The certificate of analysis does not provide separate melting point values for meniscus formation and complete liquefaction for this product. Melting point is reported as a single value or range in thermodynamic mode, specifically 47–49 °C (±0.3 °C). Please see the link below to access a lot-specific Certificate of Analysis: https://www.sigmaaldrich.com/product/sial/50296#product-documentation
50296
Melting point standard 47-49°C
analytical standard
Synonym(s):
Benzophenone, Diphenyl ketone, Diphenylmethanone, NSC 8077
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| Size/SKU | Availability | Price |
|---|---|---|
1 g | Available to ship TODAY | $28.50 |
5 g | Available to ship TODAY | $111.00 |
About This Item
Linear Formula:
(C6H5)2CO
CAS Number:
Molecular Weight:
182.22
UNSPSC Code:
20121904
NACRES:
NA.24
PubChem Substance ID:
EC Number:
204-337-6
Beilstein/REAXYS Number:
1238185
MDL number:
$28.50
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grade
analytical standard
Quality Segment
vapor pressure
1 mmHg ( 108 °C)
shelf life
limited shelf life, expiry date on the label
bp
305 °C (lit.)
mp
47-49 °C (±0.3°C), 47-51 °C (lit.)
application(s)
cosmetics
food and beverages
pharmaceutical
format
neat
SMILES string
O=C(C1=CC=CC=C1)C2=CC=CC=C2
InChI
1S/C13H10O/c14-13(11-7-3-1-4-8-11)12-9-5-2-6-10-12/h1-10H
InChI key
RWCCWEUUXYIKHB-UHFFFAOYSA-N
General description
Analytical standards such as melting point standard 47-49 °C, benzophenone facilitate the determination of identity or purity of chemical compounds. The mp value is measured as an average of 6 to 12 measurements with a Büchi B-545 instrument that is calibrated against primary standards. The melting point is determined by Capillary method, as described in European Pharmacopeia (2.2.14.).
This substance is listed on the positive list of the EU regulation 10/2011 for plastics intended to come into contact with food. Find all available reference materials for compounds listed in 10/2011 here
Application
Benzophenone melting point standard 47-49 °C is a melting point calibration standard for use in physicochemical characterization.
Features and Benefits
- Traceable to primary standards from LGC, London
- Grade: Analytical Standard
- Melting point standardized in the thermodynamic mode of analysis
- Standard deviation up to ± 0.3 °C
- Available with certificates of analysis and safety data sheet
1 of 1
This Item | |||
|---|---|---|---|
| description analytical standard | description European Pharmacopoeia (EP) Reference Standard | description purified by sublimation, ≥99% | description ReagentPlus®, 99% |
| application(s) cosmetics | application(s) pharmaceutical (small molecule) | application(s) - | application(s) - |
| format neat | format neat | format - | format - |
| Quality Level 100 | Quality Level - | Quality Level 200 | Quality Level 200 |
| grade analytical standard | grade pharmaceutical primary standard | grade - | grade - |
| shelf life limited shelf life, expiry date on the label | shelf life - | shelf life - | shelf life - |
| mp 47-51 °C (lit.), 47-49 °C (±0.3°C) | mp 47-51 °C (lit.) | mp 47-51 °C (lit.) | mp 47-51 °C (lit.) |
Signal Word
Danger
Hazard Codes
Precautionary Statements
Hazard Classifications
Aquatic Chronic 3 - Carc. 1B - STOT RE 2 Oral
Target Organs
Liver,Kidney
Storage Class
6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
Flash Point (°F)
280.4 °F - closed cup
Flash Point (°C)
138 °C - closed cup
PPE (personal protective equipment)
dust mask type N95 (US), Eyeshields, Gloves
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Melting point value of both meniscus formation and complete liquefaction are stated on certificate of analysis?
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How can I determine the shelf life / expiration / retest date of this product?
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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.pdfHelpful?
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How is shipping temperature determined? And how is it related to the product storage temperature?
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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
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