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.pdf
01422
Melting point standard 79-81°C
analytical standard
Synonym(s):
Naphthalene
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| Pack Size | SKU | Availability | Price |
|---|
About This Item
grade
analytical standard
Quality Level
vapor density
4.4 (vs air)
vapor pressure
0.03 mmHg ( 25 °C)
autoignition temp.
978 °F
shelf life
limited shelf life, expiry date on the label
expl. lim.
5.9 %
bp
218 °C (lit.)
mp
79-81 °C (±0.3°C), 80-82 °C (lit.)
application(s)
food and beverages
pharmaceutical
SMILES string
c1ccc2ccccc2c1
InChI
1S/C10H8/c1-2-6-10-8-4-3-7-9(10)5-1/h1-8H
InChI key
UFWIBTONFRDIAS-UHFFFAOYSA-N
General description
Application
Additionally, this mp standard is also used as a temperature calibration standard in thermal studies.
Features and Benefits
- Melting point calibration standard traceable to primary standards (LGC, London)
- Grade: Analytical Standard
- Standard deviation up to ± 0.3 °C
- Provided with certificates of analysis and safety data sheet
1 of 1
This Item | |||
|---|---|---|---|
| grade analytical standard | grade certified reference material, pharmaceutical secondary standard | grade certified reference material, TraceCERT® | grade certified reference material, TraceCERT® |
| application(s) food and beverages | application(s) pharmaceutical (small molecule) | application(s) cleaning products | application(s) agriculture |
| shelf life limited shelf life, expiry date on the label | shelf life - | shelf life limited shelf life, expiry date on the label | shelf life - |
| autoignition temp. 978 °F | autoignition temp. 978 °F | autoignition temp. 978 °F | autoignition temp. - |
| bp 218 °C (lit.) | bp 218 °C (lit.) | bp 218 °C (lit.) | bp - |
| vapor density 4.4 (vs air) | vapor density 4.4 (vs air) | vapor density 4.4 (vs air) | vapor density - |
signalword
Warning
hcodes
Hazard Classifications
Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 2 - Flam. Sol. 2
Storage Class
4.1B - Flammable solid hazardous materials
wgk
WGK 3
flash_point_f
173.3 °F - closed cup
flash_point_c
78.5 °C - closed cup
ppe
Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges
Regulatory Listings
Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.
91-20-3
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Global Trade Item Number
| SKU | GTIN |
|---|---|
| 177261-25G | 04061833544839 |
| 936669-1G | 04065272161022 |
| 177261-1G | 04061838753199 |
| 177261-10G | 04061838753182 |
| 177261-250G | 04061833472729 |
| 01422-250MG | 04061838609076 |
| 01422-1G | 04061838609052 |
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How can I determine the shelf life / expiration / retest date of this product?
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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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