EMS CATALOG NO: 21100 
EMS PRODUCT: Silver Proteinate
DATE:   12/12/94
PAGE NUMBER:  One of 4


MATERIAL SAFETY DATA SHEET

The information contained herein is based on data considered
accurate. However, no warranty is expressed or implied
regarding the accuracy of these data or the results to be obtained
from the use thereof.

Electron Microscopy Sciences assumes no responsibility for
personal injury or property damage to vendees, users or
third parties caused by the material. Such vendees or users
assume all risks associated with the use of the material.


ELECTRON MICROSCOPY SCIENCES
321 MORRIS ROAD
P.O. BOX 251
FORT WASHINGTON, PA 19034 24 HOUR EMERGENCY PHONE NUMBER
(215) 646-1566 CHEMTREC: (800) 424-9300
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FOR PRODUCT AND SALES INFORMATION
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CONTACT ELECTRON MICROSCOPY SCIENCES OFFICE ABOVE.

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PRODUCT IDENTIFICATION
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PRODUCT NAME: Silver Proteinate

CAS NUMBER: 9008-42-8

SYNONYMS: Argentum Crede; Collargol (9CI); Colloidal Silver













* * * CATALOG NO: 21100 * * * (Page 2 of 4)
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HAZARDS IDENTIFICATION
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LABEL PRECAUTIONARY STATEMENTS:

Toxic.
Toxic by inhalation, in contact with skin and if swallowed.
Irritating to eyes, respiratory system and skin.
In case of contact with eyes, rinse immediately with plenty of water
and seek medical advice.
In case of accident or if you feel unwell, seek medical advice immediately
(show the label where possible).
Wear suitable protective clothing, gloves and eye/face protection.
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FIRST AID MEASURES
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In case of contact, immediately flush eyes or skin with copious amounts
of water for at least 15 minutes while removing contaminated clothing
and shoes. 

If inhaled, remove to fresh air. If not breathing give artificial
respiration. If breathing is difficult, give oxygen.

If swallowed, wash out mouth with water provided person is conscious.

Call a physician. Wash contaminated clothing before reuse.
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FIRE FIGHTING MEASURES
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EXTINGUISHING MEDIA: Water spray, Carbon dioxide, dry chemical 
powder or appropriate foam.

SPECIAL FIRE FIGHTING PROCEDURES:

Wear self contained breathing apparatus and protective clothing
to prevent contact with skin and eyes.

UNUSUAL FIRE AND EXPLOSIONS HAZARDS:

Emits toxic fumes under fire conditions.







* * * CATALOG NO: 21100 * * * (Page 3 of 4)
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ACCIDENTAL RELEASE/DISPOSAL MEASURES
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STEPS TO BE TAKEN IF ACCIDENTALLY RELEASED:

Evacuate area. Wear self contained breathing apparatus, rubber
boots and heavy rubber gloves. Sweep up, place in a bag and hold
for waste disposal. Avoid raising dust. Ventilate area and wash
spill site after material pickup is complete.

WASTE DISPOSAL:

Dissolve or mix the material with a combustible solvent and burn
in a chemical incinerator equipped with an afterburner and scrubber.
Observe all Federal, State and Local environmental regulations.
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EXPOSURE CONTROLS/PERSONAL PROTECTION
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Wear appropriate NIOSH/MSHA-approved respirator, chemical-
resistant gloves, safety goggles, other protective clothing.
Safety shower and eye bath.
Use only in a chemical fume hood.
Do not breathe dust.
Avoid contact with eyes, skin and clothing.
Avoid prolonged or repeated exposure.
Wash thoroughly after handling.
Toxic.
Irritant.
Keep tightly closed.
Hygroscopic.
Light sensitive.
Store in a cool dry place.
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PHYSICAL AND CHEMICAL PROPERTIES
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APPEARANCE AND ODOR: Pale yellow-orange to brown-black
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REACTIVITY DATA
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INCOMPATIBILITIES: 

Strong oxidizing agents. Acids. May decompose on exposure to 
light.

* * * CATALOG NO: 21100 * * * (Page 4 of 4)


HAZARDOUS COMBUSTION OR DECOMPOSITION PRODUCTS:

Toxic fumes of carbon monoxide, carbon dioxide.
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TOXICOLOGICAL INFORMATION
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ACUTE EFFECTS:

Harmful if swallowed, inhaled, or absorbed through skin.
Causes eye and skin irritation.

Material is irritating to mucous membranes and upper respiratory
tract.

To the best of our knowledge, the chemical, physical, and toxicological
properties have not been thoroughly investigated.

RTECS NO: VW3675000 SILVER, COLLOIDAL

TOXICITY DATA: ORL-MUS LD50: 100 mg/kg JPPMAB 2,20,50

TARGET ORGAN DATA:

Liver (other changes)
Blood (changes in spleen)

Only selected Registry of Toxic Effects of Chemical Substances 
(RTECS) data is presented here. See actual entry in RTECS for 
complete information.
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REGULATORY INFORMATION
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REVIEWS, STANDARDS, AND REGULATIONS:

ACGIH TLV-TWA 0.01 mg (Ag)/m3 85INA8 5,529,86
MSHA STANDARD-AIR: TWA 0.01 mg(Ag)/m3 DTLVS* 3,231,71

This product is subject to SARA Section 313 Reporting Requirements.