MilliporeSigma
All Photos(1)

Documents

1.06509

Supelco

Sodium thiosulfate pentahydrate

99.999 Suprapur®

Sign Into View Organizational & Contract Pricing

Synonym(s):
Sodium thiosulfate pentahydrate, Antichlor
Empirical Formula (Hill Notation):
Na2O3S2 · 5H2O
CAS Number:
Molecular Weight:
248.18
MDL number:
EC Index Number:
231-867-5

grade

for inorganic trace analysis

Quality Level

Assay

99.999%

form

solid

potency

>5000 mg/kg LD50, oral (Rat)

pH

6.0-7.5 (20 °C, 100 g/L in H2O)

mp

48 °C

solubility

701 g/L

density

1.74 g/cm3 at 20 °C

bulk density

1000 kg/m3

storage temp.

2-30°C

InChI

1S/2Na.H2O3S2.5H2O/c;;1-5(2,3)4;;;;;/h;;(H2,1,2,3,4);5*1H2/q2*+1;;;;;;/p-2

InChI key

PODWXQQNRWNDGD-UHFFFAOYSA-L

Related Categories

Compare Similar Items

View Full Comparison

Show Differences

1 of 4

This Item
1.065161.936481.93248
assay

99.999%

assay

99.5-101.0% (iodometric)

assay

-

assay

-

form

solid

form

solid

form

-

form

-

pH

6.0-7.5 (20 °C, 100 g/L in H2O)

pH

6.0-7.5 (20 °C, 100 g/L in H2O)

pH

-

pH

-

mp

48 °C

mp

48 °C

mp

-

mp

-

solubility

701 g/L

solubility

-

solubility

-

solubility

-

Analysis Note

Purity (metallic): ≥ 99.999 %
Assay (iodometric, calculated as pentahydrate): ≥ 99.0 %
Phosphate (PO₄): ≤ 5 ppm
Al (Aluminium): ≤ 0.05 ppm
Ba (Barium): ≤ 2.0 ppm
Bi (Bismuth): ≤ 0.01 ppm
Ca (Calcium): ≤ 0.10 ppm
Cd (Cadmium): ≤ 0.010 ppm
Co (Cobalt): ≤ 0.010 ppm
Ce (Cerium): ≤ 0.010 ppm
Cr (Chromium): ≤ 0.010 ppm
Cu (Copper): ≤ 0.010 ppm
Eu (Europium): ≤ 0.010 ppm
Fe (Iron): ≤ 0.05 ppm
K (Potassium): ≤ 5.0 ppm
La (Lanthanum): ≤ 0.010 ppm
Li (Lithium): ≤ 1.0 ppm
Mg (Magnesium): ≤ 0.10 ppm
Mn (Manganese): ≤ 0.050 ppm
Ni (Nickel): ≤ 0.05 ppm
Pb (Lead): ≤ 0.05 ppm
Rb (Rubidium): ≤ 1.0 ppm
Sc (Scandium): ≤ 0.010 ppm
Sm (Samarium): ≤ 0.010 ppm
Sr (Strontium): ≤ 0.10 ppm
Tl (Thallium): ≤ 0.01 ppm
Y (Yttrium): ≤ 0.010 ppm
Yb (Ytterbium): ≤ 0.010 ppm
Zn (Zinc): ≤ 0.050 ppm

Legal Information

SUPRAPUR is a registered trademark of Merck KGaA, Darmstadt, Germany

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Documents related to the products that you have purchased in the past have been gathered in the Document Library for your convenience.

Visit the Document Library

Difficulty Finding Your Product Or Lot/Batch Number?

Product numbers are combined with Pack Sizes/Quantity when displayed on the website (example: T1503-25G). Please make sure you enter ONLY the product number in the Product Number field (example: T1503).

Example:

T1503
Product Number
-
25G
Pack Size/Quantity

Additional examples:

705578-5MG-PW

PL860-CGA/SHF-1EA

MMYOMAG-74K-13

1000309185

enter as 1.000309185)

Having trouble? Feel free to contact Technical Service for assistance.

Lot and Batch Numbers can be found on a product's label following the words 'Lot' or 'Batch'.

Aldrich Products

  • For a lot number such as TO09019TO, enter it as 09019TO (without the first two letters 'TO').

  • For a lot number with a filling-code such as 05427ES-021, enter it as 05427ES (without the filling-code '-021').

  • For a lot number with a filling-code such as STBB0728K9, enter it as STBB0728 without the filling-code 'K9'.

Not Finding What You Are Looking For?

In some cases, a COA may not be available online. If your search was unable to find the COA you can request one.

Request COA

Customers Also Viewed

Slide 1 of 8

1 of 8

Sodium thiosulfate ≥99.99% trace metals basis

Sigma-Aldrich

563188

Sodium thiosulfate

Sodium thiosulfate anhydrous EMPLURA®

Supelco

1.06512

Sodium thiosulfate

Sodium thiosulfate purum p.a., anhydrous, ≥98.0% (RT)

Sigma-Aldrich

72049

Sodium thiosulfate

Sodium thiosulfate ReagentPlus®, 99%

Sigma-Aldrich

217263

Sodium thiosulfate

Potassium iodate 99.995% trace metals basis

Sigma-Aldrich

438464

Potassium iodate

Potassium iodide BioUltra, ≥99.5% (AT)

Sigma-Aldrich

60399

Potassium iodide

Silver nitrate ACS reagent, ≥99.0%

Sigma-Aldrich

209139

Silver nitrate

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service