Material List

We provide transportation and disposal services for hazardous and non-hazardous waste material. The following tables displays the products we cover, as well as descriptions recognized by the U.S. Department of Transportation (DOT).

Product Material Description DOT Description
Copper sulfate (crystal) A blue crystal solid, often wet with sulfuric acid and containing traces of
other metals. Generated by a centrifuge or crystallizer used to recover spent
peroxide-sulfuric micro-etch solution in a printed circuit shop. Also produced
by copper and brass fabricators using peroxide-sulfuric based pickle solution or bright dip.
RQ UN3077 Environmentally Hazardous Substance Solid, 9, PG III

Note: Bulk shipments also require the words “marine pollutant”

Copper sulfate (solution) (Micro-etch and Brass) – A blue solution containing sulfuric acid and traces of other
metals. It is produced by circuit board micro-etchants (peroxide-sulfuric and sodium
or ammonium persulfate based) or acid copper sulfate plating solution. Can also be a
copper plating tank strip or a bright dip for copper or brass.
RQ UN3264, Corrosive Liquid, Acidic, Inorganic, N.O.S. (sulfuric acid, cupric
sulfate), 8, PG IINote: Bulk shipments also require the words “marine pollutant”
Copper (cupric) chloride solution A green-black solution containing hydrochloric acid and containing traces of other
metals. Used primarily to etch printed circuit boards but may also be generated by
copper fabricators as a bright dip or pickle solution.
Oxford. Spent cupric chloride (Oxford process)
RQ UN2802, copper chloride solution, 8, PG IINote: Bulk shipments also require the words “marine pollutant”Chlorine. Spent cupric chloride (chlorine process)
RQ UN3264, corrosive liquid, acidic, inorganic, n.o.s. (hydrochloric
acid, copper chloride), 8, PG II
F006 Sludge
Spent copper hydroxide and/or nickel hydroxide
F006 with only nickel (and traces of other metals) will be bright green. F006 with
only copper (and traces of other metals) will be bright blue or very black. This waste
stream should be profiled on a case-by-case basis, since the metals analysis can be so
variable. Generated by the waste water treatment system. At plants processing various
metals, a segregated batch waste water treatment system is more likely to generate a
sludge suitable for recycling.
RQ UN3077, environmentally hazardous substance, solid, N.O.S.
(Copper Hydroxide and/or nickel hydroxide), 9, PG III
Nitric Acid
Spent copper nitrate solution
A dark blue solution containing nitric acid and traces of other metals. At
printed circuit shops the solution is used to strip plating racks. If the
racks have only copper on them, the spent solution is more useful. Stripping
racks that also have solder on them, along with copper, is less useful for
recycling. Nitric acid with copper is also generated by copper fabricators
doing bright dipping or pickling.
RQ UN3264, corrosive liquid, acidic, inorganic, N.O.S. (copper nitrate,
nitric acid), 8, PG II
Spent Solder (tin) stripper A solution containing nitric acid or ammonium bifluoride and tin and lead. There
are various formulas for solder (tin) strippers. The one Phibro-Tech is most
interested in is the nitric acid product. The profile form must distinguish the
type of stripper to be accepted.
RQ UN3264, waste corrosive liquid, acidic, inorganic, N.O.S. (Contains nitric
acid, and/or tin, tin-lead, and/or ammonium bifluoride and/or ferric nitrate),
8, PG II
Spent Alk-Cu-Strip® copper etchant Dark blue solution with a strong ammonia odor, containing copper and traces of
other metals. Alk-Cu-Strip is a Phibro-Tech proprietary product. Other chemical
companies make similar ammonia-based copper etchants and strippers. Generated by
aerospace and automotive companies and their subcontractor platers and heat treaters.
Used to strip copper from heat treated parts (nitriding, carbo-nitriding, and
carbarizing).
RQ UN3266, corrosive liquid, basic, inorganic, N.O.S., (copper tetraamine dichloride),
8, PG II
Spent Ferric chloride solution A dark brown-green solution containing hydrochloric acid and various metals.
Used as an etchant for copper, stainless steel and other metals. Only recycled
at Phibro-Tech Santa Fe Springs, CA.
RQ UN 2582, waste ferric chloride solution, 8, PG III
Spent alkaline etchant A dark blue solution with a strong ammonia odor, containing copper and traces
of other metals. Spent alkaline etchant recycling is included in the sale of
fresh etchant products.
RQ UN3266, corrosive, liquid, basic, inorganic, N.O.S., (copper tetraamine
dichloride), 8, PG II
Miscellaneous inorganic acid or base Wastes are treated and disposed of. Recycling only on a case-by-case basis. Miscellaneous Inorganic Acid or Base (DOT descriptions will vary, depending on
exact chemical composition)
Nickel plating solution and nitric acid strip Nickel plating solution and nitric acid strip – a dark green solution. Nickel
plating solution contains nickel sulfate and nickel chloride or nickel sulfamate.
Any type of electrolytic nickel plating solution is acceptable. Nickel plating
solution is generated primarily by plating shops and to a small extent by printed
circuit shops. At electrolytic plating shops nitric acid is used to strip plating
racks. The racks may have copper, nickel, and chromium on them or just nickel and
chromium. In either case, the spent nitric acid is useful for recycling. Phibro-Tech
has a proprietary recovery process for nitric acid containing copper and nickel.
Nitric acid used to strip nickel from stainless steel or aluminum parts is also
useful for recycling.
Spent Nitric Acid Rack Strip
RQ UN3264, Corrosive liquid, acidic, inorganic, N.O.S., (Nitric Acid, Nickel
and/or Copper Nitrate), 8, PG IISpent nickel chloride and/or nickel sulfate solutionsRQ UN3082, environmentally hazardous substance, liquid, N.O.S., (nickel chloride
and/or nickel sulfate solution), 9, PG III

 

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