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
1.02400
Potassium hydrogen phthalate
Volumetric standard, secondary reference material for alkalimetry, traceable to NIST Standard Reference Material (SRM) Certipur® Reag. Ph Eur
Synonyme(s) :
Potassium hydrogen phthalate
Sélectionner une taille de conditionnement
| À vous/Référence | Disponibilité | Prix |
|---|
A propos de cet article
Quality Segment
agency
ISO 17025, reag. Ph. Eur.
form
solid
potency
>3200 mg/kg LD50, oral (Rat)
technique(s)
titration: suitable
pH
4.0 (20 °C, 50 g/L in H2O)
mp
295-300 °C
solubility
80 g/L
density
1.636 g/cm3
bulk density
900 kg/m3
storage temp.
15-25°C
SMILES string
[K+].[O-]C(=O)c1c(cccc1)C(=O)[O-].[H+]
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
Please visit ISO certificates and Site Quality Self-Assessments to access the current certificates of accreditation.
In our effort to be more sustainable, we′re going digital with COAs-download them directly from our website. Download your certificate at http://www.sigma-aldrich.com to view certified values, including uncertainty and expiry date.
Application
Features and Benefits
- Available as a solid in a secure glass bottle to ensure its stability for the entire shelf life until opened.
- Certified reference material according to ISO 17034
- High-purity material traceable to NIST SRMs
- Qualified in a DIN EN ISO/IEC 17025 accredited laboratory
- In accordance with the chapter reagents of Ph. Eur
- High-quality offering accurate titer determinations
Packaging
Legal Information
1 of 1
Cet article | |||
|---|---|---|---|
| description Volumetric standard, secondary reference material for alkalimetry, traceable to NIST Standard Reference Material (SRM) Certipur® Reag. Ph Eur | description certified secondary standard reference material for pH measurement; directly traceable to primary SRM from NIST/PTB pH(S) = 4.005 (25°C) Certipur® | description NIST® SRM® 84l | description BioXtra, ≥99.95% |
| technique(s) titration: suitable | technique(s) - | technique(s) titration: suitable | technique(s) - |
| agency ISO 17025, reag. Ph. Eur. | agency complies with DIN 19266 | agency suitable for SM 2310, suitable for SM 2320 | agency - |
| density 1.636 g/cm3 | density 1.636 g/cm3 | density - | density - |
| solubility 80 g/L | solubility 80 g/L | solubility - | solubility - |
| mp 295-300 °C | mp 295-300 °C | mp 295-300 °C (dec.) (lit.) | mp 295-300 °C (dec.) (lit.) |
| storage temp. 15-25°C | storage temp. 15-25°C | storage temp. - | storage temp. - |
Still not finding the right product?
Explore all of our products under Potassium hydrogen phthalate
Classe de stockage
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
Faites votre choix parmi les versions les plus récentes :
Déjà en possession de ce produit ?
Retrouvez la documentation relative aux produits que vous avez récemment achetés dans la Bibliothèque de documents.
-
How can I determine the shelf life / expiration / retest date of this product?
1 answer-
Helpful?
-
-
How is shipping temperature determined? And how is it related to the product storage temperature?
1 answer-
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?
-