Reference values of viscosity for common liquids
Viscosity definition: Viscosity is the internal friction of a liquid. When a fluid is subjected to an external force and undergoes relative movement, the resistance generated between fluid molecules makes the fluid unable to flow smoothly. The magnitude of this resistance is called viscosity. Fluid viscosity is related to temperature.
Dynamic viscosity: Dynamic viscosity is the force required to generate a unit flow velocity per unit area of liquid layer over a unit distance. In the International System of Units, the unit of dynamic viscosity is millipascal-second (pa.s).
Commonly used units for measuring viscosity include cP, P, Pa.s, mPa.s, etc.
Conversion process:
1 cP = 1 mPa.s
100 cP = 1 P
1000 mPa.s = 1 Pa.s
| Liquid Medium | Absolute Viscosity (cP) | Temperature (°C) | Liquid Medium | Absolute Viscosity (cP) | Temperature (°C) |
| Water | 1 | 20 | Pear puree | 4000 | 70 |
| Air | 0.0178 | 20 | Concentrated orange juice 30Brix | 630 | 21 |
| Alcohol | 1.2 | 20 | Concentrated orange juice 30Brix | 91 | 79 |
| Carbon tetrachloride | 0.9 | 20 | Concentrated orange juice 50Brix | 2410 | 21 |
| Benzene | 0.6 | 20 | Salad dressing | 1300 – 2600 | 19 |
| Ether | 0.2 | 20 | Ketchup | 1000 | 29 |
| Yogurt | 152 | 40 | Tomato paste 30% | 195 | 19 |
| Egg | 150 | 4 | Yeast slurry | 20 | 19 |
| Milk | 3 | 18 | Edible oil | 65 | 21 |
| Whey 48% sugar | 180 – 1500 | 38 | Cough syrup | 190 | 29 |
| Cream 30% fat | 14 | 16 | Detergent | 1470 | 20 |
| Cream 40% fat | 48 | 16 | Face cream | 10000 | 21 |
| Cream 50% fat | 112 | 16 | Hair oil | 5000 | 21 |
| Cream 50% fat | 55 | 32 | Lotion | 200 | 21 |
| Beer | 1.1 | 4.5 | Shampoo | 3000 | 35 |
| Chocolate | 17000 | 49 | Soap solution | 82 | 60 |
| Chocolate milk | 280 | 49 | Paper glue | 3000 | 22 |
| Glucose | 4300 – 8600 | 75 – 85 | Glycerol | 1500 | 20 |
| Fruit juice | 55 – 75 | 19 | Semi-converted syrup | 2400 | 20 |
| Honey | 3000 | 20 | 180# heavy oil | 180 | 20 |
| Molasses | 1760 | 20 | Sour cream | 15200 | 20 |
| PECOAT® PVC Plastisol | 3000 | 25 |
Special note: The data in the table is for reference only. If extremely strict requirements are needed, please define according to the actual situation.