Lorillard
Ph of Smoke Study for Nap Project
Fields
- Author
- Chen, L.L.
- Area
- MINNEMEYER/OFFICE
- Type
- MEMO, MEMORANDUM
- OUTL, OUTLINE
- Alias
- 00044939/00044940
- Site
- G46
- Recipient
- Minnemeyer, H.J.
Document Images
MEMORANDUM
June 4, 1976
TO: Dr. H. J. Minnemeyer
FROM: L. L. Chen
SUBJECT: pH of Smoke Study for NAP Project
Per your request of June 2, I am transmitting to you a
tentative outline for a summary report on the pH of smoke,
which is substantially the same as related to you at the last
NAP group meeting. I would be open to any suggestions as to
the scope of this report as well as any other topics which should
be included. Since I am involved in several other projects such
as moisture hysteresis,and remote process monitor, I cannot give
a specific date for the completion of this report. In addition,
I am also setting up a data base on the general smoke chemi-Ary
problem~from a mechanistic viewpoint considering only the major
smoke components. This will hopefully be compatible with, but not
duplicate, the library's effort to set up a massive data base
incorporating all known smoke components. This undertaking,
while it contributes to an understanding of the pH of smoke, may
be of sufficient magnitude to justify a separate report. I have
made short comments after each outline heading to suggest the
coverage intended.
pH of Smoke
I. Methodology
A. Historical - Sensabaugh, Elson and Grob approaches
B. Measurement parameters - what is being measured?
Whole smoke, vapor or particulate phase? Effect of
butt length, buffers, wetting agents, etc. Properties
of glass-calomel electrodes.
C. Evaluation - Is absolute measurement necessary? Are
present methods appropriate?
C
II. Input parameters affecting pH of
smoke
A. Leaf Parameters
1. Leaf analysis - nicotine, sugar, etc. contents.
2. Agronomic - stalk position, curing procedures.
3. Blend composition.
H. J. Minnemeyer - 2 - June 4, 1976
B. Smoke chemistry - Origin and' transformation of smoke
components by various mechanisms, e.g. volatilization,
distillation, sublimation, pyrolytic degradation,
pyrosynthesis; precursor relationships; effects of
temperature and additives.
C. Manufacturing parameters - filter design, paper porosity
and cigarette construction.
III. Effect of pH on Smoke Delivery
A. Shifting of species distribution, e.g. nicotine, HCN, H2S.
B. Effects on other properties, such as nicotine absorption,
toxicity and inhalability.
C. Question of taste.
IV. Targeting of an optimum pH.
A. Survey of Lorillard's products vs. competitor's products.
B. Can an optimum pH be defined - what parameters determlgn
.. e
the optimum point?
C
~~c.... ~.
Lei on L. Chen
LLC:lmh
c
