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MATERIAL SAFETY DATA SHEET
Aerogel
MSDS DATE: 03/12/07
PAGE 1 OF 5
SECTION 1: PRODUCT AND COMPANY IDENTIFICATION
PRODUCT NAME:
Aerogel
PRODUCT CODES:
S100061, S100058, S100059
DISTRIBUTOR:
United Nuclear Scientific Supplies, LLC.
ADDRESS:
P.O. Box 851
Sandia Park, NM. 87047
EMERGENCY PHONE
: 505-286-2831 US
OTHER CALLS:
505-286-2831 9 AM to 5 PM MST
CHEMICAL NAME:
Silica gel, trimethylsilylated.
CHEMICAL FAMILY:
Silica Aerogel Material
CHEMICAL FORMULA:
Proprietary
PRODUCT USE:
High Performance Insulating Material
SECTION 2: COMPOSITION/INFORMATION ON INGREDIENTS
INGREDIENT:
Exposure Limits
Component
CAS Number
OSHA
ACGIH
Other
Silica gel,
trimethylsilylated
126877-03-0
20 mppcf TWA
a
;
80 mg/m
3
TWA
a
%SiO2
10 mg/m
3
TWA
a
Inhalable
fraction
6 mg/m
3
TWA
a
3000 mg/m
3
IDLH
a
(NIOSH)
Oxidized
polyacrylonitrile fiber
N/A
None established
Fibrous Glass
(textile grade)
N/A
5 mg/m
3
TWA
b
Respirable dust
5 mg/m
3
TWA
b
Respirable dust
a
No exposure limits established for this specific material; values reported are for Silica 7631-86-9
b
Exposure limits referenced are not for fibrous glass (textile grade), but for fibrous glass dust, which can be
evolved, dependent on method of handling.
SECTION 3: HAZARDS IDENTIFICATION
EMERGENCY OVERVIEW:
Inhalation of excessive amounts of dust from the product may cause irritation to the respiratory tract. Remove
individual to fresh air. If applied in a manner inconsistent with recommended practice and temperature range,
product may evolve acrid odor and fumes containing hydrogen cyanide.
PRIMARY ROUTES OF ENTRY (Exposure) :
Inhalation (breathing dust), skin, and eye contact.

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MATERIAL SAFETY DATA SHEET
Aerogel
MSDS DATE: 03/12/07
PAGE 2 OF 5
POTENTIAL HEALTH EFFECTS
EYES:
Exposure to activated silica gels can produce a drying sensation and irritation
of the eyes.
SKIN:
Exposure to activated silica gels can produce a drying sensation and irritation
of the skin and mucous membranes.
INGESTION:
This material is not intended to be ingested (eaten). If ingested in large quantity, the material may
produce mechanical irritation and blockage
INHALATION:
Excessive, short-term exposure to airborne dusts may cause irritation of the upper respiratory
tract.
ACUTE HEALTH HAZARDS:
Dust from this product is a physical irritant, and may cause temporary irritation or
scratchiness of the throat and / or itching and redness of the eyes and skin.
CHRONIC HEALTH HAZARDS
: Some studies of long term amorphous silica dust exposures indicate a potential for
decreased lung function. In surveyed studies, this effect is characterized as compounded by smoking.
Additionally, surveyed studies characterize the decreased lung function effect as reversible on discontinuation of
exposure.
MEDICAL CONDITIONS GENERALLY AGGRAVATED BY EXPOSURE:
Excessive inhalation of dust may aggravate pre-
existing chronic lung conditions including, but not limited to, bronchitis, emphysema, and asthma.
CARCINOGENICITY
ACGIH:
Not Listed
NTP:
Not Listed
IARC:
3
SECTION 3 NOTES:
This product is composed of amorphous silicon dioxide, often referred to as silica gel or
amorphous precipitated silica. Amorphous silica should not to be confused with crystalline silica.
Epidemiologal studies indicate low potential for adverse health effects. Silica gel is considered by
NIOSH/OSHA to be a nuisance dust. There is inadequate evidence in humans for the carcinogenicity
of amorphous silica. There is inadequate evidence in experimental animals for the carcinogenicity of
amorphous silica. Amorphous silica is not classifiable as to its carcinogenicity to humans.
