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| CAS No.: | 11135-81-2 |
|---|---|
| Name: | POTASSIUM SODIUM ALLOY |
| Molecular Structure: | |
 |
|
| Formula: | KNa |
| Molecular Weight: | 62.09 |
| Synonyms: | SODIUM-POTASSIUM ALLOY;POTASSIUM SODIUM ALLOY;Potassiumsodiumalloy78:22(99.95%);potassiumsodiumalloys;sodiumpotassiumalloy,nak;SODIUM-POTASSIUM ALLOY (22% NA, 78% K);SODIUM-POTASSIUM ALLOY (44% NA, 56% K);Potassiumsodiumalloy78:22 |
| Density: | 0.87 g/mL at 25 °C |
| Melting Point: | 6,8°C |
| Boiling Point: | 813°C |
| Hazard Symbols: |
 
|
| Risk Codes: | 11-14/15-34-15 |
| Safety: |
A low-melting alloy of Na and K. Its toxicity is due to either Na or K alone. Corrosive to the eyes, skin, and mucous membranes. Upon contact with moisture it reacts violently to evolve H2; much heat; and a highly caustic residue of NaOH or KOH. Oxidation forms Na2O and K2O, which are powerful caustics. A dangerous fire and explosion hazard. Violent or explosive reaction with O2, water, moisture, steam, halogens, oxidizers, acids or acid fumes, giving off much heat, hydrogen, toxic and corrosive fumes, often spattering either red-hot particles or actually flaming particles. A severe explosion hazard, will react explosively under the appropriate conditions with moisture, acids, acid fumes, solid CO2, carbon disulfide, halocarbons (e.g., CH3Cl, carbon tetrachloride, chloroform, bromoform, 1,1,1-trichloroethane, 1,1,2-trichlorotrifluoroethane, tetrachloroethane, CH2Cl2, CH2I2), ammonium sulfate + NH4 + NO3, HgO, metal halides (e.g., silver halides, zinc chloride, iron(III) chloride), metal oxides (e.g., silver oxide, mercury oxide), nitrogen-containing explosives (e.g., ammonium nitrate, ammonium sulfate, picric acid, nitrobenzene), oxalyl bromide, oxalyl chloride, pentachloroethane, K oxides, KO2, Si, NaHCO3, polytetrafluoroethylene. Reacts vigorously with oxidizing materials. To fight fire, use G-1 powder, dry sodium chloride, dry sodium carbonate, dry calcium carbonate, dry sand, resin-coated sodium chloride, or dry soda ash. Never use water, graphite, carbon dioxide, halocarbons, or foam. Dangerous; when heated it emits highly toxic fumes of Na2O and K2O. Used as a liquid coolant for nuclear reactor cores. See also SODIUM and POTASSIUM. |
| PSA: | 0.00000 |
| LogP: | 0.22500 |
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Chemistry
Molecular Formula: KNa
Molecular Formula: 62.09g/mol
Product Categories: Alkali MetalsMaterials Science;Alloys;Metal and Ceramic Science;Reduction;Synthetic Reagents;AlloysEssential Chemicals;Adsorbents, Filter Aids and Drying Agents;Other Drying Agents
Safety Profile
Hazard Codes: 
F,
C
Risk Statements: 11-14/15-34-15
R11:Highly flammable.
R14 :Reacts violently with water.
R15:Contact with water liberates extremely flammable gases.
R34:Causes burns.
Safety Statements: 16-26-27-36/37/39-45-43
S16:Keep away from sources of ignition.
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S27:Take off immediately all contaminated clothing.
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection.
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
S43:In case of fire use ... (there follows the type of fire-fighting equipment to be used.)
RIDADR: UN 1422 4.3/PG 1
WGK Germany: 1
HazardClass: 4.3
PackingGroup: I
A low-melting alloy of Na and K. Its toxicity is due to either Na or K alone. Corrosive to the eyes, skin, and mucous membranes. Upon contact with moisture it reacts violently to evolve H2; much heat; and a highly caustic residue of NaOH or KOH. Oxidation forms Na2O and K2O, which are powerful caustics.
A dangerous fire and explosion hazard. Violent or explosive reaction with O2, water, moisture, steam, halogens, oxidizers, acids or acid fumes, giving off much heat, hydrogen, toxic and corrosive fumes, often spattering either red-hot particles or actually flaming particles. A severe explosion hazard, will react explosively under the appropriate conditions with moisture, acids, acid fumes, solid CO2, carbon disulfide, halocarbons (e.g., CH3Cl, carbon tetrachloride, chloroform, bromoform, 1,1,1-trichloroethane, 1,1,2-trichlorotrifluoroethane, tetrachloroethane, CH2Cl2, CH2I2), ammonium sulfate + NH4 + NO3, HgO, metal halides (e.g., silver halides, zinc chloride, iron(III) chloride), metal oxides (e.g., silver oxide, mercury oxide), nitrogen-containing explosives (e.g., ammonium nitrate, ammonium sulfate, picric acid, nitrobenzene), oxalyl bromide, oxalyl chloride, pentachloroethane, K oxides, KO2, Si, NaHCO3, polytetrafluoroethylene. Reacts vigorously with oxidizing materials.
To fight fire, use G-1 powder, dry sodium chloride, dry sodium carbonate, dry calcium carbonate, dry sand, resin-coated sodium chloride, or dry soda ash. Never use water, graphite, carbon dioxide, halocarbons, or foam.
Dangerous; when heated it emits highly toxic fumes of Na2O and K2O. Used as a liquid coolant for nuclear reactor cores. See also SODIUM and POTASSIUM.
Standards and Recommendations
DOT Classification: 4.3; Label: Dangerous When Wet
Specification
Potassium sodium alloy , its cas register number is 64058-30-6. It also can be called Potassiumsodiumalloy78:22(99.95%) ;
potassiumsodiumalloys ; Sodiumpotassiumalloy,nak ; Potassiumsodiumalloy78:22 . Potassium sodium alloy (CAS NO.11135-81-2) is highly flammable and it will Reacts violently with water. You should keep it away from sources of ignition and wear suitable protective clothing, gloves and eye/face protection. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.