| Chemical | Concentration | 20°C | 60°C | Environmental Cracking Hazard |
|---|---|---|---|---|
| Acetaldehyde | 100 | - | | | ° |
| Acetic acid | 10 | • | • | |
| Acetic acid | 60 | • | • | • |
| Acetic acid | Glacial | - | | | • |
| Acetone | 100 | | | | | ° |
| Alcohol, amyl | • | ° | ||
| Alcohol, butyl | • | ° | ||
| Alcohol, cetyl | • | ° | ||
| Alcohol, ethyl | 40 | • | ||
| Alcohol, ethyl | 100 | | | ° | |
| Alcohol, furfuryl | | | ° | ||
| Alcohol, methyl | 6 | • | ||
| Alcohol, methyl | 100 | - | ||
| Alum | • | • | ||
| Aluminium chloride | • | • | ||
| Aluminium fluoride | • | • | ||
| Aluminium hydroxide | • | • | ||
| Aluminium sulphate | • | • | ||
| Ammonia | 0.88 SG | • | • | |
| Ammonia | Dry gas | • | • | |
| Ammonium bicarbonate | • | • | ||
| Ammonium carbonate | • | • | ||
| Ammonium chloride | • | • | ||
| Ammonium hydrosulphide | • | • | ||
| Ammonium hydroxide | • | • | ||
| Ammonium metaphosphate | • | • | ||
| Ammonium nitrate | • | • | ||
| Ammonium persulphate | • | • | ||
| Ammonium phosphate | • | • | ||
| Ammonium sulphide | • | • | ||
| Ammonium thiocyanate | • | • | ||
| Amyl acetate | | | ° | ||
| Aniline | | | |||
| Aniline hydrochloride | | | |||
| Aniline sulphate | | | |||
| Animal oils | - | | | ° | |
| Antimony pentachloride | • | • | ||
| Antimony trichloride | • | • | ||
| "Arcton" 6 | - | ° | ||
| Barium carbonate | • | • | ||
| Barium chloride | • | • | ||
| Barium hydroxide | • | • | ||
| Barium sulphate | • | • | ||
| Barium sulphide | • | • | ||
| Beer | • | • | ||
| Benzaldehyde | 100 | | | ° | |
| Benzene | | | ° | ||
| Benzene sulphonic acid | | | |||
| Benzyl alcohol | | | |||
| Bismuth carbonate | • | • | ||
| Borax | • | • | ||
| Boric acid | • | • | ||
| Boron trifluoride | • | |||
| Brine | • | • | ||
| Bromine | Dry gas | | | ||
| Calcium bisulphite | • | • | ||
| Calcium carbonate | • | • | ||
| Calcium chlorate | • | • | ||
| Calcium chloride | • | • | ||
| Calcium hydroxide | • | • | ||
| Calcium hypochlorite | • | |||
| Calcium nitrate | • | |||
| Calcium phosphate | • | |||
| Calcium sulphate | • | |||
| Camphor oil | | | ° | ||
| Carbon dioxide | • | |||
| Carbon disulphide | | | |||
| Carbon monoxide | • | |||
| Carbon tetrachloride | | | |||
| Castor oil | | | ° | ||
| Chloral hydrate | | | |||
| Chlorine | Dry gas | - | | | |
| Chlorine | Liquid | | | ||
| Chlorine water | 2 | • | • | |
| Chlorine water | Sat. solution | • | - | |
| Chloroform | | | ° | ||
| Chlorosulphonic acid | | | | | ||
| Chrome alum | • | • | ||
| Chromic acid | Plating solution | • | • | |
| Cider | • | |||
| Citric acid | • | • | ||
| Copper chloride | • | • | ||
| Copper cyanide | • | • | ||
| Copper fluoride | • | • | ||
| Copper nitrate | • | • | ||
| Copper sulphate | • | • | ||
| Creosote | | | ° | ||
| Cresols | | | ° | ||
| Cresylic acid (crude) | | | |||
| Cupric chloride | • | • | ||
| Cupric nitrate | • | • | ||
| Cupric sulphate | • | • | ||
| Cyclohexanol | | | |||
| Cyclohexanone | | | |||
| Detergents, synthetic (normal user conditions) | • | • | ° | |
| Developers, photographic | • | • | ||
| Dextrose | • | • | ||
| Dibutyl phthalate | - | | | ° | |
| Diethyl ether | | | | | ° | |
| Dioctyl phthalate | - | | | ° | |
| Disodium phosphate | • | |||
| Emulsifiers | All conc. | • | • | |
| Emulsions, photographic | • | |||
| Ether | | | ° | ||
| Ethyl acetate | - | | | ||
| Ethylene dichloride | | | ° | ||
| Ethylene glycol | • | |||
| Ferric chloride | • | |||
