de·crep·i·tate 
(dĭ-krĕpĭ-tāt′)
(dĭ-krĕpĭ-tāt′)v. de·crep·i·tat·ed, de·crep·i·tat·ing, de·crep·i·tates
v.tr.
To roast or calcine (crystals or salts) until they emit a crackling sound or stop crackling.
v.intr.
To make a crackling sound when roasted.
[New Latin dēcrepitāre, dēcrepitāt- : Latin dē-, de- + Latin crepitāre, to crackle, frequentative of crepāre, to burst, crack.]
de·crep′i·tation n.