-
817.
Oxigeno disuelto en agua
Subjects
Oxygen
-
818.
Oxyacids
Subjects
-
819.
Oxygen
Subjects
Nonmetals
-
820.
Ozone
Subjects
OxygenChemical tests and reagents
-
821.
Ozonization
Subjects
Chemical reactions
-
822.
Paint
Subjects
Industrial paintingFinishes and finishingProtective coatings
-
823.
Palladium
Subjects
-
824.
Pamoic acid
Subjects
-
825.
Paper chromatography
Subjects
Chromatography
-
826.
Paper electrophoresis
Subjects
Electrophoresis
-
827.
Paramagnetism
Subjects
-
828.
Particles
Subjects
Soils
-
829.
Patina of metals
Subjects
Metals finishing
-
830.
Pauson-Khand reaction
Subjects
Ring formation (Chemistry)
-
831.
Pectin
Subjects
Polysaccharides
-
832.
Pentoses
Subjects
Monosaccharides
-
833.
Peptides
Subjects
Proteins
-
834.
Perchloric aci
Subjects
Inorganic acids
-
835.
Percolation
Subjects
Solvents
-
836.
Perfumes
Subjects
Personal beautyCosmeticsEssences and essential oilsOdorsToilet preparations
-
837.
Perfumes industry
Subjects
Cosmetics industry
-
838.
Periodic law
Subjects
Chemical elementsPhysical and theoretical chemistry
-
839.
Periodic table of the elements
Subjects
Chemical elementsPhysical and theoretical chemistry
-
840.
Permanganates
Subjects
Manganese
Last updated dated: 21/02/2026