Methyl orange solution 0.1%

Urea

尿素

Potassium Hydrogen Phthalate

Oil bath filling

Potassium hexacyanoferrate(III)

Nickel(II) nitrate hexahydrate

tetra-Sodium diphosphate decahydrate

Copper(II) chloride dihydrate

Chlorine Test

di-Sodium hydrogen phosphate dihydrate

磷酸氢二钠

Naphthol green B (C.I. 10020)