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20816-12-0 molecular structure
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tetraoxoosmium

ChemBase ID: 128756
Molecular Formular: O4Os
Molecular Mass: 254.2276
Monoisotopic Mass: 255.94113848
SMILES and InChIs

SMILES:
O=[Os](=O)(=O)=O
Canonical SMILES:
O=[Os](=O)(=O)=O
InChI:
InChI=1S/4O.Os
InChIKey:
VUVGYHUDAICLFK-UHFFFAOYSA-N

Cite this record

CBID:128756 http://www.chembase.cn/molecule-128756.html

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NAMES AND DATABASE IDS

NAMES AND DATABASE IDS

Names Database IDs
IUPAC name
tetraoxoosmium
IUPAC Systematic name
Tetraoxoosmium
IUPAC Traditional name
osmium tetroxide
Synonyms
‘Osmic acid’
Osmium(VIII)-oxide
Osmium tetroxide solution
Osmium tetroxide, ~1 wt. % on poly(4-vinylpyridine)
Osmium(VIII) oxide on poly(4-vinylpyridine)
Osmium tetroxide on poly(4-vinylpyridine)
Osmium oxide
Osmium tetroxide, microencapsulated
Os EnCat® 40
Osmiumtetroxide
Osmium tetroxide
Osmium tetroxide
四氧化锇 溶液
四氧化锇,负载于 ~1%(重量百分比)聚(4-乙烯吡啶)
聚(4-乙烯吡啶) 负载氧化锇(VIII)
聚(4-乙烯吡啶) 负载四氧化锇
微胶囊包封四氧化锇
“锇酸"
氧化锇(VIII)
四氧化锇
CAS Number
20816-12-0
EC Number
244-058-7
MDL Number
MFCD00011150
PubChem SID
24862478
162223062
24866110
24886855
24851991
24884370
24852535
24898018
24886856
24855156
PubChem CID
30318
Chemspider ID
28158
MeSH Name
Osmium+tetroxide
Wikipedia Title
Osmium_tetroxide

CALCULATED PROPERTIES

CALCULATED PROPERTIES

JChem
H Acceptors H Donor
LogD (pH = 5.5) -1.4056  LogD (pH = 7.4) -1.4056 
Log P -1.4056  Molar Refractivity 5.7716 cm3
Polarizability 10.607964 Å3 Polar Surface Area 68.28 Å2
Rotatable Bonds Lipinski's Rule of Five true 

