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1.02401

Supelco

Benzoic acid

volumetric standard, secondary reference material for alkalimetry, traceable to NIST Standard Reference Material (SRM) Certipur® Reag. Ph Eur,Reag. USP

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Synonym(s):
Benzoic acid, Phenylformic acid, Benzene carboxylic acid
Empirical Formula (Hill Notation):
C7H6O2
CAS Number:
65-85-0
Molecular Weight:
122.12
UNSPSC Code:
41116107
EC Index Number:
200-618-2
NACRES:
NA.24

Agency

ISO 17025
reag. Ph. Eur.
reag. USP

Quality Level

300

vapor pressure

0.001 hPa ( 20 °C)

form

solid

autoignition temp.

570 °C

potency

1700 mg/kg LD50, oral (Rat)
>5000 mg/kg LD50, skin (Rabbit)

technique(s)

titration: suitable

pH

2.5-3.5 (20 °C in H2O, saturated solution)

bp

249 °C/1013 hPa

mp

121-123 °C

transition temp

flash point 121 °C

solubility

2.9 g/L

density

1.321 g/cm3 at 20 °C

bulk density

500 kg/m3

storage temp.

15-25°C

InChI

1S/C7H6O2/c8-7(9)6-4-2-1-3-5-6/h1-5H,(H,8,9)

InChI key

WPYMKLBDIGXBTP-UHFFFAOYSA-N

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General description

Benzoic acid is a volumetric standard produced under rigorous conditions and qualified 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.

Application

It is used as a certified reference material (CRM) for titer determinations in alkalimetric titrations, following USP and Ph. Eur.

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
  • Measured in a DIN EN ISO/IEC 17025 accredited laboratory
  • In accordance with the chapter reagents of USP and Ph. Eur
  • High-quality offering accurate titer determinations
  • Accompanied by a certificate of analysis (CoA)

Packaging

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

Legal Information

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

Pictograms

CorrosionHealth hazard
GHS05,GHS08

Signal Word

Danger

Hazard Statements

H315 - H318 - H372

Hazard Classifications

Eye Dam. 1 - Skin Irrit. 2 - STOT RE 1 Inhalation

Target Organs

Lungs

Storage Class Code

6.1C - Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 1

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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Articles

Importance of Volumetric Solution Standardization

The titer determination or standardization of a titration solution is essential for accurate and reliable titration results.

Titration 4.0

SmartChemicals enable wireless CoA data transfer, reducing human error in titration experiments.

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