105107.1000
Potassium disulfate GR for analysis
Ürün bilgisi | |||
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Grade | ACS | ||
Synonyms | Potassium pyrosulfate | ||
Hill Formula | K2O7S2 | ||
HS Code | 2833 29 80 | ||
EC number | 232-216-8 | ||
Molar mass | 254.33 g/mol | ||
CAS number | 7790-62-7 |
Kimyasal ve fiziksel veri | |||
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Solubility | (20 °C) soluble | ||
Melting point | 325 °C | ||
Molar mass | 254.33 g/mol | ||
Density | 2.25 g/cm3 (25 °C) | ||
Bulk density | 830 kg/m3 | ||
pH value | 0.8 (50 g/l, H2O, 20 °C) |
GHS'e göre güvenlik bilgisi | |||
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Precautionary Statement(s) | P260: Do not breathe dust. P262: Do not get in eyes, on skin, or on clothing. |
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Storage class | 10 - 13 Other liquids and solids | ||
WGK | WGK 1 slightly water endangering | ||
Disposal | 14 Inorganic salts: Container I. Neutral solutions of the these salts: Container D. Before placing in Container D, check the pH with pH-Universal indicator strips (Item No. 109535). |
Güvenlik bilgisi | |||
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S Phrase | S 22-24/25 Do not breathe dust.Avoid contact with skin and eyes. |
Spesifikasyonlar | |
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Assay (acidimetric, as K2S2O7) | 97.5 - 100.0 % |
Acidity (as H2SO4) | 37.5 - 38.6 % |
Insoluble and by ammoniumhydroxide precipitated matter | ≤ 0.01 % |
Chloride (Cl) | ≤ 0.0005 % |
Phosphate (PO4) | ≤ 0.001 % |
Total nitrogen (N) | ≤ 0.002 % |
Heavy metals (as Pb) | ≤ 0.001 % |
Al (Aluminium) | ≤ 0.001 % |
As (Arsenic) | ≤ 0.0005 % |
Ca (Calcium) | ≤ 0.002 % |
Fe (Iron) | ≤ 0.0005 % |
Mg (Magnesium) | ≤ 0.0005 % |
Na (Sodium) | ≤ 0.01 % |
Water (H2O) | ≤ 2.5 % |
Conforms ACS. |