PROPERTIES

PROPERTIES

Physical Property Safety Information Product Information Bioassay(PubChem)
Solubility
375 g/100 mL (CCl4)
soluble in most organic solvents, ammonium hydroxide, phosphorus oxychloride
expand Show data source
5.70 g/100 mL (10 °C)
6.23 g/100 mL (25 °C) in water
expand Show data source
Apperance
crystalline expand Show data source
powder expand Show data source
white volatile solid expand Show data source
Melting Point
39.5-41 °C(lit.) expand Show data source
40.25 °C expand Show data source
41-44 °C expand Show data source
Boiling Point
129.7 °C expand Show data source
130 °C(lit.) expand Show data source
Flash Point
39.2 °F expand Show data source
4 °C expand Show data source
Density
0.81 g/mL at 20 °C expand Show data source
0.811 g/mL at 25 °C expand Show data source
1.0 g/mL at 20 °C expand Show data source
1.04 g/mL at 25 °C expand Show data source
4.9 g/cm3 expand Show data source
Vapor Pressure
1.23 psi ( 20 °C) expand Show data source
3.55 psi ( 55 °C) expand Show data source
5.42 psi ( 20 °C) expand Show data source
6.76 psi ( 55 °C) expand Show data source
7 mmHg ( 20 °C) expand Show data source
Vapor Density
8.8 (vs air) expand Show data source
Odor
acrid, chlorine-like expand Show data source
RTECS
RN1140000 expand Show data source
European Hazard Symbols
Corrosive (C) expand Show data source
Flammable Flammable (F) expand Show data source
Oxidising Oxidising (O) expand Show data source
Toxic Toxic (T) expand Show data source
Highly toxic Highly toxic (T+) expand Show data source
Very toxic (T+) expand Show data source
UN Number
2471 expand Show data source
3175 expand Show data source
3286 expand Show data source
3287 expand Show data source
UN 2471 expand Show data source
MSDS Link
Download expand Show data source
Download expand Show data source
Download expand Show data source
Download expand Show data source
Download expand Show data source
Download expand Show data source
Download expand Show data source
Download expand Show data source
Download expand Show data source
Download expand Show data source
Download expand Show data source
Download expand Show data source
German water hazard class
1 expand Show data source
3 expand Show data source
Hazard Class
3 expand Show data source
4.1 expand Show data source
6.1 expand Show data source
Packing Group
1 expand Show data source
2 expand Show data source
Risk Statements
11-23/24/25-36/37 expand Show data source
23/24/25 expand Show data source
26/27/28-34 expand Show data source
26/27/28-36/38 expand Show data source
8-23/24/25-40 expand Show data source
R26/27/28, R34 expand Show data source
Safety Statements
16-26-36/37-45 expand Show data source
17-26-27-36/37/39-45 expand Show data source
26-28-36/37-45 expand Show data source
26-45-7/9 expand Show data source
36/37-45 expand Show data source
7/9-26-45 expand Show data source
S1/2, S7/9, S26, S45 expand Show data source
EU Index
076-001-00-5 expand Show data source
GHS Pictograms
GHS02 expand Show data source
GHS05 expand Show data source
GHS06 expand Show data source
GHS08 expand Show data source
GHS Signal Word
Danger expand Show data source
NFPA704
NFPA 704 diagram
0
4
1
OX
expand Show data source
GHS Hazard statements
H225-H301-H315-H319-H330-H334-H335 expand Show data source
H300-H310-H314-H330-H334 expand Show data source
H301-H311-H314-H330-H334 expand Show data source
H301-H311-H331-H351 expand Show data source
H301-H312-H315-H318-H330-H334 expand Show data source
GHS Precautionary statements
P210-P260-P284-P301 + P310-P305 + P351 + P338-P310 expand Show data source
P260-P264-P280-P284-P301 + P310-P302 + P350 expand Show data source
P260-P280-P284-P301 + P310-P305 + P351 + P338-P310 expand Show data source
P261-P280-P301 + P310-P311 expand Show data source
Personal Protective Equipment
Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P2 (EN 143) respirator cartridges, type P3 (EN 143) respirator cartridges expand Show data source
Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges expand Show data source
Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges expand Show data source
Faceshields, full-face respirator (US), Gloves, Goggles, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter expand Show data source
RID/ADR
UN 2471 6.1/PG 1 expand Show data source
UN 3175 4.1/PG 2 expand Show data source
UN 3286 3/PG 2 expand Show data source
UN 3287 6.1/PG 2 expand Show data source
Storage Temperature
2-8°C expand Show data source
Purity
≥98.0% expand Show data source
≥99.9% expand Show data source
99.8% expand Show data source
Concentration
2% in H2O expand Show data source
2.5 wt. % in tert-butanol expand Show data source
2.5% in tert-butanol expand Show data source
4 wt. % in H2O expand Show data source
4% in H2O expand Show data source
Grade
ACS reagent expand Show data source
for electron microscopy expand Show data source
puriss. expand Show data source
ReagentPlus® expand Show data source
Impurities
≤0.05% non volatile impurities expand Show data source
≤0.1% non volatile impurities expand Show data source
Contains
tert-butyl hydroperoxide as stabilizer expand Show data source
Extent of Labeling
0.3 mmol/g Os loading expand Show data source
Clarity of solution
passes test expand Show data source
Linear Formula
OsO4 expand Show data source
Identification
passes test expand Show data source
Empirical Formula (Hill Notation)
OsO4 expand Show data source

DETAILS

DETAILS

Wikipedia Wikipedia Sigma Aldrich Sigma Aldrich
Sigma Aldrich - O5500 external link
包装
1 g in ampule
250 mg in ampule
Sigma Aldrich - 75632 external link
Other Notes
Fixativ1
Sigma Aldrich - 365092 external link
Packaging
5, 25 g in glass bottle
Sigma Aldrich - 658685 external link
Features and Benefits
Encapsulated OsO4 catalyst offers safety and handling advantages over conventional OsO4.1
Packaging
1, 5 g in glass bottle
500 mg in glass bottle
Legal Information
Os EnCat® technology.
EnCat is a registered trademark of Reaxa Ltd.
Sigma Aldrich - 75630 external link
Other Notes
Review1
Sigma Aldrich - 201030 external link
Application
Widely used oxidizer for visualizing cells in microscopy. Promotes oxidative cleavage of graphene layers in carbon nanotubes creating the possibility of opening ′windows′ in fullerene cages.1
Packaging
1 g in ampule
250, 500 mg in ampule
Packaged in ampules
Legal Information
ReagentPlus is a registered trademark of Sigma-Aldrich Co. LLC
Sigma Aldrich - 419494 external link
Packaging
1 g in ampule
250 mg in ampule
Packaged in ampules
Sigma Aldrich - 208868 external link
Packaging
1, 5, 25 mL in glass bottle

REFERENCES

REFERENCES

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PATENTS

PATENTS

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INTERNET

INTERNET

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