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72069
Natriumwolframat Dihydrat
BioUltra, ≥99.0% (T)
Synonym(e):
Wolframsäure Natriumsalz Dihydrat
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| Ihnen/SKU | Verfügbarkeit | Preis |
|---|---|---|
25 g | Warenkorb auf Verfügbarkeit prüfen | € 64,00 |
100 g | Warenkorb auf Verfügbarkeit prüfen | € 191,00 |
Über diesen Artikel
grade
reagent grade
Quality Segment
product line
BioUltra
assay
≥99.0% (T)
form
crystals
impurities
insoluble matter, passes filter test, ≤0.001% total nitrogen (N), ≤0.1% free alkali (as NaOH)
pH
9.5-11.5 (25 °C, 1 M in H2O)
mp
698 °C (lit.)
solubility
H2O: 1 M at 20 °C, clear, colorless
anion traces
chloride (Cl-): ≤50 mg/kg, sulfate (SO42-): ≤100 mg/kg
cation traces
As: ≤0.5 mg/kg, Ca: ≤10 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg, Cr: ≤5 mg/kg, Cu: ≤5 mg/kg, Fe: ≤5 mg/kg, K: ≤50 mg/kg, Mg: ≤5 mg/kg, Mn: ≤5 mg/kg, Ni: ≤5 mg/kg, Pb: ≤10 mg/kg, Zn: ≤5 mg/kg
λ
1 M in H2O
UV absorption
λ: 260 nm Amax: ≤0.120, λ: 280 nm Amax: ≤0.035
SMILES string
O.O.[Na+].[Na+].[O-][W]([O-])(=O)=O
InChI
1S/2Na.2H2O.4O.W/h;;2*1H2;;;;;/q2*+1;;;;;2*-1;
InChI key
WPZFLQRLSGVIAA-UHFFFAOYSA-N
General description
Application
Other Notes
1 of 1
Dieser Artikel | |||
|---|---|---|---|
| form crystals | form crystalline powder | form crystalline powder | form crystals |
| assay ≥99.0% (T) | assay ≥99% | assay ≥99% | assay ≥98% (thermogravimetric) |
| solubility H2O: 1 M at 20 °C, clear, colorless | solubility - | solubility - | solubility 730 g/L |
| Quality Level 100 | Quality Level 200 | Quality Level 200 | Quality Level 200 |
| grade reagent grade | grade ACS reagent | grade ACS reagent | grade - |
| cation traces As: ≤0.5 mg/kg, Cd: ≤5 mg/kg, Cr: ≤5 mg/kg, Fe: ≤5 mg/kg, Mg: ≤5 mg/kg, Ni: ≤5 mg/kg, Zn: ≤5 mg/kg, Ca: ≤10 mg/kg, Cu: ≤5 mg/kg, Mn: ≤5 mg/kg, Co: ≤5 mg/kg, Pb: ≤10 mg/kg, K: ≤50 mg/kg | cation traces Mo: ≤0.001%, heavy metals and iron (as Pb): ≤0.001% | cation traces Mo: ≤0.001%, heavy metals and iron (as Pb): ≤0.001% | cation traces Fe: ≤0.002%, N: ≤0.005%, excess alkali (as NaOH): ≤0.1% |
| form crystals | form crystalline powder | form crystalline powder | form crystals |
| assay ≥99.0% (T) | assay ≥99% | assay ≥99% | assay ≥98% (thermogravimetric) |
| solubility H2O: 1 M at 20 °C, clear, colorless | solubility - | solubility - | solubility 730 g/L |
| Quality Level 100 | Quality Level 200 | Quality Level 200 | Quality Level 200 |
| grade reagent grade | grade ACS reagent | grade ACS reagent | grade - |
| cation traces As: ≤0.5 mg/kg, Cd: ≤5 mg/kg, Cr: ≤5 mg/kg, Fe: ≤5 mg/kg, Mg: ≤5 mg/kg, Ni: ≤5 mg/kg, Zn: ≤5 mg/kg, Ca: ≤10 mg/kg, Cu: ≤5 mg/kg, Mn: ≤5 mg/kg, Co: ≤5 mg/kg, Pb: ≤10 mg/kg, K: ≤50 mg/kg | cation traces Mo: ≤0.001%, heavy metals and iron (as Pb): ≤0.001% | cation traces Mo: ≤0.001%, heavy metals and iron (as Pb): ≤0.001% | cation traces Fe: ≤0.002%, N: ≤0.005%, excess alkali (as NaOH): ≤0.1% |
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signalword
Warning
hcodes
Hazard Classifications
Acute Tox. 4 Oral
Lagerklasse
13 - Non Combustible Solids
wgk
WGK 2
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
dust mask type N95 (US), Eyeshields, Gloves
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