Archive of the former Yahoo!Groups mailing list: Homebrew PCBs

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Cupric chloride is another commonly used compounds in PCB etching.
Although not as nasty as ferric chloride, there are some precautions
to be mindful of when using this stuff.

I think it is a good idea to know the characteristics of all of these
materials,
especially if you are using them around your household.

Roland F. Harriston
∗∗∗∗∗∗∗∗∗∗∗∗∗∗∗∗∗∗∗∗∗∗∗∗∗∗∗∗∗∗∗∗∗∗

MSDS Number: ∗C5863∗ ∗ ∗ ∗ ∗ ∗ /Effective Date:∗ 02/23/06∗ ∗ ∗ ∗ ∗ ∗
Supercedes:∗ 11/10/05∗/
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CUPRIC CHLORIDE

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1. Product Identification

∗Synonyms:∗ copper (II) chloride, dihydrate
∗CAS No.:∗ 7447-39-4 (Anhydrous); 10125-13-0 (Dihydrate)
∗Molecular Weight:∗ 170.48
∗Chemical Formula:∗ CuCl2 2H2O
∗Product Codes:∗
J.T. Baker: 1792
Mallinckrodt: 4824

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2. Composition/Information on Ingredients


Ingredient CAS No Percent Hazardous
--------------------------------------- ------------ ------------ ---------

Copper Chloride 7447-39-4 100% Yes


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3. Hazards Identification

∗Emergency Overview∗
--------------------------
∗WARNING! HARMFUL IF SWALLOWED. CAUSES IRRITATION TO SKIN, EYES AND
RESPIRATORY TRACT.∗

∗SAF-T-DATA^(tm) ∗ Ratings (Provided here for your convenience)
-----------------------------------------------------------------------------------------------------------

Health Rating: 2 - Moderate (Life)
Flammability Rating: 0 - None
Reactivity Rating: 1 - Slight
Contact Rating: 3 - Severe (Corrosive)
Lab Protective Equip: GOGGLES & SHIELD; LAB COAT & APRON; VENT HOOD;
PROPER GLOVES
Storage Color Code: White (Corrosive)
-----------------------------------------------------------------------------------------------------------


∗Potential Health Effects∗
----------------------------------

∗Inhalation:∗
Causes irritation to respiratory tract, symptoms may include
coughing, sore throat, and shortness of breath. May result in
ulceration and perforation of respiratory tract. When heated, this
compound may give off copper fume, which can cause symptoms similar
to the common cold, including chills and stuffiness of the head.
∗Ingestion:∗
May cause burning pain in the mouth, esophagus, and stomach.
Hemorrhagic gastritis, nausea, vomiting, abdominal pain, metallic
taste, and diarrhea may occur. If vomiting does not occur
immediately systemic copper poisoning may occur. Symptoms may
include capillary damage, headache, cold sweat, weak pulse, kidney
and liver damage, central nervous excitation followed by depression,
jaundice, convulsions, blood effects, paralysis and coma. Death may
occur from shock or renal failure.
∗Skin Contact:∗
Causes irritation, redness, and pain. Some individuals may develop
copper allergies.
∗Eye Contact:∗
Causes severe irritation with symptoms of redness, pain, blurred
vision, discoloration, and possible eye damage.
∗Chronic Exposure:∗
Prolonged or repeated skin exposure may cause dermatitis. Prolonged
or repeated exposure to dusts of copper salts may cause
discoloration of the skin or hair, blood and liver damage,
ulceration and perforation of the nasal septum, runny nose, metallic
taste, and atrophic changes and irritation of the mucous membranes.
∗Aggravation of Pre-existing Conditions:∗
Persons with pre-existing skin disorders, impaired liver, kidney, or
pulmonary function, glucose 6-phosphate-dehydrogenase deficiency, or
pre-existing Wilson's disease may be more susceptible to the effects
of this material.

