an awful smelling colourless liquid.
an aliphatic aldehyde.
Nitrogen, sulfur and halogens are all absent.
Absent are nitogen, sulfur and halogen containing functional groups like amines, amides, cyanides, nitro compounds, sulfonic acids, sulfonamides and alkyl, aryl or acyl halides.
142930
49 to 52 degrees.
A low molecular weight compound.

Well below room temperature.
Typical result for a low molecular weight compound.

Reasonably soluble in water (to give a neutral solution). Very soluble in ether.
A low molecular weight, covalent, somewhat polar and neutral compound.

solvent is deuterochloroform
2032}10373200603

Present are one or more functional groups containing CHO (like aldehydes). Absent is an alkene and/or an aromatic system. Absent are functional groups containing >C=O (like ketones, esters etc). 
151627
thin film
Ծ8?U1,MfsxwdPxϼqL8=Lc~¾ҾfZasfA/>BCC<767989>928@HMR^w|rneYUW^`^blolhZA.''%7Rlľ

Present is one (or more) functional groups containing >C=O (like aldehydes, ketones, esters etc). Absent are O-H, N-H, and S-H containing groups, alkynes and cyanides.
1316171926

031037038039040056057#0580590
58

Absent are chlorine, bromine and iodine containing compounds.
2930
solvent is deuterochloroform.




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#%DD(((CB%%###
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]]]xxttOO00###ؒOO22''<K\duu||Z66(



Present is a CHO (like an aldehyde). Proton ratio is 1:2:3. Absent are alkenyl and aryl protons, O-H, N-H, and S-H containing groups.
1316171926
No significant absorption.














No reaction appeared to take place.
This negative result shows that the unknown is not an alcohol, primary or secondary amine or phenol.
171926
0608
No reaction appeared to take place.
This negative result shows that the unknown is not an amine.

01
No reaction appeared to take place.
This negative result shows that the unknown is not unsaturated or a phenol.

0506
No reaction appeared to take place.
This negative result shows that the unknown is not unsaturated or a phenol.

050608
A reaction appeared to take place.
This result shows that the unknown is easily oxidised, eg a primary or secondary alcohol or an aldehyde.

060813
A copious amount of a yellow precipitate was formed.
This positive result shows that the unknown is an aldehyde or ketone. The yellow colour suggests the carbonyl group is unconjugated.

0506
No reaction appeared to take place.
This negative result shows that the unknown is not a phenol or enol.

060813
No reaction appeared to take place.
This negative result shows that the unknown is not a nitro compound.


A red-purple colour was produced.
This positive result shows that the unknown is an  oxygen-containing compound.


No reaction appeared to take place.
This negative result shows that the unknown is not an amide, cyanide or ester.


No reaction appeared to take place.
This negative result shows that the unknown is not an ester.

0506
No reaction appeared to take place.
This negative result shows that the unknown is not an amide, cyanide or ester.

0506
No reaction appeared to take place.
This negative result shows that the unknown is not a methyl ketone (nor can it be oxidised to one).

050618
No reaction appeared to take place.
This negative result shows that the unknown is not a primary or secondary alcohol.

060813
The reagent's purple colour was discharged.
This positive result shows that the unknown is an alkene or another easily oxidised compound.

05
A red-purple colour was produced.
This positive result shows that the unknown is an aldehyde.

05060818
No reaction appeared to take place.
This negative result shows that the unknown is not a compound with a reactive halogen.

0107
No reaction appeared to take place.
This negative result shows that the unknown is not a compound with a reactive halogen.

0107
A silver mirror formed.
This positive result shows that the unknown is an aldehyde.

05060818












This is an unsuitable derivative.
This is a derivative that is often used for amides, esters and cyanides.
Liquid acid formed that gave an amide mp 78 - 80 degrees.
This is a derivative that is often used for alkyl-substituted aromatic hydrocarbons (with or without halo or nitro substituents) and sometimes for aromatic aldehydes.
This is an unsuitable derivative.
This is a derivative that is often used for carboxylic acids, acyl halides and anhydrides.
This is an unsuitable derivative.
This is a derivative that is often used for alkyl halides, carboxylic acids, acyl halides and anhydrides.
This is an unsuitable derivative.
This is a derivative that is often used for phenols.
This is an unsuitable derivative.
This is a derivative that is often used for primary and secondary amines.
This is an unsuitable derivative.
This is a derivative that is often used for primary and secondary amines.
This is an unsuitable derivative.
This is a derivative that is often used for phenols and aromatic ethers.
This is an unsuitable derivative.
This is a derivative that is often used for alcohols and phenols.
Yellow crystals mp 145 to 147 degrees.
This is a derivative that is often used for aldehydes and ketones.
This is an unsuitable derivative.
This is a derivative that is often used for alcohols and phenols.
This is an unsuitable derivative.
This is a derivative that is often used for aromatic hydrocarbons and related compounds.
White solid mp 36 to 38 degrees.
This is a derivative that is often used for aldehydes and ketones.
This is an unsuitable derivative.
This is a derivative that is often used for alcohols.
This is an unsuitable derivative.
This is a derivative that is often used for amines.
This is an unsuitable derivative.
This is a derivative that is often used for cyanides and nitro compounds.
White solid mp 87 - 89 degrees.
This is a derivative that is often used for aldehydes and ketones.
This is an unsuitable derivative.
This is a derivative that is often used for carboxylic acids, acyl halides and anhydrides.
This is an unsuitable measurement.
This is a measurement that is often used for carboxylic acids.
This is an unsuitable measurement.
This is a measurement that is often used for esters.
 3 


؅
 3 
propanal
propenal
2-methyl-1-propanal
