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%ما هو (من)٪ 1 - تعريف
WIKIMEDIA DISAMBIGUATION PAGE
Quat (disambiguation)
Lê Quát
VIETNAMESE PHILOSOPHER
Le Quat
Lê Quát () was a 14th-century Vietnamese Confucian mandarin of the Trần Dynasty.Việt Nam: Borderless Histories - Page 67 Nhung Tuyet Tran, Anthony Reid - 2006 "In this first formal attack in 1370, a Confucian official named Lê Quát attempted, without much success, to brand Buddhism as heretical and to promote Confucianism.
Quaternary ammonium cation
![[[Distearyldimethylammonium chloride]], an early generation [[fabric softener]] with low [[biodegradability]] that was phased out.](https://commons.wikimedia.org/wiki/Special:FilePath/C18x2Me2Cl.png?width=200 "[[Distearyldimethylammonium chloride]], an early generation [[fabric softener]] with low [[biodegradability]] that was phased out.")
 related to fabric softeners.png?width=200 "Another diesterquat, a contemporary fabric softener.")
CLASS OF CATION CONTAINING NITROGEN WITH 4 SUBSTITUENTS
QUATS; Quaternary ammonium salt; Quaternary ammonium compound; Quats; Quaternary ammonium; Quaternary ammonium salts; Quaternary ammonium compounds; Quaternary amine; Tetraalkylammonium; Quaternary ammonium cations; Quat salt; Quaternary amines; Quaternary ammonium ion; Quaternary ammonium halide; Quat salts
In chemistry, quaternary ammonium cations, also known as quats, are positively charged polyatomic ions of the structure , R being an alkyl group or an aryl group. Unlike the ammonium ion () and the primary, secondary, or tertiary ammonium cations, the quaternary ammonium cations are permanently charged, independent of the pH of their solution.
ويكيبيديا
Quat
Quat may refer to:
- Quat (surname), a Chinese surname
- Quaternary ammonium cation, a class of chemical molecules used as a disinfectant, surfactant, drug etc.
- Quaternion, a non-commutative extension of the complex numbers
- Quaternary (disambiguation), referring to four parts, divisions, or sets.
- Khat, an African plant whose leaves are chewed as a stimulant
- Phan Huy Quát, former prime minister of South Vietnam
أمثلة من مجموعة نصية لـ٪ 1
1. Later, the dialogues will be scheduled weekly, said Mr Quat.
2. The Dung Quat Oil Refinery, a US $2.5–billion investment of the Vietnam Oil and Gas Corporation (PetroVietnam), is being built in the Dung Quat Economic Zone in Binh Son district‘s Binh Tri and Binh Thuan communes.
3. Out goes the River Cafe and Raymond Blanc‘s double Michelin–starred Le Manoir aux Quat‘ Saisons.
4. Blanc, whose Maison au Quat‘ Saisons was ranked 28th in the survey.
5. PM Dung inspects the construction site of the Dung Quat oil refinery.