PHYSICAL DATA: White crystals , turns pink on exposure to air and light ·Solubility in water at 20 °C 1000 g/l ·D: 1,272 ·M. P.: 110 °C ·B. P.: 281 °C ·Ign. T.: 605 °C ·Thermal decom. above 281 °C · Vap. press. at 108 șC 1 hPa 

APPLICATIONS: Analytical reagent · Reagent for aldehydes , inverted sugars , alkaloids , Co , Pb , U , V and Zn Synthesis reagent: Synthesis of 2,4-dihydroxybenzoic acid using potassium hydrogen carbonate at atmospheric pressure  · Acetylation with acetic acid in the presence of zinc chloride gives 2,4-dihydroxyacetophenone

Minimum assay (G.C.) 99,0 %
Identity IR p/t.
Melting range 110-112°C

MAXIMUM LIMIT OF IMPURITIES   

Insoluble matter in H2O 0,01 %
Residue on ignition (as SO4) 0,05 %
Acidity (as HCl) 0,004 %
Alkalinity (as NaOH) 0,004 %
Diresorcinol and Phenol p/t.