Ammonium metatungstate hydrate, 25 g
Molar mass (M) 2956,42 ∙ x H2O g/mol
Density (D) 4 g/cm³
Melting point (mp) 120 °C
CAS No. [12028-48-7]
excl. VAT. | 25 g per Pack Qty.
Art. No. 0742.1
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Our salts for analysis are manufactured under strict production guidelines. Analytical purity and best quality reliably characterize each batch. Salts in p.a. quality made by Carl ROTH meet the high requirements for reproducible results. Most of our salts are additionally specified according to international standards like ACS and ISO.
Definition:p.a.: pro analysi (for analysis)ACS: American Chemical SocietyISO: International Standard Organisation
|Assay (WO3)||≥90 %|
|In water insoluble matter||≤0,05 %|
|Loss on ignition (2 h, 750 °C)||≤10,0 %|
|Aluminium (Al)||≤0,0005 %|
|Arsenic (As)||≤0,0005 %|
|Iron (Fe)||≤0,001 %|
|Molybdenum (Mo)||≤0,005 %|
|Sodium (Na)||≤0,001 %|
|Phosphorus (P)||≤0,001 %|
|Silicon (Si)||≤0,0005 %|