Given below is a table of the common laboratory agents you will routinely encounter during the course of your practical work in the School of Chemical Sciences.

Common Lab reagent Name / Hazard Symbol / Hazard number and statement
Toluene / Hazard Symbols
/ H225 Highly flammable liquid and vapour.
H304 May be fatal if swallowed and enters airways
H315 Causes skin irritation.
H336 May cause drowsiness or dizziness.
H361d Suspected of damaging the unborn child.
H373 May cause damage to organs through prolonged or repeated exposure.
Hexane / Hazard Symbols
/ H225 Highly flammable liquid and vapour.
H304 May be fatal if swallowed and enters airways.
H315 Causes skin irritation.
H336 May cause drowsiness or dizziness.
H361f Suspected of damaging fertility.
H373 May cause damage to organs through prolonged or repeated exposure.
H411 Toxic to aquatic life with long lasting effects.
Acetone / Hazard Symbols
/ H225 Highly flammable liquid and vapour.
H319 Causes serious eye irritation.
H336 May cause drowsiness or dizziness.
Ethyl Acetate / Hazard Symbols
/ H225 Highly flammable liquid and vapour.
H319 Causes serious eye irritation.
H336 May cause drowsiness or dizziness.
Common Lab reagent Name / Hazard Symbol / Hazard number and statement
Cyclohexane / Hazard Symbols
/ H225 Highly flammable liquid and vapour.
H304 May be fatal if swallowed and enters airways.
H315 Causes skin irritation.
H336 May cause drowsiness or dizziness.
H410 Very toxic to aquatic life with long lasting effects.
Methanol / Hazard Symbols
/ H225 Highly flammable liquid and vapour.
H304 May be fatal if swallowed and enters airways.
H315 Causes skin irritation.
H336 May cause drowsiness or dizziness.
H410 Very toxic to aquatic life with long lasting effects.
Ethanol / Hazard symbols
/ H225 Highly flammable liquid and vapour.
Tetrahydrofuran / Hazard symbols
/ H225 Highly flammable liquid and vapour.
H319 Causes serious eye irritation.
H335 May cause respiratory irritation.
Iso Propyl Alcohol (I.P.A.) / Hazard symbols
/ H225 Highly flammable liquid and vapour.
H319 Causes serious eye irritation.
H336 May cause drowsiness or dizziness
Acetonitrile / Hazard symbols
/ H225 Highly flammable liquid and vapour.
H302 Harmful if swallowed.
H312 Harmful in contact with skin.
H319 Causes serious eye irritation.
H332 Harmful if inhaled.
Common Lab reagent Name / Hazard Symbol / Hazard number and statement
Petroleum Ether 40-60 or 60-80 / Hazard symbols
/ H225 Highly flammable liquid and vapour.
H304 May be fatal if swallowed and enters airways.
H315 Causes skin irritation.
H336 May cause drowsiness or dizziness.
H361 Suspected of damaging fertility or the unborn child.
H373 May cause damage to organs through prolonged or repeated exposure if
inhaled.
H411 Toxic to aquatic life with long lasting effects.
Diethyl Ether / Hazard symbols
/ H224 Extremely flammable liquid and vapour.
H302 Harmful if swallowed.
H336 May cause drowsiness or dizziness.
Chloroform / Hazard symbols
/ H302 Harmful if swallowed.
H315 Causes skin irritation.
H351 Suspected of causing cancer.
H373 May cause damage to organs through prolonged or repeated exposure
Dichloromethane / Hazard symbols
/ H351 Suspected of causing cancer.
Magnesium Sulphate / N/A / Inorganic powdered solid-Not classified as dangerous.
Celite / Hazard symbols
/ H319 Causes serious eye irritation.
H335 May cause respiratory irritation.
H373 May cause damage to organs through prolonged or repeated exposure if
inhaled.
Common Lab reagent Name / Hazard Symbol / Hazard number and statement
Silica gel for column chromatography / N/A / To the best of our knowledge, the chemical, physical, and
toxicological properties have not been thoroughly investigated.
Amorphous silica is not classifiable as to its carcinogenicity to humans (Group 3); however, crystalline silica inhaled in the form of quartz or cristobalite from occupational sources is
carcinogenic to humans (Group 1) (IARC, Vol.: 68 (1997) (p.41)). Therefore, amorphous silica should be handled as if possessing the same hazards as the crystalline form.
Nitric Acid / Hazard symbols
/ H272 May intensify fire; oxidiser.
H314 Causes severe skin burns and eye damage.
Ammonium Hydroxide (Conc. Ammonia) / Hazard symbols
/ H314 Causes severe skin burns and eye damage.
H400 Very toxic to aquatic life.
Sulphuric Acid / Hazard symbols
/ H314 Causes severe skin burns and eye damage.
Hydrochloric Acid / Hazard symbols
/ H314 Causes severe skin burns and eye damage.
H335 May cause respiratory irritation.
Glacial Acetic Acid / Hazard symbols
/ H226 Flammable liquid and vapour.
H314 Causes severe skin burns and eye damage.
Common Lab reagent Name / Hazard Symbol / Hazard number and statement
Chloroform Deuterated / Hazard symbols
/ H302 Harmful if swallowed.
H315 Causes skin irritation.
H351 Suspected of causing cancer.
H373 May cause damage to organs through prolonged or repeated exposure.
Acetone deuterated / Hazard symbols
/ H225 Highly flammable liquid and vapour.
H319 Causes serious eye irritation.
H336 May cause drowsiness or dizziness.
Dimethyl sulfoxide deuterated / N/A / Not a hazardous substance or mixture according to Regulation (EC) No. 1272/2008.
This substance is not classified as dangerous according to Directive 67/548/EEC.
Acetonitrile deuterated / Hazard symbols
/ H225 Highly flammable liquid and vapour.
H302 Harmful if swallowed.
H312 Harmful in contact with skin.
H319 Causes serious eye irritation.
H332 Harmful if inhaled.
Deuterium Oxide / N/A / Not a hazardous substance or mixture according to Regulation (EC) No. 1272/2008.
This substance is not classified as dangerous according to Directive 67/548/EEC.