硫酸钙

硫酸鈣

liúsuāngài

noun

Meanings

1 calcium sulfate (CaSO4)
2 gypsum / food-grade tofu coagulant

Characters

Examples

HSK 7-9

南豆腐通常用硫酸钙作凝固剂。

Nán dòufu tōngcháng yòng liúsuāngài zuò nínggùjì.

Soft southern-style tofu usually uses calcium sulfate as coagulant.

HSK 7-9

医用石膏的主要成分就是硫酸钙。

Yīyòng shígāo de zhǔyào chéngfèn jiùshì liúsuāngài.

The main component of medical plaster of Paris is calcium sulfate.

Tips

usage

硫酸 (sulfate) + 钙 (calcium) = CaSO4 - this is the chemical name for 石膏 (gypsum). In food-processing contexts 硫酸钙 coagulates soy milk into soft 嫩豆腐 or 南豆腐, while 卤水 (nigari, MgCl2) makes firmer 北豆腐.

Stroke Order

硫 liú

酸 suān

钙 gài