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Sodium thiosulphate pentahydrate, 2.5 kg

≥99,5 %, p.a., ACS
VE
Verp.
Empirical formula Na2S2O3 · 5 H2O
Molar mass (M) 248,18 g/mol
Density (D) 1,73 g/cm³
Melting point (mp) 48 °C
WGK 1
CAS No. 10102-17-7
EG-Nr. 231-867-5

Photographic fixer; for volumetric solutions in iodometry; for detection of hydrocyanic acid, quinine, chlorate hydrate and cobalt.

87,65 €/VE 

Excl. btw | 2,5 kg Per VE

Bestelnr. P034.3

Op voorraad
Vrij van verzendingskosten vanaf 250 €
Snelle en betrouwbare levering!
Vanaf 6 VE 83,27 €/VE
Vanaf 24 VE 78,88 €/VE
Sodium thiosulphate pentahydrate
Geselecteerde hoeveelheid:   0
  1. Tussentotaal:  0.00
Bestelnr. VE Verp. Prijs Hoeveelheid
P034.1 500 g plastic

26,80 €

P034.2 1 kg plastic

44,00 €

P034.3 2,5 kg plastic

87,65 €

P034.5 25 kg plastic

633,20 €

Op voorraad
Beschikbaar
In bestelling
Niet meer verkrijgbaar
Leveringsdatum onbekend
Geselecteerde hoeveelheid:   0
  1. Tussentotaal:  0.00

Downloads / MSDS


Algemene informatie

Determination of biological oxygen demand (BOD)

BOD (biochemical oxygen demand) is a measure of the amount of oxygen that microorganisms need to break down the organic material in a water sample over a specific period of time. It is important to calculate the oxygen concentration at the start and end of the measuring time, which is usually five days and is expressed as an index (BOD5). Chemical, electrochemical or physical methods are used for this calculation.


Indicators and Dyes

Carl ROTH offers many indicators and dyes of high purity, which can be used in special applications.


Salts for Analysis

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


Salts


Analysecertificaten

Hier kunt u uw analysecertificaat voor het geselecteerde product zoeken en downloaden. Geef een chargenummer op.
De volgende analysecertificaten werden gevonden:

Guarantee analysis

Assay (iodom.)99,5-101,0 %
pH value (5 % in water)6,0-8,4
In H2O insoluble matter≤0,005 %
Total nitrogen (as N)≤0,002 %
Chloride (Cl)≤0,02 %
Sulphate and sulphite (as SO4)≤0,1 %
Sulphide (S)≤0,0001 %
Heavy metals (as Pb)≤0,0005 %
Calcium (Ca)≤0,002 %
Cobalt (Co)≤0,0005 %
Chromium (Cr)≤0,0005 %
Magnesium (Mg)≤0,001 %
Nickel (Ni)≤0,0005 %
Potassium (K)≤0,005 %
Cadmium (Cd)≤0,0005 %
Copper (Cu)≤0,0005 %
Iron (Fe)≤0,0005 %
Manganese (Mn)≤0,0005 %
Lead (Pb)≤0,0005 %
Zinc (Zn)≤0,0005 %