zhǐ
shì

technical
noun

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
tài
shì
zhǒng
cháng
yòng
de
suān
jiǎn
zhǐ
shì
 
zài
jiǎn
xìng
róng
zhōng
huì
biàn
wéi
fěn
hóng
 

Phenolphthalein is a commonly used acid-base indicator that turns pink in alkaline solutions.

Zài
dìng
shí
yàn
zhōng
 
xuǎn
shì
de
zhǐ
shì
duì
zhǔn
què
pàn
duàn
zhōng
diǎn
zhì
guān
zhòng
yào
 

In titration experiments, selecting the appropriate indicator is crucial for accurately determining the endpoint.

Shí
ruǐ
shì
zhǐ
shì
zhǒng
jiǎn
dān
de
zhǐ
shì
 
lüè
liáng
róng
de
suān
jiǎn
 

Litmus paper is a simple indicator that can roughly measure the acidity or alkalinity of a solution.

Jīn
shǔ
zhǐ
shì
yòng
lái
dìng
shuǐ
zhōng
gài
měi
de
hán
liàng
 

Metal indicators can be used to determine the content of calcium and magnesium ions in water.

Relations

Measure Words

/ zhǒng
Primary
/
/ píng