfate (SO₄): ≤ 0.005 %
Heavy metals (as Pb): ≤ 0.0005 %
Ca (Calcium): ≤ 0.004 %
Cu (Copper): ≤ 0.0005 %
Fe (Iron): ≤ 0.0005 %
NH₄ (Ammonium): ≤ 0.002 %
Pb (Lead): ≤ 0.0005 %
Corresponds to ACS,ISO,Reag. Ph Eur
Legal Information
Storage Class Code
11 - Combustible Solids
WGK
WGK 1
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