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4. First Aid Measures

∗Inhalation:∗
Remove to fresh air. If not breathing, give artificial respiration.
If breathing is difficult, give oxygen. Call a physician.
∗Ingestion:∗
Induce vomiting immediately as directed by medical personnel. Never
give anything by mouth to an unconscious person. Call a physician
immediately.
∗Skin Contact:∗
In case of contact, wipe off excess material from skin then
immediately flush skin with plenty of water for at least 15 minutes.
Remove contaminated clothing and shoes. Wash clothing before reuse.
Call a physician.
∗Eye Contact:∗
Immediately flush eyes with plenty of water for at least 15 minutes,
lifting lower and upper eyelids occasionally. Get medical attention
immediately.

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5. Fire Fighting Measures

∗Fire:∗
Not considered to be a fire hazard.
∗Explosion:∗
Not considered to be an explosion hazard.
∗Fire Extinguishing Media:∗
Use any means suitable for extinguishing surrounding fire. Water
spray may be used to keep fire exposed containers cool.
∗Special Information:∗
In the event of a fire, wear full protective clothing and
NIOSH-approved self-contained breathing apparatus with full
facepiece operated in the pressure demand or other positive pressure
mode.

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6. Accidental Release Measures

Ventilate area of leak or spill. Keep unnecessary and unprotected
people away from area of spill. Wear appropriate personal protective
equipment as specified in Section 8. Spills: Pick up and place in a
suitable container for reclamation or disposal, using a method that
does not generate dust. US Regulations (CERCLA) require reporting
spills and releases to soil, water and air in excess of reportable
quantities. The toll free number for the US Coast Guard National
Response Center is (800) 424-8802.


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7. Handling and Storage

Keep in a tightly closed container, stored in a cool, dry,
ventilated area. Protect against physical damage. Isolate from
incompatible substances. Containers of this material may be
hazardous when empty since they retain product residues (dust,
solids); observe all warnings and precautions listed for the product.

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8. Exposure Controls/Personal Protection

∗Airborne Exposure Limits:∗
-OSHA Permissible Exposure Limit (PEL):
1 mg/m3 (TWA) for copper dusts & mists as Cu
-ACGIH Threshold Limit Value (TLV):
1 mg/m3 (TWA) for copper dusts & mists as Cu
∗Ventilation System:∗
A system of local and/or general exhaust is recommended to keep
employee exposures below the Airborne Exposure Limits. Local exhaust
ventilation is generally preferred because it can control the
emissions of the contaminant at its source, preventing dispersion of
it into the general work area. Please refer to the ACGIH document,
/Industrial Ventilation, A Manual of Recommended Practices/, most
recent edition, for details.
∗Personal Respirators (NIOSH Approved):∗
If the exposure limit is exceeded and engineering controls are not
feasible, a half facepiece particulate respirator (NIOSH type N95 or
better filters) may be worn for up to ten times the exposure limit
or the maximum use concentration specified by the appropriate
regulatory agency or respirator supplier, whichever is lowest.. A
full-face piece particulate respirator (NIOSH type N100 filters) may
be worn up to 50 times the exposure limit, or the maximum use
concentration specified by the appropriate regulatory agency, or
respirator supplier, whichever is lowest. If oil particles (e.g.
lubricants, cutting fluids, glycerine, etc.) are present, use a
NIOSH type R or P filter. For emergencies or instances where the
exposure levels are not known, use a full-facepiece
positive-pressure, air-supplied respirator. WARNING: Air-purifying
respirators do not protect workers in oxygen-deficient atmospheres.
∗Skin Protection:∗
Wear protective gloves and clean body-covering clothing.
∗Eye Protection:∗
Use chemical safety goggles and/or full face shield where dusting or
splashing of solutions is possible. Maintain eye wash fountain and
quick-drench facilities in work area.

