How to Write 碱 (jiǎn) — Meaning “Alkali / Soda / Base”

Picture a stone (石) that tastes extremely salty (咸) — that is an alkali. You can imagine licking a rock and getting a bitter, soapy taste, which reminds you that alkali is the opposite of an acid. This visual link between "stone" and "salty" helps fix the character in your memory.

Write the left radical 石 first (three strokes), then the right part 咸 (eleven strokes). The right side has a 口 (mouth) inside a 戈 (spear) shape; a common mistake is making the 口 too large or forgetting the small horizontal stroke in 戈. Keep the left side narrow and the right side balanced for proper proportions.

While all three share the 石 radical, 碱 contains 咸 (salty) inside, 硝 contains 肖 (meaning "similar" or "like"), and 硪 contains 我 (meaning "I" or "self"). In meaning, 碱 refers to alkalis (base chemicals), 硝 refers to saltpeter (a type of salt used in gunpowder), and 硪 refers to a road-rolling tool. Their pronunciations and usage contexts are completely different.

碱 appears in chemistry and food preparation, such as 碱水 (alkaline water used to make mooncakes and noodles) and 纯碱 (soda ash for manufacturing glass or cleaning). In daily life, 强碱 describes strong bases like drain cleaner. Culturally, 碱水 is a traditional ingredient in Chinese mooncakes, giving them their unique golden-brown color and chewy texture.

Common words containing 碱 include: 碱水 (jiǎn shuǐ) — Alkaline water / Lye; 强碱 (qiáng jiǎn) — Strong base, strong alkali; 纯碱 (chún jiǎn) — soda ash; sodium carbonate.