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MilliporeSigma

1.05092

Supelco

Potassium peroxodisulfate

for analysis (<= 0.001% N) EMSURE® ACS,Reag. Ph Eur

Synonym(s):

Potassium peroxodisulfate, Potassium persulfate

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250 G
$106.00

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250 G
$106.00

About This Item

Empirical Formula (Hill Notation):
K2O8S2
CAS Number:
Molecular Weight:
270.32
MDL number:
UNSPSC Code:
12352302
EC Index Number:
231-781-8
NACRES:
NA.21
Assay:
≥99.0% (iodometric)
Grade:
ACS reagent
Form:
solid

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$106.00


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Packaging: HDPE bottle

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Technical Service
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grade

ACS reagent

Quality Level

agency

reag. Ph. Eur.

product line

EMSURE®

assay

≥99.0% (iodometric)

form

solid

potency

802 mg/kg LD50, oral (Rat)

impurities

≤0.005% Insoluble matter

pH

3.2 (20 °C, 50 g/L in H2O)

mp

100 °C (decomposition)

density

2.48 g/cm3 at 20 °C

bulk density

1150 kg/m3

anion traces

chloride (Cl-): ≤0.001%

cation traces

Fe: ≤0.0005%
Mn: ≤0.0001%
N: ≤0.001%
heavy metals (as Pb): ≤0.001%

storage temp.

2-30°C

SMILES string

[K+].[K+].[S](=O)(=O)([O-])OO[S](=O)(=O)[O-]

InChI

1S/2K.H2O8S2/c;;1-9(2,3)7-8-10(4,5)6/h;;(H,1,2,3)(H,4,5,6)/q2*+1;/p-2

InChI key

USHAGKDGDHPEEY-UHFFFAOYSA-L

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1 of 4

This Item
1.05091216224906735
form

solid

form

solid

form

powder or crystals

form

powder

assay

≥99.0% (iodometric)

assay

≥99.0% (iodometric)

assay

≥99.0%

assay

≥99.0%

Quality Level

300

Quality Level

300

Quality Level

200

Quality Level

-

grade

ACS reagent

grade

-

grade

ACS reagent

grade

ACS reagent

pH

3.2 (20 °C, 50 g/L in H2O)

pH

3.2 (20 °C, 50 g/L in H2O)

pH

2.5-4.5 (25 °C, 27 g/L)

pH

2.5-4.5 (25 °C, 27 g/L)

anion traces

chloride (Cl-): ≤0.001%

anion traces

chloride (Cl-): ≤0.001%

anion traces

-

anion traces

-

Analysis Note

Assay (iodometric): ≥ 99.0 %
Insoluble matter: ≤ 0.005 %
Entire chloride: ≤ 0.001 %
Total nitrogen (N): ≤ 0.001 %
Heavy metals (as Pb): ≤ 0.001 %
Fe (Iron): ≤ 0.0005 %
Mn (Manganese): ≤ 0.0001 %
Corresponds to ACS, Reag. Ph Eur

Legal Information

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

signalword

Danger

Hazard Classifications

Acute Tox. 4 Oral - Eye Irrit. 2 - Ox. Sol. 3 - Resp. Sens. 1 - Skin Irrit. 2 - Skin Sens. 1 - STOT SE 3

target_organs

Respiratory system

Storage Class

5.1B - Oxidizing hazardous materials

wgk_germany

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’.

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Questions

1–2 of 2 Questions  
  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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