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1. www.nist.gov › nist-ps1-primary-standard-quantitative-nmr-benzoic-acidNIST PS1 Primary Standard for quantitative NMR (Benzoic Acid)

   www.nist.gov › nist-ps1-primary-standard-quantitative-nmr-benzoic-acid

   • Αποθηκευμένο αντίγραφο

   20 Οκτ 2023 · A rigorous and metrologically-sound certification of benzoic acid content was conducted by the Chemical Sciences Division that comprised coulometric assays in conjunction with multiple calibration schemes for an internal standard qNMR technique, as well as a thorough analysis of impurities.

   • Michael Nelson | NIST

     NIST Office of Weights and Measures, 2023 - Present....

   • A new realization of SI for organic chemical measurement: NIST PS1 ...

     A first-of-its-kind NIST reference material, ultra-pure and...

2. www.nist.gov › system › filesNIST PS1 - National Institute of Standards & Technology

   www.nist.gov › system › files

   16 Ιουλ 2020 · NIST PS1 . Primary Standard for quantitative NMR (Benzoic Acid) CERTIFICATE OF ANALYSIS. Purpose: This NIST Certified Reference Material is intended for use as a primary standard for quantitative nuclear magnetic resonance (qNMR) methods.

3. webbook.nist.gov › cgi › cbookBenzoic acid - NIST Chemistry WebBook

   webbook.nist.gov › cgi › cbook

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   Benzoic acid. Formula: C 7 H 6 O 2. Molecular weight: 122.1213. IUPAC Standard InChI: InChI=1S/C7H6O2/c8-7 (9)6-4-2-1-3-5-6/h1-5H, (H,8,9) IUPAC Standard InChIKey: WPYMKLBDIGXBTP-UHFFFAOYSA-N. CAS Registry Number: 65-85-0. Chemical structure: This structure is also available as a 2d Mol file or as a computed 3d SD file.

4. www.nist.gov › publications › new-realization-si-organic-chemical-measurement-nistA new realization of SI for organic chemical measurement: NIST...

   www.nist.gov › publications › new-realization-si-organic-chemical-measurement-nist

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   30 Ιουλ 2018 · A first-of-its-kind NIST reference material, ultra-pure and extensively-characterized PS1 Benzoic Acid Primary Standard for quantitative NMR serves as a definitive, primary reference (calibrant) that assuredly links the quantitative NMR (qNMR) spectroscopy technique to SI base units.

5. tsapps.nist.gov › srmext › certificatesCertificate of Analysis - NIST

   tsapps.nist.gov › srmext › certificates

   This Standard Reference Material (SRM) consists of highly purified benzoic acid (C 6H 5COOH). SRM 350b is intended for use in acidimetric standardization. A unit of SRM 350b consists of 30 g of benzoic acid. Certified Values: A NIST certified value is a value for which NIST has the highest confidence in its acc uracy in that

6. tsapps.nist.gov › srmext › certificatesCertificate of Analysis - NIST

   tsapps.nist.gov › srmext › certificates

   Certificate of Analysis. Standard Reference Material® 39j. Benzoic Acid (Calorimetric Standard) This Standard Reference Material (SRM) is intended for use in the calibration and standardization of adiabatic, isoperibol, and aneroid bomb calorimeters.

7. tsapps.nist.gov › srmext › certificatesStandard Reference Material 350c - NIST

   tsapps.nist.gov › srmext › certificates

   Benzoic Acid (Acidimetric Standard) This Standard Reference Material (SRM) consists of purified benzoic acid (C 6 H 5 COOH). SRM 350c is intended for use in acidimetric standardization. This material is NOT suitable for use as a standard in quantitative nuclear magnetic resonance spectrometry (qNMR). A unit of SRM 350c consists of 30 g of ...