1. Limonene can dissolve foam plastics and can be extracted from fresh orange peels.

2. Gasoline dissolves quickly.

Limonene, also known as limonene (English: Limonene; commonly known as limonene): is a cyclic monoterpene that is widely present in various essential oils, especially lemon oil and lemongrass oil. , orange oil, bergamot oil, dill oil. The limonene molecule contains a chiral center and has L-limonene, dextro-limonene optical isomers and a racemate. Both isomers are colorless, flammable liquids with a strong pleasant aroma at room temperature. L-limonene smells like lemon/turpentine, while d-limonene smells like lemon/orange.

Gasoline (ULP): Appears as a transparent liquid, mainly composed of C4~C10 hydrocarbons. It is divided into three grades: No. 90, No. 93 and No. 95 according to the research octane number. It has a high octane number and excellent anti-knock properties. It is used in carburetor-type gasoline engines with high compression ratios to increase engine power and reduce fuel consumption. It has good evaporation and combustion properties and can ensure engine operation. Smooth, complete combustion, less carbon deposits; good stability.