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
90279
Triethanolamine
≥99.0% (GC)
Synonim(y):
2,2′,2′′-Nitrilotriethanol, Tris(2-hydroxyethyl)amine
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InChI key
GSEJCLTVZPLZKY-UHFFFAOYSA-N
InChI
1S/C6H15NO3/c8-4-1-7(2-5-9)3-6-10/h8-10H,1-6H2
SMILES string
OCCN(CCO)CCO
vapor density
5.14 (vs air)
vapor pressure
0.01 mmHg ( 20 °C)
assay
≥99.0% (GC)
form
liquid, viscous liquid
autoignition temp.
600 °F
expl. lim.
8.5 %
technique(s)
GC/GC: suitable
impurities
≤0.1% ethanolamine (GC), ≤0.2% water, ≤0.3% diethanolamine (GC)
Quality Level
refractive index
n20/D 1.485 (lit.)
pH
10.5-11.5 (25 °C, 149 g/L)
useful pH range
7.3-8.3
pKa (25 °C)
7.8
bp
190-193 °C/5 mmHg (lit.)
mp
17.9-21 °C (lit.)
solubility
H2O: 1 M, clear, colorless
density
1.124 g/mL at 25 °C (lit.)
anion traces
chloride (Cl-): ≤5 mg/kg, sulfate (SO42-): ≤20 mg/kg
cation traces
Ca: ≤5 mg/kg, Cd: ≤1 mg/kg, Co: ≤1 mg/kg, Cr: ≤1 mg/kg, Cu: ≤1 mg/kg, Fe: ≤1 mg/kg, K: ≤20 mg/kg, Mg: ≤1 mg/kg, Mn: ≤1 mg/kg, Ni: ≤1 mg/kg, Pb: ≤1 mg/kg, Zn: ≤1 mg/kg
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Ta pozycja | |||
|---|---|---|---|
| Quality Level 200 | Quality Level 200 | Quality Level 200 | Quality Level 200 |
| assay ≥99.0% (GC) | assay ≥99% (GC) | assay 98% | assay ≥99.5% (GC) |
| solubility H2O: 1 M, clear, colorless | solubility soluble 149 g/L at 20 °C (completely) | solubility soluble 149 g/L at 20 °C (completely) | solubility H2O: 1 M at 20 °C, clear, colorless |
| form liquid, viscous liquid | form viscous liquid | form viscous liquid | form liquid, viscous liquid |
| impurities ≤0.1% ethanolamine (GC), ≤0.3% diethanolamine (GC), ≤0.2% water | impurities ≤0.0001% heavy metals (as Pb), ≤0.1% ethanolamine, ≤0.1% water (Karl Fischer), ≤0.5% diethanolamine (GC) | impurities - | impurities insoluble matter, passes filter test, ≤0.1% ethanolamine (GC), ≤0.2% water, ≤0.3% diethanolamine (GC) |
| pH 10.5-11.5 (25 °C, 149 g/L) | pH - | pH - | pH 10.5-11.5 (25 °C, 1 M in H2O) |
General description
Application
- as a component of the acetylation working solution
- in the preparation of polyethylene glycol (PEG) hydrogels
- as a constituent of CO2/O2 specificity (SC/O) assay buffer
Klasa składowania
10 - Combustible liquids
wgk
WGK 1
flash_point_f
354.2 °F - closed cup
flash_point_c
179 °C - closed cup
ppe
Eyeshields, Gloves, type ABEK (EN14387) respirator filter
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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?
1 answer-
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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What is the concentration of 90279?
1 answer-
The chemical Triethanolamine 90279, the molarity of this chemical is 7.4-7.5M, based on the purity of 99%-100%, respectively.
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