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Isobutylene (or 2-methylpropene) is a hydrocarbon with the chemical formula (CH 3) 2 C=CH 2. It is a four-carbon branched alkene (olefin), one of the four isomers of butylene . It is a colorless flammable gas, and is of considerable industrial value.
Diisobutene (also known as Diisobutylene and Isooctene) refers to a pair of organic compounds with the overall formula C 8 H 16.The isomers have the same carbon skeleton but differ in the location of the C=C bond.
Polyisobutene (polyisobutylene) is a class of organic polymers prepared by polymerization of isobutene.The polymers often have the formula Me 3 C[CH 2 CMe 2] n H (Me = CH 3).They are typically colorless gummy solids.
During the expansion of Vietnam some place names have become Vietnamized. Consequently, as control of different places and regions has shifted among China, Vietnam, and other Southeast Asian countries, the Vietnamese names for places can sometimes differ from the names residents of aforementioned places use, although nowadays it has become more ...
Isobutanol (IUPAC nomenclature: 2-methylpropan-1-ol) is an organic compound with the formula (CH 3) 2 CHCH 2 OH (sometimes represented as i-BuOH).This colorless, flammable liquid with a characteristic smell is mainly used as a solvent either directly or as its esters.
Làng Văn has 6 retail stores domestically and abroad including, Paris, France, the historic Asian Garden Mall (Phước Lộc Thọ) now closed [3] in Westminster, California and Ho Chi Minh City, Vietnam. Lang Van is the only US-based Vietnamese production company to operate both in the United States and Vietnam.
The Tai Dam and the Tai Don mostly live in the provinces of the Northwestern Plateau: Điện Biên, Lai Châu, Sơn La and Hoà Bình. The Tai Daeng are found in western part of Nghệ An and Thanh Hóa province where they are a major ethnic group. According to the 1999 General Survey, there were 1,328,725 Thái people in Vietnam.
The Stieng people (Vietnamese: Xtiêng/Stiêng) are an ethnic group of Vietnam and Cambodia. They speak Stieng , a language in the Bahnaric group of the Mon–Khmer languages . Most Stieng live in Bình Phước Province (81,708 in 2009) [ 3 ] of the Southeast region of Vietnam.