Ng-I6155

Thallium (III) oxide

Ng-I6164

Thallium (I) nitrate

Ng-I6190

Tin metal

Ng-I62

Lead nitrate,硝酸铅

Ng-I6200

Tin (II) sulfate

Ng-I63

Lead oxide yellow

Ng-I6300

Titanium (IV) oxide

Ng-I6380

Tungstic acid

Ng-I64

Lithium carbonate-powder

Ng-I6400

Tungsten metal-325 mesh

Ng-I6445

Vanadium silicate

Ng-I6450

Vanadyl sulfate

Ng-I6460

Vanadium (III) chloride

Ng-I6465

Vanadium (III) oxide

Ng-I6470

Wood′s alloy-fusible stick

Ng-I6473

Yttrium acetate

Ng-I6475

Yttrium fluoride

Ng-I6490

Zinc arsenate

Ng-I65

Lithium chloride

Ng-I6500

Zinc arsenite