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POTASSIUM HYDRIDE
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Name

POTASSIUM HYDRIDE

 EINECS N/A
CAS No. 7693-26-7 Density 1.45
PSA 0.00000 LogP 0.00000
Solubility decomposed by H2O [CRC10] Melting Point decomposes [CRC10]
Formula HK Boiling Point 316oC
Molecular Weight 40.1062 Flash Point 113oC
Transport Information N/A Appearance N/A
Safety Dangerous fire hazard by chemical reaction. Ignites spontaneously in air. Moderate explosion hazard when exposed to heat or by chemical reaction. Will react with water, steam, or acids to produce H2 which then ignites. Can react vigorously with oxidizing materials. To fight fire, use CO2, dry chemical. Potentially explosive reactions with o-2,4-dinitrophenylhydroxylamine, fluoroalkenes. Ignites on contact with air, oxygen + moisture, fluorine. Incompatible with Cl2, acetic acid, acrolein, acrylonitrile, (CaC + Cl2), ClO2, (H2O2 + Cl2), (CHFl3 + CH3OH), 1,2-dichloroethylene, maleic anhydride, (n-methyl-n-nitrosourea + CH2Cl2), nitroethane, NCl3, nitromethane, nitroparaffins, o-nitrophenol, nitropropane, n-nitrosomethylurea, (nitrosomethylurea + CH2Cl2), H2O, trichloroethylene, tetrahydrofuran, tetrachlorethane. When heated to decomposition it emits highly toxic fumes of K2O. See also POTASSIUM and HYDRIDES. Risk Codes R11;R14/15;R34;
Molecular Structure Molecular Structure of 7693-26-7 (Potassium hydride) Hazard Symbols FC
Synonyms

Potassiumhydride (8CI); Potassium monohydride

Article Data 4

POTASSIUM HYDRIDE Synthetic route

1333-74-0

hydrogen

7440-09-7

potassium

7693-26-7

potassium hydride

Conditions
ConditionsYield
In neat (no solvent) byproducts: H; Irradiation (UV/VIS); mixt. irradiation by frequency doubled and tripled Nd:YAG laser (404.4nm, 30 Hz, 300 μJ/pulse, oven temp. 500 K), according to P. D. Kleib er et al., J. Chem. Phys. 85 (1986) 5493; detection by LIF technique;
In neat (no solvent) using a six-armed heat pipe to deposit K metal, heating K metal in the oven (500 K, 100 mTorr), evacuating (to 1E-5 Torr prior introduction of H2) flowing H2 slowly through the chamber (< 5 Torr);
In neat (no solvent, gas phase) potassium was placed in the cell-furnace and subjected to vacuum extn. and slight heating; hydrogen was introduced at 10-20 torr; the cell was kept at 700 K;;
In neat (no solvent) production of hydride on discharge (2400 MHz, 150 mA, p(H2) = 1 Torr);
7693-26-7

potassium hydride

lithium tetrahydridogallate

potassium tetrahydrogallate

Conditions
ConditionsYield
In diethyl ether byproducts: LiH; Ga-complex soln. treating with excess K-compd. (three-necked flask, roomtemp., stirring, 3 h), soln. decantation; ppt. washing (ether), treatment with diglyme, crystn. on soln. vac. evapn. (80°C), crystals washing (ether), vac. drying (90°C, 2 h); elem. anal.;91%
7693-26-7

potassium hydride

210818-37-4

(C6H5)2Sn(CH2C(OH)(CF3)2)2

(C6H5)2Sn(OC(CF3)2)2(CH2)(CH3)(1-)*K(1+)=(C6H5)2Sn(OC(CF3)2)2(CH2)(CH3)K

Conditions
ConditionsYield
In tetrahydrofuran room temp., 2 d;

POTASSIUM HYDRIDE Chemical Properties

IUPAC Name: Potassium hydride
Synonyms: Potassium hydride ; KH ; Potassium hydride (KH) ; Potassiumhydride(KH) ; Potassiumhydrideinoilslurrygraypowder ; Potassium hydride, ~35% dispersion in mi neral oil ; Potassium hydride, 30 wt. % dispersion i n mineral oil ; Potassium hydride, 20-25% in oil
Product Categories: Materials for Hydrogen Storage;Metal Hydrides;Metal HydridesAlternative Energy;Reduction;Synthetic Reagents
CAS NO: 7693-26-7
Molecular Formula:: KH
Molecular Weight: 40.1062
Molecular Structure:
EINECS: 231-704-8
Boiling Point: 316 °C
Density 1.54
Flash Point: 113 °C
Storage temp: Flammables + water-Freezer (-20°C)e area
Sensitive: Potassium hydride (CAS NO.7693-26-7) is moisture sensitive.
Appearance: Potassium hydride (CAS NO.7693-26-7) is dispersion of tan powder in mineral oil

POTASSIUM HYDRIDE Uses

 Potassium hydride (CAS NO.7693-26-7) is used for the condensation agent and alkyl agent in organic synthesis .

POTASSIUM HYDRIDE Safety Profile

Dangerous fire hazard by chemical reaction. Ignites spontaneously in air. Moderate explosion hazard when exposed to heat or by chemical reaction. Will react with water, steam, or acids to produce H2 which then ignites. Can react vigorously with oxidizing materials. To fight fire, use CO2, dry chemical. Potentially explosive reactions with o-2,4-dinitrophenylhydroxylamine, fluoroalkenes. Ignites on contact with air, oxygen + moisture, fluorine. Incompatible with Cl2, acetic acid, acrolein, acrylonitrile, (CaC + Cl2), ClO2, (H2O2 + Cl2), (CHFl3 + CH3OH), 1,2-dichloroethylene, maleic anhydride, (n-methyl-n-nitrosourea + CH2Cl2), nitroethane, NCl3, nitromethane, nitroparaffins, o-nitrophenol, nitropropane, n-nitrosomethylurea, (nitrosomethylurea + CH2Cl2), H2O, trichloroethylene, tetrahydrofuran, tetrachlorethane. When heated to decomposition it emits highly toxic fumes of K2O. See also POTASSIUM and HYDRIDES.
Hazard Codes FlammableF,CorrosiveC
Risk Statements 11-14/15-34
R11:Highly flammable. 
R14/15: Reacts violently with water, liberating extremely flammable gases
R34:Causes burns.
Safety Statements 16-26-27-36/37/39-45
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.)
RIDADR UN 1409 4.3/PG 1
WGK Germany 3
HazardClass 4.3
PackingGroup I
 

 

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