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9. Physical and Chemical Properties

∗Appearance:∗
Fine, light blue-green crystals.
∗Odor:∗
Slight odor of hydrochloric acid.
∗Solubility:∗
76 parts/100 parts water @ 25C .
∗Specific Gravity:∗
2.54
∗pH:∗
No information found.
∗% Volatiles by volume @ 21C (70F):∗
0
∗Boiling Point:∗
No information found.
∗Melting Point:∗
70 - 200C (158 - 392F)
∗Vapor Density (Air=1):∗
No information found.
∗Vapor Pressure (mm Hg):∗
No information found.
∗Evaporation Rate (BuAc=1):∗
No information found.

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10. Stability and Reactivity

∗Stability:∗
Stable under ordinary conditions of use and storage.
∗Hazardous Decomposition Products:∗
Oxides of the contained metal and halogen, possibly also free, or
ionic halogen.
∗Hazardous Polymerization:∗
Will not occur.
∗Incompatibilities:∗
Potassium, sodium, hydrazine, nitromethane, aluminum, strong
oxidizers, acetylene, and sodium hypobromite. Corrosive to aluminum;
on contact with acids it may release toxic chloride fumes.
∗Conditions to Avoid:∗
Incompatibles.

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11. Toxicological Information


Oral rat LD50: 584 mg/kg; investigated as a mutagen.
(data for anhydrous material)

--------\Cancer Lists\------------------------------------------------------
---NTP Carcinogen---
Ingredient Known Anticipated IARC Category
------------------------------------ ----- ----------- -------------
Copper Chloride (7447-39-4) No No None

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12. Ecological Information

∗Environmental Fate:∗
When released into the soil, this material is not expected to
biodegrade. When released into the soil, this material may leach
into groundwater. When released into water, this material is not
expected to biodegrade. When released into water, this material is
not expected to evaporate significantly. This material is expected
to significantly bioaccumulate. This material has an
experimentally-determined bioconcentration factor (BCF) of greater
than 100. Bioaccumulation data for copper.
∗Environmental Toxicity:∗
This material is expected to be very toxic to aquatic life. The
LC50/96-hour values for fish are less than 1 mg/l. The IC50/72-hour
values for algae are less than 1 mg/l. Toxicity data for copper.

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13. Disposal Considerations

Whatever cannot be saved for recovery or recycling should be managed
in an appropriate and approved waste disposal facility. Processing,
use or contamination of this product may change the waste management
options. State and local disposal regulations may differ from
federal disposal regulations. Dispose of container and unused
contents in accordance with federal, state and local requirements.

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14. Transport Information

∗Domestic (Land, D.O.T.)∗
-----------------------
∗Proper Shipping Name:∗ RQ, COPPER CHLORIDE
∗Hazard Class:∗ 8
∗UN/NA:∗ UN2802
Packing Group: III
∗Information reported for product/size:∗ 350LB

∗International (Water, I.M.O.)∗
-----------------------------
∗Proper Shipping Name:∗ COPPER CHLORIDE
∗Hazard Class:∗ 8
∗UN/NA:∗ UN2802
Packing Group: III
∗Information reported for product/size:∗ 350LB

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16. Other Information

∗NFPA Ratings:∗ Health:∗ 2∗ Flammability: ∗ 0∗ Reactivity: ∗ 0∗
∗Label Hazard Warning:∗
WARNING! HARMFUL IF SWALLOWED. CAUSES IRRITATION TO SKIN, EYES AND
RESPIRATORY TRACT.
∗Label Precautions:∗
Avoid breathing dust.
Keep container closed.
Use only with adequate ventilation.
Wash thoroughly after handling.
Avoid contact with eyes, skin and clothing.
∗Label First Aid:∗
If swallowed, induce vomiting immediately as directed by medical
personnel. Never give anything by mouth to an unconscious person.
Call a physician immediately. If inhaled, remove to fresh air. If
not breathing, give artificial respiration. If breathing is
difficult, give oxygen. Call a physician. In case of contact, wipe
off excess material from skin then immediately flush eyes or skin
with plenty of water for at least 15 minutes. Remove contaminated
clothing and shoes. Wash clothing before reuse. Call a physician.
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