Compression Packing Technical Manual - RevBase
Compression Packing Technical Manual - RevBase
Compression Packing Technical Manual - RevBase
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pH Values<br />
The scientific shorthand for indicating the level of acidity<br />
or alkalinity of a substance is the pH value. The scale is<br />
logarithmic, making lye, at 13, ten times as alkaline as<br />
ammonia at 12.<br />
ACIDIC<br />
ALKALINE / CAUSTIC<br />
Battery<br />
Acid<br />
Lemon<br />
Juice<br />
Acid Rain<br />
Vinegar<br />
Seawater and Baking<br />
Soda<br />
Distilled<br />
Water<br />
Ammonia<br />
Lye<br />
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14<br />
Severe Medium Mild to Medium Medium Severe<br />
Service Service Service Service Service<br />
Common Oxidizers<br />
Oxidizers act as a catalyst and cause hydrocarbons to combine<br />
with oxygen and cause breakdown of the fiber. Here is<br />
a partial listing of the most commonly used strong oxidizers.<br />
(A complete listing is available from Garlock Applications<br />
Engineering.)<br />
(a) Fluorine, used as an oxidizer or rocket fuel.<br />
(b) Sulfur Trioxide, used to make sulfuric acid.<br />
(c) Aqua Regia (nitric and hydrochloric acid), used to dissolve<br />
metals.<br />
(d) Sodium Peroxide, used in dyeing, paper and oxy-gen<br />
generation.<br />
(e) Oleum (fuming sulfuric), used in detergent and explosive<br />
manufacturing.<br />
(f) Perchloric Acid, used in the manufacturing of explosives,<br />
esters and medicine.<br />
(g) Sulfuric Acid, greater than 75% and over 250°F, the most<br />
widely-used industrial chemical.<br />
(h) Chloric Acid, greater than 10% and over 200°F, ignites<br />
organic materials on contact.<br />
(i) Ferric Chloride, greater than 50% and over 200°F, used<br />
for sewage treatment, photography, medicine, etching,<br />
feed additives and oxidizing disinfectant.<br />
(j) Nitric Acid, used in fertilizer, explosives, etching, medicine,<br />
dyeing and drugs.<br />
(k) Chlorous Acid, greater than 10% and over 200°F.<br />
(I) Iodine, greater than 5% and over 200°F, used in soaps,<br />
medicine, some lubricants, dyes and salt.<br />
(m) Hydrofluoric Acid, greater than 40% and over 200°F,<br />
used for pickling, purification, dissolving ores, cleaning<br />
castings, etching, cleaning stone and brick, and<br />
fermentation.<br />
(n) Sodium Hypochlorite, greater than 5%, used in textiles,<br />
water purification and bleaching pulp and paper.<br />
(o) Sodium Chlorate, greater than 5%, used as bleach for<br />
paper pulp, medicine and leather textiles.<br />
(p) Calcium Chlorate, greater than 5%, used in pyrotechnics<br />
and photography.<br />
A-29