|
发表于 2023-3-1 17:57:06
|
显示全部楼层
本帖最后由 entropy 于 2023-3-1 18:02 编辑 : G# y2 @4 I; x6 a8 X% Q4 Q5 A3 ], ~
0 ^4 i) J3 A; @) Q; W8 c3 s
alkaline 对应名词 alkali
$ K! d K- T' l5 L; Y, L( ubasic 对应名词 base
: p. E" B$ h; F7 _3 X1 ]! e% K" A
& r5 P( d5 g' Q5 B9 k. rThe terms "base" and "alkali" are often used interchangeably, particularly outside the context of chemistry and chemical engineering.5 e4 v3 I7 ^; W, |4 j4 j6 C9 H# ]
/ E/ i1 b; Y# t U) o8 d
There are various, more specific definitions for the concept of an alkali. Alkalis are usually defined as a subset of the bases. One of two subsets is commonly chosen.7 R% C2 i, e' O, E( i6 ~+ p7 R
9 m% @7 Q. B) K+ j) ~1. A basic salt of an alkali metal or alkaline earth metal[2] (this includes Mg(OH)2 (magnesium hydroxide) but excludes NH3 (ammonia)).
, o1 d: p# Z* U! r& t7 ~+ _
1 }0 |/ i" m+ ?8 w4 i2. Any base that is soluble in water and forms hydroxide ions[3][4] or the solution of a base in water.[5] (This includes both Mg(OH)2 and NH3, which forms NH4OH.)
0 `4 n* C4 F: E# S1 u" A& r8 _2 s- }5 C: N# c
base 是怎么定义的呢?自己看书去。 |
|