| Ferric sulphate | • | |||
| Ferrous ammonium citrate | • | • | ||
| Ferrous sulphate | • | • | ||
| Fixing solution, photographic | • | • | ||
| Fluorine | - | | | ||
| Fluorsilicic acid | • | |||
| Formaldehyde | 40 | • | • | |
| Formic acid | 3 | • | • | |
| Formic acid | 10 | • | • | |
| Formic acid | 25 | • | • | |
| Formic acid | 50 | • | • | |
| Formic acid | 100 | • | • | |
| Fruit pulp | • | |||
| Furfuryl alcohol | | | ° | ||
| Glucose | • | |||
| Glycerine | • | • | ||
| Grape sugar | • | • | ||
| Hydrobromic acid | 50 | • | • | |
| Hydrobromic acid | 100 | • | • | |
| Hydrochloric acid | 10 | • | • | |
| Hydrochloric acid | 22 | • | • | |
| Hydrochloric acid | Conc. | • | • | |
| Hydrofluoric acid | 4 | • | • | |
| Hydrofluoric acid | 40 | • | • | |
| Hydrofluoric acid | 50 | • | • | |
| Hydrofluoric acid | Conc. | • | - | |
| Hydrogen | • | • | ||
| Hydrogen peroxide | 3 (10 vol.) | • | ||
| Hydrogen peroxide | 12 (40 vol.) | • | ||
| Hydrogen peroxide | 30 (100 vol.) | • | ||
| Hydrogen peroxide | 90 and above | • | ||
| Hydrogen sulphide | • | |||
| Hydroquinone | • | |||
| Hypochlorous acid | - | | | ||
| Lactic acid | 10 | • | • | |
| Lactic acid | 100 | • | • | |
| Lead acetate | • | |||
| Lead arsenate | • | |||
| Lead tetra-ethyl | • | |||
| Linseed oil | - | | | ° | |
| Magnesium carbonate | • | • | ||
| Magnesium chloride | • | • | ||
| Magnesium hydroxide | • | • | ||
| Magnesium nitrate | • | • | ||
| Magnesium sulphate | • | • | ||
| Maleic acid | 25 | • | • | |
| Maleic acid | 50 | • | • | |
| Maleic acid | Conc. | • | • | |
| Magnesium sulphate | • | • | ||
| Mercuric chloride | • | • | ||
| Mercuric cyanide | • | • | ||
| Mercury | • | |||
| Metallic soaps | • | ° | ||
| Methyl acetate | | | | | ||
| Methyl bromide | - | | | ||
| Methyl chloride | | | | | ||
| Methyl ethyl ketone | - | | | ° | |
| Milk | • | |||
| Mineral oils | - | | | ° | |
| Monochlorbenzene | | | | | ||
| Nickel chloride | • | • | ||
| Nickel nitrate | • | • | ||
| Nickel sulphate | • | • | ||
| Nitric acid | 5 | • | • | Oxidising agent |
| Nitric acid | 10 | • | • | |
| Nitric acid | 25 | • | • | Oxidising agent |
| Nitric acid | 50 | - | | | Oxidising agent |
| Nitric acid | 70 | - | | | Oxidising agent |
| Nitric acid | 95 | | | | | Oxidising agent |
| Nitrobenzene | - | | | ° | |
| Oxalic acid | • | • | ||
| Oxygen | • | |||
| Paraffin | - | | | ||
| Petrol | | | | | ||
| Petroleum ether | | | | | ||
| Phenol | | | ° | ||
| Phosphoric acid | 25 | • | • | |
| Phosphoric acid | 30 | • | • | |
| Phosphoric acid | 50 | • | • | |
| Phosphoric acid | 95 | - | | | |
| Phosphorus oxychloride | | | | | ||
| Phosphorus pentoxide | • | • | ||
| Phosphorus trichloride | • | |||
| Photographic developers Photographic emulsions | •• | • | ||
| Photographic fixing | ||||
| Solutions | • | • | ||
| Picric acid | 1 | • | ||
| Picric acid | 10% | |||
| Picric acid | w./ alcohol | • | ||
| Potassium bicarbonate | • | • | ||
| Potassium bichromate | • | • | ||
| Potassium bisulphate | • | • | ||
| Potassium bisulphite | • | • | ||
| Potassium borate | • | • | ||
| Potassium bromate | • | • | ||
| Potassium bromide | • | • | ||
| Potassium carbonate | • | • | ||
| Potassium chlorate | • | • | ||
| Potassium chloride | • | • | ||
| Potassium chromate | • | • | ||
| Potassium cuprocyanide | • | • | ||
| Potassium cyanide | • | • | ||
| Potassium dichromate | • | • | ||
| Potassium ferricyanide | • | • | ||
| Potassium ferrocyanide | • | • | ||
