Name: Potassium hydrogen phthalate
Brand: MM

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About This Item

실험식(Hill 표기법):

C₈H₅KO₄

CAS Number:

877-24-7

Molecular Weight:

204.22

MDL number:

MFCD00013070

UNSPSC 코드:

41116107

EC 인덱스 번호:

212-889-4

NACRES:

NA.24

기술 서비스

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도움 문의

Agency

ISO 17025
reag. Ph. Eur.

Quality Level

300

양식

solid

효능

>3200 mg/kg LD₅₀, oral (Rat)

기술

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

벌크 밀도

900 kg/m³

저장 온도

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

일반 설명

Potassium hydrogen phthalate, also known as KHP, is a volumetric standard manufactured under stringent conditions and measured with the highest possible precision. Its mass fraction is determined by potentiometric titration, and it is qualified in a DIN EN ISO/IEC 17025 accredited laboratory.

Please visit ISO certificates and Site Quality Self-Assessments to access the current certificates of accreditation.

Download your certificate at http://www.sigma-aldrich.com to view certified values, including uncertainty and expiry date.

애플리케이션

It finds its use as a certified reference material (CRM) for the standardization of volumetric solutions in alkalimetric titrations, according to Ph. Eur. It is also used to prepare a standard solution in determination of COD.

특징 및 장점

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
Accompanied by a certificate of analysis (CoA)

포장

SKU-pack size numbers ending with a "3" are SmartChemicals with an RFID tag on the label for seamless data transfer to the instrument, e.g. xxxxxx1003 or xxxxxxx 4003. More information on www.sigmaaldrich.com/SmartChemicals

법적 정보

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

Storage Class Code

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

시험 성적서(COA)

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