The polydispersity of this product is tested on a lot-to-lot basis and is listed on the Certificate of Analysis. For example, for lot number BCCH2568, the polydispersity is 1.32 as per the Certificate of Analysis:
https://www.sigmaaldrich.com/certificates/sapfs/PROD/sap/certificate_pdfs/COFA/Q14/71578-BULK-FBCCH2568.pdf
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| Rozmiar/SKU | Dostępność | Cena netto |
|---|---|---|
250 g | Skontaktuj się z Obsługą Klienta, aby uzyskać informacje na temat dostępności | 704,00 zł |
1 kg | Skontaktuj się z Obsługą Klienta, aby uzyskać informacje na temat dostępności | 1080,00 zł |
Informacje o tej pozycji
704,00 zł
vapor density
>1 (vs air)
Quality Segment
vapor pressure
0.05 mmHg ( 20 °C)
description
non-ionic
product line
BioUltra
form
paste, viscous liquid (clear)
mol wt
470-530
impurities
insoluble matters, passes filter test, ≤0.005% peroxides (as H2O2)
pH
5.5-7.0 (25 °C, 50 mg/mL in H2O)
mp
20 °C (lit.)
solubility
H2O: 50 mg/mL at 25 °C, clear, colorless
anion traces
chloride (Cl-): ≤50 mg/kg, sulfate (SO42-): ≤50 mg/kg
cation traces
Al: ≤5 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: 0.06, λ: 280 nm Amax: 0.03
functional group
hydroxyl
SMILES string
O(CCO)C
InChI
1S/C3H8O2/c1-5-3-2-4/h4H,2-3H2,1H3
InChI key
XNWFRZJHXBZDAG-UHFFFAOYSA-N
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Ta pozycja | |||
|---|---|---|---|
| description BioUltra, 500 | description average Mn 20,000 | description average Mn 10,000 | description average Mn ~2,000 |
| form viscous liquid (clear), paste | form powder or crystals | form chunks, powder or crystals | form flakes (or pellets) |
| functional group hydroxyl | functional group - | functional group - | functional group hydroxyl |
| Quality Level 100 | Quality Level 100 | Quality Level 100 | Quality Level 200 |
| mol wt 470-530 | mol wt average Mn 20,000 | mol wt average Mn 10,000 | mol wt average Mn ~2,000 |
| impurities ≤0.005% peroxides (as H2O2), insoluble matters, passes filter test | impurities - | impurities - | impurities - |
| cation traces Al: ≤5 mg/kg, Mg: ≤5 mg/kg, Ni: ≤5 mg/kg, Cu: ≤5 mg/kg, As: ≤0.1 mg/kg, Ca: ≤10 mg/kg, Cr: ≤5 mg/kg, Bi: ≤5 mg/kg, Fe: ≤5 mg/kg, K: ≤200 mg/kg, Ba: ≤5 mg/kg, Pb: ≤5 mg/kg, Mn: ≤5 mg/kg, Sr: ≤5 mg/kg, Li: ≤5 mg/kg, Cd: ≤5 mg/kg, Zn: ≤5 mg/kg, Mo: ≤5 mg/kg, Co: ≤5 mg/kg, Na: ≤200 mg/kg | cation traces - | cation traces - | cation traces - |
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Klasa składowania
10 - Combustible liquids
Co się dzieje?
WGK 1
Temperatura zapłonu (°F)
359.6 °F - closed cup
Temperatura zapłonu (°C)
182 °C - closed cup
PPE (środki ochrony indywidualnej)
Eyeshields, Gloves
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what is the polydispersity of this mPEG?
1 answer-
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Is your product 71578 PEG MME 500 ?
1 answer-
Yes, this product is a PEG MME (poly(ethylene glycol) methyl ether) with a molecular weight of 500 (specified to be 470-530).
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