Meaning of 指示剂
指示剂 means chemical indicator; a reagent used to test for the presence of a specific compound, element, or ion, or to show changes in chemical properties. Pronounced zhǐ shì jì.
- chemical indicator; a reagent used to test for the presence of a specific compound, element, or ion, or to show changes in chemical properties
Definitions & Examples
Fēn酚
tài酞
shì是
yī一
zhǒng种
cháng常
yòng用
de的
suān酸
jiǎn碱
zhǐ指
shì示
jì剂
,
zài在
jiǎn碱
xìng性
róng溶
yè液
zhōng中
huì会
biàn变
wéi为
fěn粉
hóng红
sè色
。
Phenolphthalein is a commonly used acid-base indicator that turns pink in alkaline solutions.
Zài在
dī滴
dìng定
shí实
yàn验
zhōng中
,
xuǎn选
zé择
hé合
shì适
de的
zhǐ指
shì示
jì剂
duì对
yú于
zhǔn准
què确
pàn判
duàn断
zhōng终
diǎn点
zhì至
guān关
zhòng重
yào要
。
In titration experiments, selecting the appropriate indicator is crucial for accurately determining the endpoint.
Shí石
ruǐ蕊
shì试
zhǐ纸
shì是
yī一
zhǒng种
jiǎn简
dān单
de的
zhǐ指
shì示
jì剂
,
kě可
yǐ以
cū粗
lüè略
cè测
liáng量
róng溶
yè液
de的
suān酸
jiǎn碱
dù度
。
Litmus paper is a simple indicator that can roughly measure the acidity or alkalinity of a solution.
Jīn金
shǔ属
zhǐ指
shì示
jì剂
kě可
yǐ以
yòng用
lái来
cè测
dìng定
shuǐ水
zhōng中
gài钙
měi镁
lí离
zǐ子
de的
hán含
liàng量
。
Metal indicators can be used to determine the content of calcium and magnesium ions in water.