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
93171
Diethylene glycol
BioUltra, ≥99.0% (GC)
Synonyme(s) :
2,2′-oxydiéthanol, 2-hydroxyéthyl éther
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A propos de cet article
grade
Molecular Biology
Quality Segment
vapor density
2.14 (vs air)
vapor pressure
0.01 mmHg ( 20 °C)
description
non-ionic
product line
BioUltra
assay
≥99.0% (GC)
form
liquid, viscous liquid
autoignition temp.
442 °F
mol wt
106.19 g/mol
expl. lim.
2-12.3 %
impurities
insoluble matter, passes filter test, ≤30 mg/kg peroxides (as H2O2)
refractive index
n20/D 1.447
pH
5.5-7.0 (25 °C, 50 mg/mL in H2O)
bp
245 °C (lit.)
mp
-10 °C, −10 °C (lit.)
solubility
H2O: 50 mg/mL at 20 °C, clear, colorless
density
1.118 g/mL at 25 °C (lit.)
anion traces
chloride (Cl-): ≤50 mg/kg, sulfate (SO42-): ≤50 mg/kg
SMILES string
OCCOCCO
cation traces
Al: ≤10 mg/kg, As: ≤0.1 mg/kg, Ba: ≤5 mg/kg, Bi: ≤5 mg/kg, Ca: ≤10 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg, Cr: ≤5 mg/kg, Cu: ≤5 mg/kg, Fe: ≤5 mg/kg, K: ≤200 mg/kg, Li: ≤5 mg/kg, Mg: ≤5 mg/kg, Mn: ≤5 mg/kg, Mo: ≤5 mg/kg, Na: ≤200 mg/kg, Ni: ≤5 mg/kg, Pb: ≤5 mg/kg, Sr: ≤5 mg/kg, Zn: ≤5 mg/kg
λ
50 mg/mL in H2O
UV absorption
λ: 260 nm Amax: ≤0.060, λ: 280 nm Amax: ≤0.030
InChI
1S/C4H10O3/c5-1-3-7-4-2-6/h5-6H,1-4H2
InChI key
MTHSVFCYNBDYFN-UHFFFAOYSA-N
Application
1 of 1
Cet article | |||
|---|---|---|---|
| assay ≥99.0% (GC) | assay ≥99.0% (GC) | assay - | assay - |
| grade Molecular Biology | grade - | grade synthesis grade | grade - |
| form liquid, viscous liquid | form viscous liquid (clear) | form - | form - |
| Quality Level 200 | Quality Level 200 | Quality Level 200 | Quality Level - |
| solubility H2O: 50 mg/mL at 20 °C, clear, colorless | solubility - | solubility - | solubility - |
| product line BioUltra | product line - | product line - | product line - |
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signalword
Warning
hcodes
Hazard Classifications
Acute Tox. 4 Oral
Classe de stockage
10 - Combustible liquids
wgk
WGK 1
flash_point_f
280.4 °F - closed cup
flash_point_c
138 °C - closed cup
ppe
Eyeshields, Faceshields, 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?
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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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