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7440-23-5

7440-23-5 structural image
Product Name: Sodium
Formula: Na
Synonyms: Sodium
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CHEMICAL AND PHYSICAL PROPERTIES

Physical Description Sodium appears as a silvery soft metal that becomes grayish white upon exposure to air. Shipped as a solid or molten liquid. Burns violently with explosions that may spatter the material. Used for making gasoline additives, electric power cable, sodium lamps, other chemicals.
Color/Form Light, silvery-white metal; body-centered cubic structure; lustrous when freshly cut; tarnishes on exposure to air, becoming dull and gray; soft at ordinary temperature, fairly hard at -20 °C
Boiling Point 1621 °F at 760 mmHg (USCG, 1999)
Melting Point 207.5 °F (USCG, 1999)
Solubility Insoluble in benzene, kerosene, naphtha
Density 0.971 at 68 °F (USCG, 1999) - Less dense than water; will float
Vapor Pressure 1.2 [mmHg]
Stability/Shelf Life TARNISHES ON EXPOSURE TO AIR, BECOMING DULL & GRAY
Autoignition Temperature 250 °F (USCG, 1999)
Decomposition VIOLENTLY DECOMPOSES WATER, FORMING SODIUM HYDROXIDE & HYDROGEN ... .
Viscosity 0.680 cP at 100 °C; 0.284 cP at 400 °C; 0.820 cP at 550 °C
Heat of Vaporization 3.874X10+6 J/kg at boiling point
Surface Tension 192 dyn/cm at melting point; 161 dyn/cm at 400 °C; 146 dyn/cm at 550 °C
Refractive Index INDEX OF REFRACTION: 4.22
Other Experimental Properties Atomic weight = 22.989770
Chemical Classes Metals -> Elements, Metallic

SAFETY INFORMATION

Signal word Danger
Pictogram(s)

Flame
Flammables
GHS02

Corrosion
Corrosives
GHS05

Exclamation Mark
Irritant
GHS07

Health Hazard
GHS08

Environment
GHS09
GHS Hazard Statements H260:Substances And Mixtures Which, In Contact With Water,Emit Flammable Gases
H304:Aspiration hazard
H314:Skin corrosion/irritation
H336:Specific target organ toxicity,single exposure; Narcotic effects
H411:Hazardous to the aquatic environment, long-term hazard
Precautionary Statement Codes P280:Wear protective gloves/protective clothing/eye protection/face protection.
P231+P232:Handle under inert gas. Protect from moisture.
P301+P330+P331:IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

COMPUTED DESCRIPTORS

Molecular Weight 22.9897693 g/mol
Hydrogen Bond Donor Count 0
Hydrogen Bond Acceptor Count 0
Exact Mass 22.98976928 g/mol
Monoisotopic Mass 22.98976928 g/mol
Topological Polar Surface Area 0 Ų
Heavy Atom Count 1
Formal Charge 0
Complexity 0
Isotope Atom Count 0
Defined Atom Stereocenter Count 0
Undefined Atom Stereocenter Count 0
Defined Bond Stereocenter Count 0
Undefined Bond Stereocenter Count 0
Covalently-Bonded Unit Count 1
Compound Is Canonicalized Yes

PRODUCT INTRODUCTION

description

Sodium appears as a silvery soft metal that becomes grayish white upon exposure to air. Shipped as a solid or molten liquid. Burns violently with explosions that may spatter the material. Used for making gasoline additives, electric power cable, sodium lamps, other chemicals.