Click here to make tpub.com your Home Page

Page Title: Red phosphorus
Back | Up | Next

Click here for thousands of PDF manuals

Google


Web
www.tpub.com

Home

   
Information Categories
.... Administration
Advancement
Aerographer
Automotive
Aviation
Construction
Diving
Draftsman
Engineering
Electronics
Food and Cooking
Logistics
Math
Medical
Music
Nuclear Fundamentals
Photography
Religion
   
   

 

Share on Google+Share on FacebookShare on LinkedInShare on TwitterShare on DiggShare on Stumble Upon
Back
Determination of compositions
Up
Simulator, Booby Trap, Whistling, M119 Parts for and Loading, Assembling and Packing
Next
Scratcher composition



img
MIL-S-10522K (PA)
composition, 0.5300 plus or minus 0.0010 gm. shall be transferred
to a 150 ml. beaker and 25 ml. of 12N hydrochloric acid added.
The beaker and contents shall be heated on a steam bath for
30 minutes, stirred occasionally, and then filtered with the
aid of a tared, medium porosity, glass crucible and suction.
The beaker and contents of the crucible shall be washed with
a two-percent solution of hydrochloric acid and finally with
four 5 ml. portions of water.  The crucible and residue shall
be dried in an oven maintained at 100 plus or minus 5 degrees
C. for one hour, cooled in a desiccator for 15 minutes, and
weighed.  The loss in weight of the crucible and contents
shall be calculated to percentage of red phosphorus soluble
in 12N hydrochloric acid,  The factor represented by the
letter E, given in the equation for calculating the percentage
of' antimony sulfide, shall be calculated as follows
where:
F = percent solubility of the red phosphorus used in the
composition, expressed as a decimal fraction.
G = percent of volubility of the red phosphorus subtracted
from 100 and the result expressed as a decimal fraction.
4.5.2.1.1.2 In the course of analysis of samples of match
head composition, the volubility In hydrochloric acid of red
phosphorus shall be recorded whenever practicable.
4.5.2.1.2 Red phosphorus. - The residue obtained in
4.5.2.1.1 shall be transferred from the glass crucible to a
150 ml. glass beaker with the aid of a stirring rod and five
5 ml. porti. ons of 15N nitric acid. The crucible shall be
rinsed with four 5 ml. portions of distilled water, and the
rinsings caught in the beaker.  The contents of the beaker
shall be heated on a steam bath for one hour and filtered
into the previously used crucible using suction. The beaker
and contents shall be washed with four 5 ml. portions of
distilled water.  The crucible and residue shall be dried in
an oven maintained at 100 plus or minus 5 degrees C. for one
hour, cooled In a desiccator for one hour and weighed.
Percentage of red phosphorus In the sample shall be calculated
as follows:
36

Privacy Statement - Press Release - Copyright Information. - Contact Us

Integrated Publishing, Inc.
9438 US Hwy 19N #311 Port Richey, FL 34668

Phone For Parts Inquiries: (727) 755-3260
Google +