SECTION 4: FIRST AID MEASURES
EYES:
Immediately wash with large amounts of water for at least 15 minutes, occasionally lifting lids. If
irritation occurs and persists, get medical treatment.
SKIN:
Wash with soap and water immediately.
INGESTION:
Material will pass through the body normally.
INHALATION:
Remove to fresh air.
SECTION 5: FIRE-FIGHTING MEASURES
FLAMMABLE LIMITS IN AIR, UPPER:
N/A
(% BY VOLUME)
LOWER:
N/A
FLASH POINT:
N/A

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MATERIAL SAFETY DATA SHEET
Aerogel
MSDS DATE: 03/12/07
PAGE 3 OF 5
NFPA HAZARD CLASSIFICATION
HEALTH:
1
FLAMMABILITY:
0
REACTIVITY:
0
OTHER:
N/A
HMIS HAZARD CLASSIFICATION
HEALTH:
1
FLAMMABILITY:
1
REACTIVITY:
0
PROTECTION:
Please refer to Section 8; dependent on task, handling methods, workplace controls, and other
factors.
EXTINGUISHING MEDIA:
Use media suitable for surrounding fire and that are appropriate to the surrounding
environment; normal fog nozzle water application and/or exclusion of air is suitable for extinguishing this product in
blanket form.
SPECIAL FIRE FIGHTING PROCEDURES:
Wear NIOSH/MSHA Approved SCBA and full protective equipment.
UNUSUAL FIRE AND EXPLOSION HAZARDS:
Rapid exposure of the product to excessive heat or flame can generate
local concentrations of combustible vapors. Product is a super-insulation material. Rolls of material can retain heat
within internal layers causing re-ignition in the presence of oxygen if heat is not removed.
In regard to dust explosion potential, surface treated silica gel materials are not a readily combustible or explosive
substance. If dust clouds of particulates are generated from aggressive handling of the product, caution should be
taken to avoid static discharges; ground all metal parts of cutting/processing equipment.
HAZARDOUS DECOMPOSITION PRODUCTS:
If involved in combustion events, or on heating in a manner inconsistent
with recommended practice and temperature range, product can evolve different proportions of the following,
nitrogen-containing products; NH3 (ammonia), HCN (hydrogen cyanide), N2, and monomeric acrylonitrile.
Additionally, carbon monoxide and other products of combustion can be evolved.
SECTION 6: ACCIDENTAL RELEASE MEASURES
ACCIDENTAL RELEASE MEASURES:
Not known to have any adverse affects on the aquatic environment. Material is
insoluble and nontoxic. Contain and collect (preferably vacuum up material, using vacuum equipped with HEPA
filter) released material for disposal.
SECTION 7: HANDLING AND STORAGE
HANDLING AND STORAGE:
Avoid conditions that generate large quantities of dust. Refer to work hygienic practices
described in Section 8.
OTHER PRECAUTIONS:
If activities generate significant quantities of dust, ground metal containers and tools used to
handle the product.
SECTION 8: EXPOSURE CONTROLS/PERSONAL PROTECTION
VENTILATION :
Local exhaust is recommended to control dust
RESPIRATORY PROTECTION:
If conditions are present involving dust evolution above the occupational exposure limit,
wear properly fitted NIOSH/MSHA approved respirator with P100 cartridge or canister. A respiratory protection
program that meets OSHA 29 CFR Part 1910.134 and ANSI Z88.2 requirements whenever workplace conditions
warrant use of a respirator.
EYE PROTECTION:
Safety glasses, or chemical goggles as needed to provide greater protection from dust.
SKIN PROTECTION:
Long sleeves. Nitrile, latex, leather or other impermeable gloves to control dermal exposure.
OTHER PROTECTIVE CLOTHING OR EQUIPMENT
: If dusty conditions prevail, consider use of disposable coverall to
promote cleanliness and minimize track-out of dust from work area.

