7440-46-2

7440-46-2 structure

Name: Cesium
Chemical Name: Cesium
CAS Number: 7440-46-2
Molecular Formula: Cs
Molecular Weight: 132.90500
Catalog: Inorganic chemical industry Simple substance
Create Date: 2018-04-23 08:00:00
Modify Date: 2025-08-26 00:23:35

Name	Cesium
Synonyms	cesio Caesium MFCD00134037 UNII-1KSV9V4Y4I UN1407 EINECS 231-155-4

Density	1.873 g/mL at 25 °C(lit.)
Boiling Point	705 °C(lit.)
Melting Point	28.5 °C(lit.)
Molecular Formula	Cs
Molecular Weight	132.90500
Exact Mass	132.90500
Vapour Pressure	1 mm Hg ( 279 °C)
Stability	Flammable solid; highly flammable in powder form. Moisture-sensitive. Incompatible with chlorine, phosphorus, water.
Water Solubility	H2O: soluble

CHEMICAL IDENTIFICATION

RTECS NUMBER :: FK9225000

CHEMICAL NAME :: Cesium

CAS REGISTRY NUMBER :: 7440-46-2

LAST UPDATED :: 199710

DATA ITEMS CITED :: 4

MOLECULAR FORMULA :: Cs

MOLECULAR WEIGHT :: 132.91

WISWESSER LINE NOTATION :: .CS

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 1700 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: 85IXA4 "Structure et Activite Pharmacodyanmique des Medicaments du Systeme Nerveux Vegetatif," Bovet, D., and F. Bovet-Nitti, New York, S. Karger, 1948 Volume(issue)/page/year: -,704,1948 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X4471 No. of Facilities: 1342 (estimated) No. of Industries: 14 No. of Occupations: 20 No. of Employees: 8114 (estimated) No. of Female Employees: 1276 (estimated)

Symbol	GHS02, GHS05
Signal Word	Danger
Hazard Statements	H260-H314
Supplemental HS	Reacts violently with water.
Precautionary Statements	P223-P231 + P232-P280-P305 + P351 + P338-P370 + P378-P422
Personal Protective Equipment	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
Hazard Codes	F:Highlyflammable;C:Corrosive;
Risk Phrases	R14/15;R34
Safety Phrases	S26-S45-S43-S36/37/39-S16-S8
RIDADR	UN 3264 8/PG 3
WGK Germany	3
RTECS	FK9225000
Packaging Group	I
Hazard Class	4.3

534-17-8

~50%

7440-46-2

Literature: Gmelin Handbook: Cs: MVol.1, 2, page 13 - 16

22750-57-8

~87%

7440-46-2

Literature: Gmelin Handbook: Cs: MVol.1, 2, page 13 - 16

22750-57-8

7727-37-9

7440-46-2

Literature: Journal of the less-common metals, , vol. 115, # 2 p. 307 - 313

7789-16-4

7440-46-2

Literature: AT128310 , ; AU1797131 , ; NL27019 , ; EP323718 , ; EP323766 , ;

95674-02-5

7727-37-9

7440-46-2

Literature: Annales de Chimie (Cachan, France), , vol. 5, p. 232

12184-83-7

7440-46-2

Literature: Journal of Chemical Physics, , vol. 74, # 2 p. 1053 - 1066

95674-02-5

7440-46-2

Literature: Liebigs Annalen der Chemie, , vol. 211, p. 112 - 112 Cs: MVol.1, 3, page 16 - 18

534-17-8

7439-95-4

7440-46-2

Literature: Z. Anorg. Chem., , vol. 22, p. 158 - 158

22205-57-8

7727-37-9

1333-74-0

7440-46-2

Literature: Zeitschrift fur Anorganische und Allgemeine Chemie, , vol. 622, # 5 p. 881 - 884

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