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60357

Potassium phthalate monobasic

reference material for titrimetry, certified by BAM, >99.5%

Synonim(y):

KHP, Phthalic acid monopotassium salt, Potassium biphthalate, Potassium hydrogen phthalate

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Gabaryty przesyłkiSKUDostępnośćCena netto
50 g
Skontaktuj się z Obsługą Klienta, aby uzyskać informacje na temat dostępności
1360,00 zł

Informacje o tej pozycji

Wzór liniowy:
HOOCC6H4COOK
Numer CAS:
877-24-7
Masa cząsteczkowa:
204.22
UNSPSC Code:
41116107
NACRES:
NA.24
PubChem Substance ID:
329758900
EC Number:
212-889-4
Beilstein/REAXYS Number:
3637128
MDL number:
MFCD00013070

1360,00 zł

Skontaktuj się z Obsługą Klienta, aby uzyskać informacje na temat dostępności
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grade

reference material

Quality Segment

100

assay

>99.5%

quality

certified by BAM

technique(s)

titration: suitable

pH

4

mp

295-300 °C (dec.) (lit.)

application(s)

environmental

format

neat

SMILES string

[K+].OC(=O)c1ccccc1C([O-])=O

InChI

1S/C8H6O4.K/c9-7(10)5-3-1-2-4-6(5)8(11)12;/h1-4H,(H,9,10)(H,11,12);/q;+1/p-1

InChI key

IWZKICVEHNUQTL-UHFFFAOYSA-M

General description

Download your certificate at http://www.sigma-aldrich.com to view certified values, including uncertainty and expiry date.
Potassium hydrogen phthalate, also known as KHP, is a volumetric standard produced under stringent conditions and measured with the highest possible precision. The content of the standard is measured using volumetric acid-base titrations. Its certified value and uncertainty measurement are in accordance with ISO Guide 35.

Application

It finds its use as a reference material for the standardization of volumetric solutions in alkalimetric titrations.

Features and Benefits

  • Available as a solid in a secure glass bottle to ensure its stability for the entire shelf life until opened.
  • High-purity material traceable to NIST SRM
  • High-quality offering accurate titer determinations
  • Accompanied by a certificate of analysis (CoA)

Analysis Note

Exact concentration, expiry date and detailed information on certification can be found on the certificate and certification report, included in each package. Content and expiry date on label.
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Ta pozycja
146591.01965179922
Potassium phthalate monobasic reference material for titrimetry, certified by BAM, >99.5%

Supelco

60357

Potassium phthalate monobasic

Potassium phthalate monobasic TraceCERT®, certified reference material, 1H-qNMR Standard, Manufactured by: Sigma-Aldrich Production GmbH, Switzerland

Supelco

14659

Potassium phthalate monobasic

Potassium hydrogen phthalate certified secondary standard reference material for pH measurement; directly traceable to primary SRM from NIST/PTB pH(S) = 4.005 (25°C) Certipur®

Supelco

1.01965

Potassium hydrogen phthalate

Potassium phthalate monobasic ACS reagent, acidimetric standard

Sigma-Aldrich

179922

Potassium phthalate monobasic

application(s)

environmental

application(s)

cleaning products
cosmetics
environmental
flavors and fragrances
food and beverages
personal care
pharmaceutical

application(s)

environmental
food and beverages
general analytical
industrial qc
pharmaceutical

application(s)

-

technique(s)

titration: suitable

technique(s)

gas chromatography (GC): suitable

technique(s)

-

technique(s)

-

assay

>99.5%

assay

-

assay

-

assay

99.95-100.05% dry basis

format

neat

format

neat

format

neat

format

-

grade

reference material

grade

certified reference material, TraceCERT®

grade

certified reference material

grade

ACS reagent

pH

4

pH

4

pH

4.0 (20 °C, 50 g/L in H2O)

pH

4.00-4.02 (25.0 °C±0.2 °C, 0.05 M)

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Klasa składowania

11 - Combustible Solids

wgk

WGK 1

flash_point_f

387.1 °F - Pensky-Martens closed cup

flash_point_c

197.3 °C - Pensky-Martens closed cup

ppe

Eyeshields, Gloves, type N95 (US)

Wybierz jedną z najnowszych wersji:

Certyfikaty analizy (CoA)

Lot/Batch Number
BCCJ8134
BCCC4843
BCBT3524

Nie widzisz odpowiedniej wersji?

Jeśli potrzebujesz konkretnej wersji, możesz wyszukać konkretny certyfikat według numeru partii lub serii.

Wyszukaj dokument COA

Masz już ten produkt?

Dokumenty związane z niedawno zakupionymi produktami zostały zamieszczone w Bibliotece dokumentów.

Odwiedź Bibliotekę dokumentów

Acid- Base Dissociation Constants of o-Phthalic Acid in Acetonitrile/Water Mixtures over the (15 to 50)? C Temperature Range and Related Thermodynamic Quantities
Gagliardi GL, et al.
Journal of Chemical and Engineering Data, 55(1), 85-91 (2010)
Purity of potassium hydrogen phthalate, determination with precision coulometric and volumetric titration?A comparison
Recknagel S, et al.
Analytica Chimica Acta, 599, 256-263 (2007)
Purity of potassium hydrogen phthalate, determination with precision coulometric and volumetric titration--A comparison
Recknagel S, et al.
Analytica Chimica Acta, 599(2), 256-263 (2007)
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Numer pozycji handlu globalnego

SKUNUMER GTIN
PH017423-50MG04054839953361
60357-50G04061838261045

Questions

1–2 of 2 Questions  

  1. 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/418/501/product-dating-information-06-25-mk.pdf

      Helpful?

  2. 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

      Helpful?

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