硼酸（分子式：H3BO3）別名：原硼酸，正硼酸，是一種無機酸，為白色結晶性粉末，有滑膩手感，無氣味，主要用於消毒、殺蟲、防腐，在核電站控制鈾核分裂的速度，以及製取其他硼化合物。其為白色粉末或透明結晶，可溶於水；有時也會以礦物的形式存在，常存在溶解於某些礦物、火山湖水或溫泉。 WebCH3CH2B(OH)2 E0913 1g 5g Ethylboronic Acid CAS RN: 4433-63-0 CH3 B(OH)2 P1942 1g 5g 25g Propylboronic Acid CAS RN: 17745-45-8 CH3 CHB(OH)2 CH3 I0787 5g 25g Isopropylboronic Acid CAS RN: 80041-89-0 CH3 B(OH)2 B0529 1g 5g 25g Butylboronic Acid CAS RN: 4426-47-5 CH3 B(OH)2 CH3 I0597 5g 25g Isobutylboronic Acid CAS RN: …

Гидроксид бария — Википедия

WebPhenylboronic acid or benzeneboronic acid, abbreviated as PhB(OH) 2 where Ph is the phenyl group C 6 H 5-, is a boronic acid containing a phenyl substituent and two hydroxyl groups attached to boron.Phenylboronic acid is a white powder and is commonly used in organic synthesis.Boronic acids are mild Lewis acids which are generally stable and … WebJun 27, 2015 · 展开全部. 硼酸是一元酸。. 硼酸的酸性来源是由于硼是缺电子原子，能结合水分子中的氢氧根离子，进而释放出质子。. 即. B (OH)₃+2H₂O==== [HO-- B --OH]- + H₃O+. 硼酸是一元极弱酸，但是有些教科书以及一些手册上认为硼酸是三元酸，三级的电离常数pKa1、pKa2、pKa3 ... harry potter wiki romana

有机人名反应——Miyaura硼化反应（Miyaura Borylation …

WebBariumhydroxid ist eine feste, aus farblosen Kristallen bestehende Substanz. Es ist … WebThe pursuit of sustainability is an ongoing process that we strive to meet every day. The ACO Group is a global family business that is one of the world market leaders in the Water-Tech segment. Founded in Schleswig-Holstein in 1946, it operates as a transnational network in over 50 countries. Worldwide, ACO is characterised by a high level of ... Web4-羧基苯硼酸; CAS Number: 14047-29-1; Synonyms: 4-(二羟基硼烷基)苯甲酸,4-硼酸苯甲酸,4-羟基羰基苯基硼酸,4-羧基苯基硼酸,4-羧基苯硼酸,NSC 221170,对硼酸苯甲酸,对羧基苯基硼酸,对羧基苯硼酸; Linear Formula: HO2CC6H4B(OH)2; find Sigma-Aldrich-456772 MSDS, related peer-reviewed papers, technical documents, similar products & more at … harry potter wiki periculum