De or het smelting?

The correct Dutch article is:

de smelting

  • Plural: de smeltingen
Rule Words ending in -ing: almost always de. See the rule
Meaning (Dutch) het smelten

How to use smelting

the smeltingde smelting
this smeltingdeze smelting
that smeltingdie smelting
our smeltingonze smelting
your smeltingjouw smelting
every smeltingelke smelting
which smelting?welke smelting?
a big smelting / the big smeltingeen grote smelting, de grote smelting
the smelting (plural)de smeltingen, deze smeltingen

Dutch words ending in smelting

samensmelting | kernsmelting | versmelting

In compound words, the last part decides the article. See the rule

Meaning, plural, diminutive, pronunciation and translations: WikiWoordenboek (Dutch Wiktionary) (CC BY-SA 4.0). Example sentences: Tatoeba (CC BY 2.0 FR).