The compound was soluble only in concentrated sulfuric acid. 1348 This suggests that the unknown is a neutral, oxygen-containing compound. Solvent is deuterochloroform. ̽ɽਭÂv_O ;t¢ .!9 # ! bVbR 132023303334383941424344454648495154 Unknown 33 is monosubstituted benzaldehyde. Total of ratio is an ODD number. # dummy ms # # # # # Only chlorine was found. 21253135394142434948 Nitrogen, sulfur and the other halogens are absent from the compound. Burnt with a sooty flame leaving no residue. # Unknown 33 is aromatic or unsaturated. It is not a metallic salt of an acid. Below room temperature (m.p. 11 degrees). # A summer liquid and a winter solid. Liquid film )(((((+,,**))()))*)))****))*)(((()))))*+,,,,+++++,,,-./37:>;:94/,,,,,..-/0014668;;>AL\ZOFDC;:964234@DHVePOWnnIELT``cnj[B76679^sqoN<9;DH?>>7338CF:2-,,,+***,-.25=FF?>dY]T<IWcG93.)(&$#"!! !!!"#&->F@<7.,-1:D[whiz^ 132023303334383941424344454648495154 The compound is an aldehyde and a 1,2-disubstituted benzene. 213 to 215 degrees. # A typical value for a liquid. Optically inactive. # The molecule is not chiral. 1.249 # Higher than most organic liquids; suggestive of a halogenated compound. 1.567 (when melted) # A typical value. # # # # # # # dummy cmr # # # # # # # # # # # A yellow precipitate was formed rapidly. # Unknown 33 is an aldehyde or a ketone. No positive result. 3344454651 The unknown is not an alcohol, phenol or acid. # # # No positive reaction could be seen. # The unknown is not an aliphatic aldehyde. # # # No change in colour was seen. 14 The compound is not an ester. # # # No reaction could be seen. # The compound does not contain a reactive halogen. No observable reaction was noted. # The compound is not a methyl ketone. No positive result. # The unknown is not an aliphatic aldehyde. A silver mirror formed rapidly on the walls of the test tube. # A good indication that unknown 33 is an aldehyde. No positive result could be seen. 3344454651 The compound does not contain OH (alcohol) or NH (amine) bonds. # # # Rapid discharge of the purple colour was seen. # Unknown 33 can be easily oxidised. # # # No colour change was observed. 23 Unknown 33 is not a sugar. # # # No reaction was observed. # The unknown is not unsaturated nor is it a phenol. No reaction could be detected. # # No change was seen. # The unknown is not a phenol. # # # No reaction appeared to take place. # A reactive halogen is not present in the unknown. # # # # # # # # # # # # # # # # # # A rapid reaction occurred which gave a solution. # Typical behaviour of a neutral, oxygen-containing compound. # # # # # # No positive result. # The unknown is not an aliphatic aldehyde. # # # No reaction took place. # This shows that the unknown is not a phenol nor is it unsaturated. No reaction. # Absent are groups like esters, acetals, amides and nitriles. No positive result. 3344454651 Unknown 33 is not an alcohol. # # # # # # # # # # # # # # # # # # colourless liquid 01050929 0 618385939697 Colourless solid m.p. 155-157 degrees. Red solid m.p. 237-241 or 248-250 degrees. Crystals m.p. 225-230 degrees. Solid m.p. 85-86 degrees. Red crystals m.p. 209-214 degrees. Solid m.p. 73-76 degrees. 2 rbĝe_ rbĝe_ liquid aromatic aldehyde 2 o-chlorobenzaldehyde m-chlorobenzaldehyde