Összes fotó(1)
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602892
Oxygen-18O2
99 atom % 18O, 99% (CP)
Bejelentkezésa Szervezeti és Szerződéses árazás megtekintéséhez
Összes fotó(1)
About This Item
Lineáris képlet:
18O2
CAS-szám:
Molekulatömeg:
36.00
MDL-szám:
UNSPSC kód:
12142200
PubChem Substance ID:
NACRES:
NA.12
Javasolt termékek
gőzsűrűség
1.11 (vs air)
Minőségi szint
izotóptisztaság
99 atom % 18O
Teszt
99% (CP)
Forma
gas
technika/technikák
PET imaging: suitable
bp
−183 °C (lit.)
mp
−218 °C (lit.)
tömegeltolódás
M+4
SMILES string
[18O]=[18O]
InChI
1S/O2/c1-2/i1+2,2+2
Nemzetközi kémiai azonosító kulcs
MYMOFIZGZYHOMD-XPULMUKRSA-N
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Általános leírás
Oxygen-18O2 is a naturally occurring stable isotope of oxygen. Natural abundance of 18O2 containing at least 99 atom % O-18.
Alkalmazás
18O2 isotopic labelling was employed, in conjunction with time-of-flight secondary ion mass spectrometry, to characterize and elucidate the parts of the degradation mechanisms induced by molecular oxygen. Using 18O2 as a label, it is possible to study collagen degradation with this non-reutilized label and so avoid the large errors that are introduced by the recycling of other labels.
Oxygen-18O2 can be used to study the kinetic and functional analyses in photosynthesis research. It is used to estimate the role of oxygen in the vitamin-K dependent carboxylation reaction. Also used to measure the amount of oxygen produced by the etching a quartz tube with SF6 plasma.
Kiszerelés
1 L quantity is packaged in a 450 mL carbon steel lecture bottle with brass CGA 110/180 valve. Nominal gas pressure at 21ºC is 20 psig for 1 L. This pressure is slightly above atmospheric pressure. Care must be taken when extracting this product from the cylinder.
All gas volumes are quoted at Standard Temperature and Pressure (STP) and not at Normal Temperature and Pressure (NTP). One STP Liter is 7.7% more gas than one NTP Liter.
Javasolt termékek
Brass hose adapter Z146811 or brass body mini gas regulator Z513539 is recommended for 500 mL Sure/Pac cylinder (U.S only). For 1 L cylinder, either stainless steel control valve Z146951 or Z187224 is recommended.
PTFE sealing washers GCA inlet size 180 Z146994
PTFE sealing washers CGA inlet size 110 Z146986
PTFE sealing washers GCA inlet size 180 Z146994
PTFE sealing washers CGA inlet size 110 Z146986
szabályozó
Product No.
Leírás
Árazás
tömlővég
Product No.
Leírás
Árazás
Figyelmeztetés
Danger
Figyelmeztető mondatok
Óvintézkedésre vonatkozó mondatok
Veszélyességi osztályok
Ox. Gas 1 - Press. Gas Compr. Gas
Tárolási osztály kódja
2A - Gases
WGK
WGK 3
Lobbanási pont (F)
Not applicable
Lobbanási pont (C)
Not applicable
Egyéni védőeszköz
Eyeshields, Gloves, multi-purpose combination respirator cartridge (US)
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Monitoring isotopic compositions of gaseous products (e.g., H2, O2, and CO2) by time-resolved isotope-ratio membrane-inlet mass spectrometry (TR-IR-MIMS) is widely used for kinetic and functional analyses in photosynthesis research. In particular, in combination with isotopic labeling, TR-MIMS became an essential
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