CAS RN: 64-17-5

Reactivities / Incompatibilities

Incompatible materials: Alkali metals, oxidizing agents, peroxides.
Many explosions have been experienced during the gravimetric determination of either perchlorates or potassium as potassium perchlorate by a standard method involving ethanol extraction. During subsequent heating, formation and explosion of ethyl perchlorate is very probable.
Strong oxidizing agents such as chlorine, nitric acid, permanganate, or chromate in acid solution react, in some cases violently, with it to produce oxidation products.
A solution of permanganic acid (or its explosive anhydride dimanganese heptoxide) ... will explode on contact with ... ethanol ... .
Solid /ruthenium (VIII) oxide/ or its concentrated solutions or vapor, tends to oxidize ethanol, cellulose fibers ... explosively.
Bromine pentafluoride ... contact with ... ethanol is likely to cause fire or explosion ... .
... Ethanol ignites then explodes /upon contact with nitrosyl perchlorate/.
... Ethanol ... ignites on contact with /chromyl/ chloride ... .
Uranium hexafluoride /reacts violently/ with ethanol ... .
... Ethanol ... ignites in contact with /iodine heptafluoride/ gas ... .
Attempted crystallization of ... /uranyl perchlorate/ from ethanol caused an explosion ... .
Interaction ... /between/ water, methanol or ethanol /and acetyl bromide/ is violent, hydrogen bromide being evolved.
Reclaimed silver nitrate crystals, damp with the alcohol used for washing, exploded violently when touched with a spatula ... .
Violent reaction on mixing /of disulfuryl difluoride and ethanol/ at ambient temperatures.
The desiccant /magnesium perchlorate/ in a drying tube, accidentally exposed to ethanol vapor, was left for several months. The explosion which occurred when the desiccant was scraped out was certainly due to formation of ethyl perchlorate.
Addition of platinum black catalyst to ethanol caused ignition. Pre-reduction with hydrogen and/or nitrogen purging of air prevented this.
Contact of 1.5 g portions of the solid /potassium tert-butoxide/ ... with ... /ethanol vapor for 7 min/ caused ignition ... .
Acetyl chloride reacts violently with ethyl alcohol or water.
A little calcium hypochlorite added to ethyl alcohol or glycerol will result in a violent explosion after a short time.
The addition of alcohols to highly concentrated hydrogen peroxide forms powerful explosives which can be detonated by shock.
The Petrov method of preparing 1-iodo-2-ethoxy-3-butene calls for addition of 15 g of mercuric oxide to 0.11 molar ethyl alcohol in 25 mL of methyl alcohol, followed by 25 g of powdered iodine at -10 to -15 deg C, filtration, and dilution. A change in the procedure used 1 molar ethyl alcohol. While the alcohol was being distilled off under vacuum, a violent explosion occurred.
A violent explosion occurred when manganese perchlorate, absolute alcohol and 2,2-dimethoxypropane were gently refluxed for about two hr under a stream of nitrogen.
Alcohols should not be mixed with mercuric nitrate, as explosive mercury fulminate may be formed.
Certain metal perchlorates recrystallized from benzene or ethyl alcohol can explode spontaneously.
In mineral analysis the potassium cation is sometimes identified by adding perchloric acid in the presence of ethyl alcohol concn. Explosions frequently occur that are due to the spontaneous decomp of ethyl perchlorate formed during concn and of residual perchloric acid.
To dispose of a sodium-potassium waste, it was placed in a glove box, which was then purged with argon for 10 min. When 10 mL of alcohol was added to the waste, an immediate pressure rise caused the glove to burst and flame issued from the port. Also, a highly oxidized sphere of potassium was cut in two and one half was dropped into a dish of alcohol; an immediate explosion shattered the dish. Potassium superoxide was considered the cause of both incidents.
Addition of air, or alcohol, or moisture to sodium hydrazide can produce an explosion.
Strong oxidizers, potassium dioxide, bromine pentafluoride, acetyl bromide, acetyl chloride, platinum, sodium.
Accidental presence of the acid salt /acetic anhydride/ vigorously catalyzed a large scale preparation of ethyl acetate, causing violent boiling and emission of vapor which became ignited and exploded.
The residues from a cortisol assay procedure (5 cc dichloromethane, 2.5 cc of a fluorescent reagent in 15:85 ethanol-sulfuric acid) were added to a 500 cc bottle and screw capped. After a 90 s delay, the bottle burst violently and brown fumes were seen. It was surmised that a nitrate or nitrite contaminant in the bottle had liberated oxides of nitrogen or nitric acid which had oxidized the organics exothermically.
/Tetraphosphorus hexaoxide/ ignites immediately with ethanol at ambient temperature.
Distillation of /barium perchlorate/ mixtures with C1-C3 alcohols gives the highly explosive alkyl perchlorates.
/Chloryl perchlorate/ violently or explosively oxidizes ethanol... .
When /ethanol/ was used to rinse a pestle and mortar which had been used to grind coarse chromium trioxide, immediate ignition occurred due to vigorous oxidation of the solvent.
/Dioxygen difluoride/ explodes with solid ethanol below -130 deg C...
The very powerful liquid oxident, /Fluorine nitrate/, explodes when vigorously shaken, or immediately on contact with /ethanol/...
In the analytical determination of potassium as perchlorate, heating the solid containing traces of ethanol and perchloric acid caused a violent explosion. Contact of drops of anhydrous perchloric acid and ethanol caused immediate violent explosion.
In a demonstration of the powerful oxidant effect of manganese heptoxide on ethanol layered on top of sulfuric acid, it is essential to observe all the precautions given to prevent violent exothermic reactions.
The ethanol complex /with silver perchlorate/... exploded...
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