Specific Gravity Reference Chart

The specific gravity and weight of liquids chart below is intended to be used to aide in the selection of aboveground storage tanks. The liquids listed are only a representative sample of products commonly used in the petrochemical industry. For specific gravity information not listed in this chart, please contact a PTC representative.

Specific Gravities & Weights - Select Liquids*
Liquid Specific Gravity Weight in lbs.per Gallon Weight in lbs. per Cubic Foot
 Acetic Acid 1.049 8.75 65.5 
 Alcohol, Ethyl (Ethanol) 0.789 6.58  49.2
 Benzene 0.876 7.31 54.7
 Caustic Soda (66% Solution) 1.700 14.18 106.1
Citric Acid  1.542 1286 96.2
Ether 0.708 5.90 44
Ethyl Acetate 0.901 7.50 56
Ethyl Chloride 0.917 7.64 57
Ethyl Ether 0.712 - 0.714 5.93 - 5.95 44 - 45
 Ethylene Glycol 1.100 9.17 68.6
Hydrochloric Acid (43.4% Solution)  1.213 10.12 75.7
#1 Fuel Oil 0.80 - 0.85 6.7 - 7.1 50 - 53
#2 Fuel Oil 0.81 - 0.91 6.7 - 7.6 51 - 57
#4 Fuel Oil 0.84 - 1.00 7.0 - 8.3 52 - 62
#5 Fuel Oil 0.91 - 1.06 7.6 - 8.8 57 - 66
#6 Fuel Oil 0.92 - 1.08 7.7 - 9.0 57 - 67
Gasoline 0.70 - 0.76 5.8 - 6.3 44 - 47
Kerosene 0.82 6.83 51
Naphthalene 1.145 9.54 71
 Naphtha, Petroleum Naphtha 0.667 5.56 41.6
Nitric Acid (91% Solution) 1.502 12.53 93.7
Phenol  1.071 8.93 66.8
 Sulphuric Acid (87% Solution) 1.834 15.30 114.4
Water (Sea) 1.025 8.54 64
Water (0 degree Celcius) 1.00 8.34 62.4
Water (20 degree Celcius) 0.998 8.32 62.3