| Potassium fluoride | • | • | ||
| Potassium hydroxide | 1 | • | • | |
| Potassium hydroxide | 10 | • | • | |
| Potassium hydroxide | Conc. | • | • | ° |
| Potassium nitrate | • | • | ||
| Potassium perborate | • | • | ||
| Potassium permanganate | • | • | ||
| Potassium persulphate | • | • | ||
| Potassium phosphate | • | • | ||
| Potassium sulphate | • | • | ||
| Potassium sulphide | • | • | ||
| Potassium thiosulphate | • | • | ||
| Salicylic acid | • | • | ||
| Sea water | • | • | ||
| Silicone fluids | - | ° | ||
| Silver cyanide | • | • | ||
| Silver nitrate | • | • | ||
| Soap solution | • | • | ° | |
| Sodium acetate | • | • | ||
| Sodium aluminate | • | • | ||
| Sodium benzoate | • | • | ||
| Sodium bicarbonate | • | • | ||
| Sodium bisulphate | • | • | ||
| Sodium bisulphite | • | • | ||
| Sodium borate | • | • | ||
| Sodium bromide | • | • | ||
| Sodium carbonate | • | • | ||
| Sodium chlorate | • | • | ||
| Sodium chloride | • | • | ||
| Sodium cyanide | • | • | ||
| Sodium ferricyanide | • | • | ||
| Sodium ferrocyanide | • | • | ||
| Sodium fluoride | • | • | ||
| Sodium hydroxide | 1 | • | • | |
| Sodium hydroxide | 10 | • | • | |
| Sodium hydroxide | 40 | • | • | |
| Sodium hydroxide | Conc. | • | • | ° |
| Sodium hyposulphates | • | • | ||
| Sodium hypochlorite | 15% chlorine | • | • | Oxidising agent |
| Sodium metaphosphate | • | • | ||
| Sodium nitrate | • | • | ||
| Sodium nitrite | • | • | ||
| Sodium peroxide | • | • | ||
| Sodium phosphate | • | • | ||
| Sodium silicate | • | • | ||
| Sodium sulphate | • | • | ||
| Sodium sulphide | 25 | • | • | |
| Sodium sulphide | Conc. | • | • | |
| Sodium sulphite | • | • | ||
| Sodium thiosulphate | • | • | ||
| Soft soap | • | • | ° | |
| Stannic chloride | • | • | ||
| Stannous chloride | • | • | ||
| Starch | • | • | ||
| Stearic acid | • | • | ||
| Sucrose | • | • | ||
| Sulphur | Colloidal | • | ||
| Sulphur dioxide | Dry gas | • | ||
| Sulphur dioxide | Moist | • | ||
| Sulphuric acid | 10 | • | • | |
| Sulphuric acid | 20 | • | • | |
| Sulphuric acid | 30 | • | • | |
| Sulphuric acid | 40 | • | • | |
| Sulphuric acid | 50 | • | • | |
| Sulphuric acid | 60 | • | • | |
| Sulphuric acid | 70 | • | - | |
| Sulphuric acid | 95 | - | | | |
| Sulphuric acid | Â 98 | - | | | |
| Sulphuric acid | Fuming | | | | | |
| Surface-active agents (Emulsifiers, synthetic detergents and wetting agents) | Normal dilutions | • | • | ° |
| Tallow | • | |||
| Tannic acid | • | • | ||
| Tanning extracts | • | • | ||
| Tartaric acid | 10 | • | • | |
| Toluene | | | | | ||
| Transformer oil | | | | | ° | |
| Trichloroethylene | | | | | ° | |
| Tricresyl phosphate | | | | | ° | |
| Triethanolamine | - | | | ° | |
| Trisodium phosphate | • | • | ||
| Turpentine | - | | | ° | |
| Vegetable oils | - | | | ° | |
| Vinegar | • | • | ||
| Water | • | • | ||
| Wetting agents | Normal dilutions | • | • | ° |
| Whey | • | |||
| Wines and spirits | • | |||
| Xylene | | | | | ° | |
| Yeast | • | |||
| Zinc chloride | • | • | ||
| Zinc oxide | • | • | ||
| Zinc sulphate | • | • |
The following key has been used in this table:
• indicates satisfactory, negligible attack
- indicates some attack or absorption (may be considered where alternative materials are unsatisfactory)
| indicates unsatisfactory, extensive attack (polyethylene should not be used for any applications where these environments are present)
° indicates possibility of ‘environmental stress cracking’
NOTE:
