Cesium

Names

[ CAS No. ]:
7440-46-2

[ Name ]:
Cesium

[Synonym ]:
cesio
Caesium
MFCD00134037
UNII-1KSV9V4Y4I
UN1407
EINECS 231-155-4

Chemical & Physical Properties

[ 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

MSDS

Click to get detail MSDS

Toxicological Information

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)

Safety Information

[ 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

Synthetic Route

Click to get detail synthetic route

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