POTASSIUM DIHYDR. PHOSPH. P.A. EMSURE

Code: 1048739050 D2-231

Analysis Note

Assay (alkalimetric, calculated on dried substance): 99.5 - 100.5 %Assay (alkalimetric; dried substance): ≥ 99.5 %pH-value (5 %; water): 4.2 - 4.5Chloride...

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Analysis Note

Assay (alkalimetric, calculated on dried substance): 99.5 - 100.5 %Assay (alkalimetric; dried substance): ≥ 99.5 %pH-value (5 %; water): 4.2 - 4.5Chloride (Cl): ≤ 0.0005 %Sulfate (SO₄): ≤ 0.003 %Total nitrogen (N): ≤ 0.001 %Heavy metals (as Pb): ≤ 0.0010 %As (Arsenic): ≤ 0.0002 %Cu (Copper): ≤ 0.0003 þ (Iron): ≤ 0.0010 %Na (Sodium): ≤ 0.02 %Pb (Lead): ≤ 0.001 %Reducing substances: passes testLoss on drying (110 °C): ≤ 0.2 %Loss on drying (130 °C): ≤ 0.2 %Correspons to ISO

Legal Information

EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany

Packaging

25, 50 kg in Fibre carton

1, 5 kg in Plastic bottle

250 g in Plastic bottle

agency	reag. ISO
anion traces	sulfate (SO₄^2-): ≤0.003%, chloride (Cl^-): ≤0.0005%
assay	≥99.5% dry basis (alkalimetric), 99.5-100.5% (alkalimetric)
bulk density	1200 kg/m³
cation traces	Fe: ≤0.0010%, Cu: ≤0.0003%, heavy metals (as Pb): ≤0.0010%, N: ≤0.001%, Pb: ≤0.001%, As: ≤0.0002%, Na: ≤0.02%
density	2.338 g/mL at 25 °C (lit.)
form	solid
InChI key	GNSKLFRGEWLPPA-UHFFFAOYSA-M
InChI	1S/K.H3O4P/c;1-5(2,3)4/h;(H3,1,2,3,4)/q+1;/p-1
loss	≤0.2% loss on drying, 130 °C, ≤0.2% loss on drying, 110 °C
mp	252.6 °C (lit.)
pH	4.2-4.6 (20 °C, 20 g/L in H₂O)
potency	>4640 mg/kg LD₅₀, skin (Rabbit)
product line	EMSURE^®
Quality Level	300
SMILES string	[K+].OP(O)([O-])=O
solubility	208 g/L
storage temp.	2-30°C
technique(s)	UV/Vis spectroscopy: suitable