The pH balance plays an important role in the chemical makeup of the human body. The term "pH" refers to whether a substance is acid, alkaline (also known as basic), or neutral. The human body is ...
Some natural remedies and practices may help to keep the pH balance of the vagina, which is important to vaginal health. For example, higher pH levels (more alkaline than acidic) may make it more ...
Department of Mechanical Engineering, University of British Columbia, Vancouver, Canada ...
美国最古老的公司之一),其产品包括Carbopol系列流变学调节剂和Pemulen系列聚合物乳化剂 【性状】本品为白色疏松状粉末;有特征性微臭;有引湿性。 【检查】酸度 取本品0.10g,均匀分散溶胀于10ml水中,依法检查(附录Ⅵ H),pH值应为2.5~3.5。 苯 取本品约1g ...
TAGAYTAY CITY – President Ferdinand Marcos Jr. said Thursday that the Philippines remains firm in its position on the West Philippine Sea (WPS) even after China objected to the passage of the new ...
MANILA, Philippines — Hundreds of people fled Friday as Typhoon "Pepito" (international name: Man-Yi) bore down on the Philippines, threatening yet more destruction even as rescuers tried to reach ...
President Ferdinand “Bongbong” Marcos Jr. on Monday called on Filipinos to unite and pray amid the multiple tropical cyclones that have affected the country in the past few weeks. “Our collective ...
The four storms that churned simultaneously in the Western Pacific Ocean in November, battering most parts of the Philippines, is an “unusual” occurrence, the US-based National Aeronautics and Space ...
School of Chemistry, Joseph Banks Laboratories, University of Lincoln, Brayford Pool, Lincoln, Lincolnshire LN6 7TS, U.K.