Experiment 3, page 3

Fire hazard

Flash point 12ºC; ignition temp. 180ºC; extinguish fire with CO2.
Explosive peroxides formed on exposure to air/light. Reacts explosively with Raney Ni

at >210ºC. Addition complex with SO3explodes on storage.
Clear area, shut off all sources of ignition. Wear goggles, gloves, and laboratory coat.
Mop up with plenty of water and run to waste. Organise effective ventilation and
evaporate remaining liquid. 1,4-Dioxan should be placed in the non-chlorinated waste
container for central disposal.

Hazardous reactions:

Spillage & disposal

ETHYL ACETATE:
HIGHLY FLAMMABLE
IRRITATING TO EYES AND RESPIRATORY SYSTEM
Colourless liquid with fragrant odour; b.p. 77ºC; slightly soluble in water. Avoid breathing vapour. Avoid eye
contact. OEL 1400 mgm-3.

Toxic effects:

The vapour may irritate the eyes and respiratory system. The liquid irritates the eyes and
mucous surfaces. Prolonged inhalation may cause kidney and liver damage.
Flash point –4.4ºC; ignition temp. 427ºC; extinguish fire with CO2.

Clear area, shut off all sources of ignition. Wear face shield goggles and gloves. Absorb
bulk quantities on sand, shovel into buckets. Wash site of spillage with water and
detergent. Ethyl acetate should be placed in the non-chlorinated waste container for
central disposal.

Fire hazard:

Spillage & disposal:

PHOSPHORIC ACID:
CORROSIVE
CAUSES BURNS
Colourless viscous liquid, miscible with water. Avoid eye contact. OEL 2 mgm-3.

Toxic effects:

The liquid burns the eyes and skin severely. If taken by mouth, there would be severe
internal damage.
Wear goggles, gloves, and laboratory coat. Carefully spread sodium carbonate liberally
over thespillage and mop up cautiously with plenty of water. Run to waste with
running water.

Spillage & disposal:

PYRIDINE:
HARMFUL BY INHALATION, INGESTION, AND SKIN CONTACT
IRRITATING TO EYES, SKIN AND RESPIRATORY SYSTEM
HIGHLY FLAMMABLE
Colourless liquid with a sharp penetrating odour; b.p. 115ºC; miscible with water.Avoid breathing vapour. Avoid
contact with skin and eyes. OEL 2 mgm-3.

Toxic effects:

The vapour irritates the respiratory system and may cause headache, nausea, giddiness
and vomiting. The vapour and liquid irritates the eyes and may cause conjunctivitis. the
liquid may irritate the skin and cause dermatitis. Affects the central nervous system if
taken by mouth and large doses act as a heart poison.
Flash point 20ºC, ignition temp. 482ºC; extinguish fire with CO2.
Complex with CrO3unstable and decomposes violently when dry. Reacts violently
with N2O4.

Fire hazard:
Hazardous reactions: