In 1794, a group of four Dutch friends under the name of Gezelschap der Hollandsche Scheikundigen consisted of physician Jan Rudolph Deiman, merchant Adriaan Paets van Troostwijk, chemist Anthoni Lauwerenburg and botanist Nicolaas Bondt. They were the first to produce 1,2-dichloroethane(107-06-2) from olefiant gas and chlorine gas. Although the Gezelschap in practice didn't do much in-depth scientific research, they and their publications were highly regarded. Part of that acknowledgement is that 1,2-dichloroethane(107-06-2) has been called Dutch oil in old chemistry.

The 1,2-Dichloroethane is an organic compound with the formula C₂H₄Cl₂. The IUPAC name of this chemical is 1,2-dichloroethane. With the CAS registry number 107-06-2, it is also named as 1,2-Ethylidene dichloride. The product's categories are Refrigerants; Organics; alpha,omega-Bifunctional Alkanes; alpha,omega-Dichloroalkanes; Analytical Chemistry; Monofunctional & alpha,omega-Bifunctional Alkanes; Solvents for HPLC & Spectrophotometry; Solvents for Spectrophotometry; Alpha Sort; D; DAlphabetic; DIA - DIC; Volatiles/Semivolatiles. Besides, it is clear liquid, which should be stored in a cool and well-ventilated place.

Physical properties about 1,2-Dichloroethane are:
(1)ACD/LogP: 1.41; (2)ACD/LogD (pH 5.5): 1.41; (3)ACD/LogD (pH 7.4): 1.41; (4)ACD/BCF (pH 5.5): 6.99; (5)ACD/BCF (pH 7.4): 6.99; (6)ACD/KOC (pH 5.5): 139.95; (7)ACD/KOC (pH 7.4): 139.95; (8)#Freely Rotating Bonds: 1; (9)Index of Refraction: 1.412; (10)Molar Refractivity: 21.01 cm³; (11)Molar Volume: 84.3 cm³; (12)Polarizability: 8.33×10^-24cm³; (13)Surface Tension: 25 dyne/cm; (14)Density: 1.173 g/cm³; (15)Flash Point: 15.6 °C; (16)Enthalpy of Vaporization: 31.98 kJ/mol; (17)Boiling Point: 83.5 °C at 760 mmHg; (18)Vapour Pressure: 83.9 mmHg at 25°C.

Preparation of 1,2-Dichloroethane:
Production is primarily achieved through the iron(III) chloride-catalysed reaction of ethene (ethylene) and chlorine.
H₂C=CH₂ + Cl₂ → ClCH₂-CH₂Cl
1,2-dichloroethane is also generated by the copper(II) chloride-catalysed "oxychlorination" of ethylene:
H₂C=CH₂ + 2 HCl + ½ O₂ → ClCH₂-CH₂Cl + H₂O
In principle, it can be prepared by the chlorination of ethane and, less directly, from ethanol.

Uses of 1,2-Dichloroethane:
 with approximately 80% of the world's consumption of 1,2-dichloroethane, the major use of 1,2-dichloroethane is in the production of vinyl chloride monomer (VCM, chloroethene) with hydrogen chloride as a byproduct. VCM is the precursor to polyvinyl chloride.
Cl-CH₂-CH₂-Cl → H₂C=CH-Cl + HCl
The hydrogen chloride can be re-used in the production of more 1,2-dichloroethane via the oxychlorination route described above.

When you are using 1,2-Dichloroethane, please be cautious about it as the following:
It is highly flammable and harmful if swallowed. It is toxic by inhalation and if swallowed. Please keep container tightly closed and keep away from sources of ignition - No smoking. Besides, this chemical is irritating to eyes, respiratory system and skin and may cause cancer. When you are using it, do not breathe gas/fumes/vapour/spray (appropriate wording to be specified by the manufacturer). In case of accident or if you feel unwell seek medical advice immediately (show the label where possible).

You can still convert the following datas into molecular structure:
(1)Canonical SMILES: C(CCl)Cl
(2)InChI: InChI=1S/C2H4Cl2/c3-1-2-4/h1-2H2
(3)InChIKey: WSLDOOZREJYCGB-UHFFFAOYSA-N

The toxicity data of 1,2-Dichloroethane is as follows: