Library Resources for Chem 303L

1
Library Resources for Chem 303L

• Your pre and post labs in Chem 303 require you
  to use several handbooks.
• Todays class will provide you with the
  knowledge to use these tools efficiently.
• Help
• Bruce Neville, Chemistry Librarian
• bneville_at_unm.edu, 277-4760
• Reference Desk 277-4412

2
Post Lab Literature Assignment Practice Compounds

• 1A. diethyl ether Aldrich Catalog
• 1B. 2-methylindole Aldrich Catalog
• 2A. 2-chloro-5- CRC Handbook
• methylphenol
• 2B. 3,5-dinitrotoluene CRC Handbook
• 3. dibutylamine MSDS

3
Post Lab Question 2

• Using the CRC Handbook of Chemistry and Physics
  make a table with the two compounds assigned to
  you. The headings for the table are shown below.
  
• Compound CAS MW mp/bp Density
  Solubility Liquid/
• No. (C) (g/ml) Solid
• 2A. 2-chloro-5-methylphenol
• 2B. 3,5-dinitrotoluene

4
CSEL has many editions of the CRC Editions 84
and newer are easier to use. Dont confuse this
with other CRC handbooks.
5
CRC Sample Page
Synonym

• Chemicals are arranged alphabetically
• Different purities and forms
• Usually the first entry for a compound is what
  you want.

CAS RN
Physical Form
mp/bp
MW
Solubility
6
Abbreviations used in the organic compounds
listings. Page 3-2 of the CRC.
7
3,5-dinitrotoluene
Synonym Index resides at the end of the Physical
Constants of Organic Compounds Table. (Page
number will vary with year.)
Entry numbers
8
Entry numbers
3,5-dinitrotoluene 7210
9
(No Transcript)
10
(No Transcript)
11
(No Transcript)
12
(No Transcript)
13
(No Transcript)
14
Post Lab Question 2

• Compound CAS MW mp/bp
  Density Solubility Liquid/
• No. (C) (g/ml) Solid
• 2A. 2-chloro- 615-74-7 142.583 45.5/196
  1.21515 very soluble solid
• 5-methylphenol in water
• 2B. 3,5-dinitro- 618-85-9 182.134 93 sub
  1.2772111 slightly solid
• toluene (sublimes)
  soluble in
• water and
• ethanol