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Opel engine codes explained 1. = Emissions controls 2./3. = Displacement (in tenths of liters) 4. = Compression ratio 5. = Fuel feed (only on gasoline engines) 5./6. = Special conditions
1,4-Butanediol, also called Butane-1,4-diol (other names include 1,4-B, BD, BDO and 1,4-BD), [5] is a primary alcohol and an organic compound with the formula HOCH 2 CH 2 CH 2 CH 2 OH. . It is a colorless viscous liquid first synthesized in 1890 via acidic hydrolysis of N,N'-dinitro-1,4-butanediamine by Dutch chemist Pieter Johannes Dekkers, who called it "tetramethylene glyco
Originally debuting as either a 1.0 L (973 cc) straight-3 or 1.2 L (1,199 cc) straight-4; a 1.4 L (1,364 cc) I4 variant was added with the introduction of the second generation, replacing the 1.4 L Family 1 engine. The Family 0 engines were produced by Opel Wien in Vienna/Aspern (Austria), by GM in Bupyeong (Korea) and Flint (Michigan, USA).
It features a Bosch Motronic 2.8.1 engine management system (Omega), with later examples featuring M2.8.3 (Calibra 1994, Vectra 1995) and a compression ratio of 10.8:1. For 1994, in order to meet more stringent emissions requirements, a secondary air injection system and an EGR valve were added to the C25XE and it became the X25XE .
1,4-Butynediol is a precursor to 1,4-butanediol and 2-butene-1,4-diol by hydrogenation. It is also used in the manufacture of certain herbicides, textile additives, corrosion inhibitors, plasticizers, synthetic resins, and polyurethanes. It is the major raw material used in the synthesis of vitamin B 6. [5]
1,4-Butanedithiol is an organosulfur compound with the formula HSCH 2 CH 2 CH 2 CH 2 SH. It is a malodorous, colorless liquid that is highly soluble in organic solvents. The compound has found applications in biodegradable polymers. [2]
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