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Oxygen

Names

[ CAS No. ]:
7782-44-7

[ Name ]:
Oxygen

[Synonym ]:
oxygen-16
peroxide radical
Oxygen
hyperoxia
hydroperoxide radical
oxygengas
hydroperoxo radical
MFCD00011434
oxigeno
hydroperoxyl radical
lox
oxygene
perhydroxyl radical
pureoxygen
hydroperoxy radical
EINECS 231-956-9
Dioxygen
peroxyl radical

Chemical & Physical Properties

[ Density]:
1.429(0℃)

[ Boiling Point ]:
−183 °C(lit.)

[ Melting Point ]:
−218 °C(lit.)

[ Molecular Formula ]:
O2

[ Molecular Weight ]:
31.99880

[ Flash Point ]:
none

[ Exact Mass ]:
31.98980

[ PSA ]:
34.14000

[ LogP ]:
0.06700

[ Vapour density ]:
1.11 (vs air)

[ Vapour Pressure ]:
3.27E-25mmHg at 25°C

[ Index of Refraction ]:
1.776

[ Stability ]:
Stable. Vigorously supports combustion. Incompatible with phosphorus, organic materials, many powdered metals.

MSDS

Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
RS2060000
CHEMICAL NAME :
Oxygen
CAS REGISTRY NUMBER :
7782-44-7
LAST UPDATED :
199710
DATA ITEMS CITED :
23
MOLECULAR FORMULA :
O2
MOLECULAR WEIGHT :
32.00
WISWESSER LINE NOTATION :
.O2

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Human
DOSE/DURATION :
100 pph/14H
TOXIC EFFECTS :
Lungs, Thorax, or Respiration - cough Lungs, Thorax, or Respiration - other changes
TYPE OF TEST :
TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE :
Inhalation
DOSE :
12 pph/10M
SEX/DURATION :
female 26-39 week(s) after conception
TOXIC EFFECTS :
Reproductive - Specific Developmental Abnormalities - cardiovascular (circulatory) system
TYPE OF TEST :
TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE :
Inhalation
DOSE :
10 pph/12H
SEX/DURATION :
female 22 day(s) after conception
TOXIC EFFECTS :
Reproductive - Specific Developmental Abnormalities - respiratory system
TYPE OF TEST :
TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE :
Inhalation
DOSE :
10 pph/9H
SEX/DURATION :
female 22 day(s) after conception
TOXIC EFFECTS :
Reproductive - Specific Developmental Abnormalities - respiratory system Reproductive - Effects on Newborn - physical
TYPE OF TEST :
TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE :
Inhalation
DOSE :
10 pph/24H
SEX/DURATION :
female 8 day(s) after conception
TOXIC EFFECTS :
Reproductive - Specific Developmental Abnormalities - skin and skin appendages

MUTATION DATA

TYPE OF TEST :
Cytogenetic analysis
TEST SYSTEM :
Bird - chicken Embryo
DOSE/DURATION :
80 pph
REFERENCE :
ACATA5 Acta Anatomica. (S. Karger Pub., Inc., 79 Fifth Ave., New York, NY 10003) V.1- 1945- Volume(issue)/page/year: 94,520,1976 *** REVIEWS *** TOXICOLOGY REVIEW FEPRA7 Federation Proceedings, Federation of American Societies for Experimental Biology. (Bethesda, MD) V.1-46, 1942-87. Volume(issue)/page/year: 35,89,1976 TOXICOLOGY REVIEW CEFYAD Ceskoslovenska Fysiologie. (Academia, Vodickova 40, 112 29 Prague 1, Czechoslovakia) V.1- 1952- Volume(issue)/page/year: 23,513,1974 TOXICOLOGY REVIEW PTPBD7 Pharmacology and Therapeutics, Part B: General and Systematic Pharmacology. (Oxford, UK) V.1-3, 1975-78. For publisher information, see PHTHDT. Volume(issue)/page/year: 1,731,1975 TOXICOLOGY REVIEW 32RWA4 "Free Radicals in Biology," Pryor, W.A., ed., V.1- , New York, Academic Press, Inc., 1976- Volume(issue)/page/year: 1,239,1976 TOXICOLOGY REVIEW ANESAV Anesthesiology. (Lippincott/Harper, Journal Fulfillment Dept., 2350 Virginia Ave., Hagerstown, MD 21740) V.1- 1940- Volume(issue)/page/year: 37,210,1972 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - M0006 No. of Facilities: 917 (estimated) No. of Industries: 23 No. of Occupations: 33 No. of Employees: 9677 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - M0006 No. of Facilities: 7113 (estimated) No. of Industries: 81 No. of Occupations: 90 No. of Employees: 189129 (estimated) No. of Female Employees: 87473 (estimated)

Safety Information

[ Hazard Codes ]:
O

[ Risk Phrases ]:
R8

[ Safety Phrases ]:
S17-S45-S36/37/39-S26-S61

[ RIDADR ]:
UN 1072 2.2

[ WGK Germany ]:
-

[ RTECS ]:
RS2060000

[ Hazard Class ]:
2.2

[ HS Code ]:
2804400000

Synthetic Route

Precursor & DownStream

Customs

[ HS Code ]: 2804400000


Related Compounds

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