Sodium thiosulphate, 500 g
Molar mass (M) 158,11 g/mol
Density (D) 1,67 g/cm³
CAS No. [7772-98-7]
excl. VAT. | 500 g per Pack Qty.
Art. No. HN25.2
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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 (iodom.)||≥99 %|
|pH value (5 % in H2O)||6,0-8,4|
|In H2O insoluble matter||≤0,01 %|
|Loss on drying (105 °C)||≤1 %|
|Chloride (Cl)||≤0,05 %|
|Sulphate and sulphite (as SO4)||≤0,5 %|
|Sulphide (S)||≤0,0005 %|
|Calcium (Ca)||≤0,004 %|
|Cadmium (Cd)||≤0,001 %|
|Cobalt (Co)||≤0,001 %|
|Copper (Cu)||≤0,001 %|
|Iron (Fe)||≤0,001 %|
|Potassium (K)||≤0,01 %|
|Nickel (Ni)||≤0,001 %|
|Lead (Pb)||≤0,001 %|
|Zinc (Zn)||≤0,001 %|