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
1.02408
Tris(hydroxymethyl)aminomethane
volumetric standard, secondary reference material for acidimetry, traceable to NIST Standard Reference Material (SRM) Certipur® Reag. Ph Eur,Reag. USP
Synonym(s):
Tris Base, Tris(hydroxymethyl)aminomethane, 2-Amino-2-(hydroxymethyl)-1,3-propanediol, THAM, Tris base, Trometamol
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$244.00
$258.00
About This Item
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Agency
ISO 17025
reag. Ph. Eur.
reag. USP
Quality Level
vapor pressure
0.0267 hPa ( 20 °C)
product line
Certipur®
form
solid
potency
>5000 mg/kg LD50, oral (Rat)
>5000 mg/kg LD50, skin (Rat)
technique(s)
titration: suitable
pH
10.2-10.6 (20 °C, 6 g/L in H2O)
useful pH range
7-9
pKa (25 °C)
8.1
bp
219-220 °C/10 mmHg (lit.)
219-220 °C/13.3 hPa
mp
167-172 °C (lit.)
solubility
678 g/L
density
1.35 g/cm3 at 23 °C
bulk density
840 kg/m3
storage temp.
15-25°C
SMILES string
NC(CO)(CO)CO
InChI
1S/C4H11NO3/c5-4(1-6,2-7)3-8/h6-8H,1-3,5H2
InChI key
LENZDBCJOHFCAS-UHFFFAOYSA-N
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1 of 4
This Item | 1.08382 | 252859 | 1.08387 |
|---|---|---|---|
| technique(s) titration: suitable | technique(s) - | technique(s) affinity chromatography: suitable | technique(s) - |
| agency ISO 17025 | agency reag. Ph. Eur. | agency - | agency - |
| vapor pressure 0.0267 hPa ( 20 °C) | vapor pressure 0.0267 hPa ( 20 °C) | vapor pressure - | vapor pressure 0.0267 hPa ( 20 °C) |
| form solid | form solid | form crystalline | form solid |
| potency >5000 mg/kg LD50, oral (Rat) | potency >5000 mg/kg LD50, oral (Rat), >5000 mg/kg LD50, skin (Rat) | potency - | potency >5000 mg/kg LD50, oral (Rat), >5000 mg/kg LD50, skin (Rat) |
| pH 10.2-10.6 (20 °C, 6 g/L in H2O) | pH 10.2-10.6 (20 °C, 6 g/L in H2O) | pH - | pH 10.2-10.6 (20 °C, 6 g/L in H2O) |
General description
Please visit ISO certificates and Site Quality Self-Assessments to access the current certificates of accreditation.
In our effort to be more sustainable, we′re going digital with COAs-download them directly from our website. Download your certificate at http://www.sigma-aldrich.com to view certified values, including uncertainty and expiry date.
Application
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
- Qualified 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
Packaging
Legal Information
related product
Storage Class Code
11 - Combustible Solids
WGK
WGK 1
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
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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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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