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Mettler-Toledo Calibration substance ME 18555, Benzoic acid

analytical standard, for the calibration of the thermosystem 900, traceable to primary standards (LGC)

Benzoic acid
Linear Formula:
CAS Number:
Molecular Weight:
EC Number:
MDL number:
PubChem Substance ID:

Quality Level


analytical standard
for the calibration of the thermosystem 900

vapor density

4.21 (vs air)

vapor pressure

10 mmHg ( 132 °C)

autoignition temp.

1061 °F


traceable to primary standards (LGC)

shelf life

limited shelf life, expiry date on the certificate and label


249 °C (lit.)


121-125 °C (lit.)


food and beverages



SMILES string




InChI key


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General description

Mettler-Toledo calibration standard ME 18555, benzoic acid (121-125 °C) is suitable for the regular calibration of Mettler-Toledo melting point instrument. Its melting point value is an average of 6 to 12 measurements with a Mettler-Toledo MP90 excellence melting point instrument that is calibrated against primary standards.


This Mettler-Toledo melting point standard is used for the calibration of the melting point instrument Mettler FP900 thermosystem.

Features and Benefits

  • Melting point calibration standard traceable to a primary standard from LGC, London
  • Melting point evaluation performed in both thermodynamic and pharmacopeia modes
  • Available with certificates of analysis and safety data sheet
  • A product of analytical standard grade to help meet the QC/QA requirements of melting point analysis


CorrosionHealth hazard

Signal Word


Hazard Statements

Hazard Classifications

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

Target Organs


Storage Class Code

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



Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

  1. Which document(s) contains shelf-life or expiration date information for a given product?

    If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.

  2. How do I get lot-specific information or a Certificate of Analysis?

    The lot specific COA document can be found by entering the lot number above under the "Documents" section.

  3. How do I find price and availability?

    There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers.

  4. What is the Department of Transportation shipping information for this product?

    Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product. 

  5. Are the Mettler-Toledo Calibration melting standards already dried and pulverized, ready to use out of the bottle?

    The answer is yes. All melting point standards are ground to a fine powder, tested as melting point standards and ready to use.

  6. My question is not addressed here, how can I contact Technical Service for assistance?

    Ask a Scientist here.

Davidson M.P, et al.
Antimicrobials in Food, (3) (2005)
Final report on the safety assessment of Benzyl Alcohol, Benzoic Acid, and Sodium Benzoate
International Journal of Toxicology, 20, 23-50 (2001)
S Nacht et al.
Journal of the American Academy of Dermatology, 4(1), 31-37 (1981-01-01)
The transepidermal penetration and metabolic disposition of 14C-benzoyl peroxide were assessed in vitro (excised human skin) and in vivo (rhesus monkey). In vitro, the benzoyl peroxide penetrated into the skin, through the stratum corneum or the follicular openings, or both
Wanchun Xiang et al.
ChemSusChem, 6(2), 256-260 (2013-01-25)
Sensing the sun: Incorporation of a cyanomethyl benzoic acid electron acceptor into donor-π-acceptor sensitizers for dye-sensitized-solar cell is shown to lead to devices with improved conversion efficiency when compared with more widely used cyanoacetic acid acceptor.
Renbo Wei et al.
Macromolecular rapid communications, 34(4), 330-334 (2013-01-03)
A new approach is developed to fabricate highly oriented mono-domain LCE nano/microstructures through micro-molding in capillaries. Gratings and microwires as two typical examples are fabricated and characterized by polarizing optical microscopy, optical microscopy, and scanning electron microscopy. The gratings with


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