三聚磷酸钠

三聚磷酸鈉

sānjù línsuānnà

noun

Meanings

1 sodium tripolyphosphate (STPP, Na5P3O10)
2 polyphosphate food additive and detergent builder

Characters

to gather; (chem) poly-

Examples

三聚磷酸钠常被用作虾仁等冷冻水产的保水剂。

Sānjù línsuānnà cháng bèi yòngzuò xiārén děng lěngdòng shuǐ chǎn de bǎo shuǐ jì.

Sodium tripolyphosphate is often used as a water-retention agent in frozen shrimp and other seafood.

洗衣粉里的三聚磷酸钠曾经是造成水体富营养化的主要原因之一。

Xǐyīfěn lǐ de sānjù línsuānnà céngjīng shì zàochéng shuǐ tǐ fù yíngyǎng huà de zhǔyào yuányīn zhīyī.

Sodium tripolyphosphate in laundry detergents was once a major cause of aquatic eutrophication.

Tips

grammar

Decompose right-to-left the way chemists do: 钠 = sodium, 酸 = acid, 磷 = phosphorus, 三聚 = 'tripolymer / three-unit condensate.' So 'three-condensed phosphoric-acid sodium' = sodium salt of tripolyphosphoric acid = sodium tripolyphosphate.

Stroke Order

三 sān

聚 jù

磷 lín

酸 suān

钠 nà