INFORMATION RETRIEVAL

ASSIGNMENT 2 Knovel/ChemNetBase

 

 

For this assignment (Questions 1-2), answer the questions for the number assigned to you, using the Knovel database only.  For Question 3-5, use the compound that you have been assigned for the semester. Print off and attach answers.  Highlight and label your answers, where appropriate.

 

1. Find the information below for:

 

  1. Benzyl dichloride
  2. Hexachlorobenzene
  3. Decafluorobutane
  4. 3-ethyl pentane
  5. Acetone azine
  6. Allyltrimethylsilane
  7. 2,1-Benzisoxazole
  8. Benzyl fluoride
  9. 1-phenylethyl bromide
  10. Butyl nitrite
  11. Dichlorophos
  12. Ethyl Oxophenylacetate

 

Give the registry number, refractive index, molecular formula, and two synonyms for the compound.

 

  Refractive index: ___________Reg. No.___________________Mol. Formula_____________

 

  Synonym:____________________________________________________________________

 

  Synonym:____________________________________________________________________

 

 

2. For the number assigned to you, identify a compound that has a the following combination of boiling point (degrees C) and density.

Boiling Point                 Density

1. 66-68                       1.071

2. 328.6-330                0.782

3. 126.9-130.9            1.199

4. 125.9-133.9             0.767

5. 49-50                       1.866

6.295                           0.958

7. 168-170                   0.876

8. 26.9-30.2                 0.62

9. 180-184                   1.002

10. 63-66                     1.103

11. 176.9-184.9           0.996

12. 204-209                 0.991

  Name of this compound:____________________________________________

 

Registry number of this compound:___________________________________

 

Once you determine the compound, locate its vapor pressure, and create a graph of vapor pressure vs. temperature using a live equation.

 

 

3. Using Sax’s Dangerous Properties of Industrial Materials, research your compound. 

1.      Give its hazard rating and explain the rating.

2.      Write out, as fully as possible, one toxicity reference.

3.      Compare and contrast an MSDS sheet for your compound and Sax.

4.      Which source would you use first for the toxicity of a compound, Sax or MSDS sheet?  Why?

5. Cite your source.

 

 

4. For your compound, find as many of these physical properties below as possible in Knovel. For each property, identify the value given, and identify and cite the source.  If no information is available, so state.

                                                  i.      Melting point

                                                ii.      Boiling point

                                              iii.      Refractive Index

                                              iv.      Solubility

                                                v.      Density

 

 

5. Use ChemNetBase/Combined Chemical Dictionary and research your compound.

  1. Print off the record.
  2. Cite your source.
  3. Compare and contrast Knovel, Handbook of Chemistry and Physics, and ChemNetBase for information found and ease of use.
  4. Which do you prefer and why?