Density |
2.22 g/cm3 (20 °C) |
Melting Point |
270 °C (decomposition) |
pH value |
8.6 (50 g/l, H₂O, 20 °C) |
Bulk density |
1000 kg/m3 |
Solubility |
96 g/l |
LD 50 oral |
LD50 Rat 4220 mg/kg |
RTECS |
VZ0950000 |
Storage class |
10 - 13 Other liquids and solids |
WGK |
WGK 1 slightly hazardous to water |
Disposal |
14 |
Storage |
Store at +5°C to +30°C. |
Declaration (railroad and road) ADR, RID |
Kein Gefahrgut |
Declaration (transport by air) IATA-DGR |
No Dangerous Good |
Declaration (transport by sea) IMDG-Code |
No Dangerous Good |
Appearance of solution |
passes test |
Identity |
passes test |
Assay (acidimetric; calculated on dried substance) |
99.7 - 100.3 % |
Assay (acidimetric) |
99.0 - 101.0 % |
Insoluble matter |
≤ 0.015 % |
pH-value (5 %; water) |
≤ 8.6 |
Chloride (Cl) |
≤ 0.002 % |
Phosphate (PO₄) |
≤ 0.001 % |
Sulfate (SO₄) |
≤ 0.015 % |
Phosphate and Silicate (as SiO₂) |
≤ 0.005 % |
Sulfur compounds (as SO₄) |
≤ 0.003 % |
Total nitrogen (N) |
≤ 0.0005 % |
Ammonium (NH₄) |
≤ 0.0005 % |
Heavy metals (as Pb) |
≤ 0.0005 % |
As (Arsenic) |
≤ 0.0002 % |
Ca (Calcium) |
≤ 0.01 % |
Cu (Copper) |
≤ 0.0002 % |
Fe (Iron) |
≤ 0.0005 % |
K (Potassium) |
≤ 0.005 % |
Mg (Magnesium) |
≤ 0.005 % |
Pb (Lead) |
≤ 0.0005 % |
Iodine reducing matter (as I) |
≤ 0.0065 % |
Loss on drying (Silica gel) |
≤ 0.20 % |
Corresponds to ACS, Reag. Ph Eur |