What is the active ingredient of candles, diesel, gasoline, alcohol?

The main component of the candle is paraffin, which is a mixture of n-docosane (C22H46) and n-octadecene (C28H58), containing about 85 carbon elements and about 14 hydrogen elements. The added excipients are white oil, stearic acid, polyethylene, flavor, etc.!

The main components of diesel fuel are n-alkanes, isoparaffins, naphthenes and aromatic hydrocarbons.

Gasoline is a mixture of isooctane and n-heptane, the main component is isooctane, No. 90 contains 90% isooctane, No. 93 contains 93% isooctane, and so on!

The composition of alcohol is ethanol!

Now the main raw material of candle is paraffin, paraffin is prepared from the wax-containing fraction of petroleum by cold pressing or solvent dewaxing, is a mixture of several higher alkanes, mainly n-dodosecane (C22H46) and n-octadecene (C28H58), containing about 85 carbon elements and about 14 hydrogen elements.

Main chemical components of diesel: alkanes: naphthenes:

One ring: two rings: three rings:

Total aromatic hydrocarbons: monocyclic aromatic hydrocarbons: alkylbenzene:

Indene, naphthalene derivatives: polycyclic aromatic hydrocarbons: indenoids:

Naphthalene: acenaphthene, acenaphthene: tricyclic aromatic hydrocarbons:

Gum: At present, the light diesel oil used in China is divided into 6 grades according to the freezing point: 5 diesel, 0 diesel, 10 diesel, 20 diesel, 35 diesel and 50 diesel.

The selection of different grades of diesel fuel should be mainly determined according to the temperature at the time of use. In some parts of the north and south of our country, different diesel labels should be used in different seasons: 5 The applicable minimum temperature is 8 or more; 0 Applicable minimum temperature of 4 or above; -10 is applicable for a minimum temperature of -5 or above; -20 Applicable minimum temperature is -14 or above; -35 The applicable minimum temperature is -29 or above; -50 applies to a minimum temperature of -44 or above.

Gasoline is mainly composed of C4 and C10 hydrocarbons, which is one of the mixed hydrocarbons, which is slightly yellow and volatile; According to the research method octane number is divided into 90, 93, 95 three grades, unleaded gasoline for vehicles by straight-run gasoline, catalytic cracking gasoline, catalytic reforming gasoline and alkylated gasoline and other components, which can also add an appropriate amount of antiknock agent, antioxidant, metal passivator and detergent and other additives. No. 97 and No. 98 are composed of catalytic cracking gasoline, catalytic cracking gasoline and alkylated gasoline, among which an appropriate amount of antiknock agent, antioxidant, metal passivator and detergent can also be added.

In fact, all three are made from petroleum.

Candles: 17--36 carbon atoms of alkanes; Diesel: 15---18 carbon atoms hydrocarbon;

Gasoline: hydrocarbons of 5-11 carbon atoms; Alcohol --- C2H5OH

In short, carbon and hydrogen.