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MATERIAL SAFETY DATA SHEET
Aerogel
MSDS DATE: 03/12/07
PAGE 4 OF 5
WORK HYGIENIC PRACTICES:
Keep materials packaged until just prior to use. Die cut in preference to rotary or other
cutting methods. Dry vacuum with proper filtration preferred to sweeping. Wash thoroughly after using the
product. Wash clothing if dust conditions present. Wash hands before eating or drinking.
EXPOSURE GUIDELINES:
Refer to Section 2.
SECTION 9: PHYSICAL AND CHEMICAL PROPERTIES
APPEARANCE:
Dark grey blanket
ODOR:
None
PHYSICAL STATE:
Solid. Opacified silica aerogel blanket
pH AS SUPPLIED:
Not Applicable
SOLUBILITY IN WATER:
Insoluble
SECTION 10: STABILITY AND REACTIVITY
STABLE
UNSTABLE
STABILITY:
XX
CONDITIONS TO AVOID (STABILITY):
Prolonged exposure to temperatures above the recommended use temperature.
Avoid contact with fluorinating agents. Avoid conditions that produce large quantities of dust dispersed in air.
INCOMPATIBILITY (MATERIAL TO AVOID):
Reacts with hydrogen fluoride and hydrofluoric acid.
HAZARDOUS DECOMPOSITION OR BY-PRODUCTS:
Reference Section 5. Additionally, amorphous silicon dioxide can
crystallize into hazardous respirable materials (i.e. cristobalite) after prolonged exposure to temperatures above
1200 ºC.
HAZARDOUS POLYMERIZATION:
None
SECTION 11: TOXICOLOGICAL INFORMATION
TOXICOLOGICAL INFORMATION:
Some studies of long term amorphous silica dust exposures indicate a potential for decreased lung function. In
surveyed studies, this effect is characterized as compounded by smoking. Additionally, surveyed studies
characterize the decreased lung function effect as reversible on discontinuation of exposure.
SECTION 12: ECOLOGICAL INFORMATION
ECOLOGICAL INFORMATION:
No data available for this product.
SECTION 13: DISPOSAL CONSIDERATIONS
WASTE DISPOSAL METHOD:
Dispose in an approved landfill in accordance with federal, state / provincial, and local
regulation. Cover promptly to avoid blowing of dust.
RCRA HAZARD CLASS:
This product is not regulated as a hazardous waste under RCRA regulations.

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MATERIAL SAFETY DATA SHEET
Aerogel
MSDS DATE: 03/12/07
PAGE 5 OF 5
SECTION 14: TRANSPORT INFORMATION
U.S. DEPARTMENT OF TRANSPORTATION
PROPER SHIPPING NAME:
Not regulated by this mode of transportation.
WATER TRANSPORTATION
PROPER SHIPPING NAME:
Not regulated by this mode of transportation.
AIR TRANSPORTATION
PROPER SHIPPING NAME:
Not regulated by this mode of transportation.
SECTION 15: REGULATORY INFORMATION
U.S. FEDERAL REGULATIONS
CERCLA (COMPREHENSIVE RESPONSE COMPENSATION, AND LIABILITY ACT):
Product is not classified as hazardous
or reportable under this requirement.
SARA TITLE III (SUPERFUND AMENDMENTS AND REAUTHORIZATION ACT):
Product is not classified as hazardous or
reportable under this requirement.
311/312 HAZARD CATEGORIES:
Product is not classified as hazardous or reportable under this requirement.
313 REPORTABLE INGREDIENTS:
Product is not classified as hazardous or reportable under this requirement.
STATE REGULATIONS:
Amorphous silica, CAS RN 7631-86-9, appears on the following state hazardous substance
lists : CA, IN, KY, MA, MN, NC, NJ, OR, PA.
Check individual state requirements.
INTERNATIONAL REGULATIONS
: Amorphous silica, CAS RN 7631-86-9, is listed on the WHMIS Ingredient Diclosure
List at a concentration threshold of 1 %.
SECTION 16: OTHER INFORMATION
DISCLAIMER:
The information herein is presented in good faith and believed to be accurate as the effective data
given. However, no warranty, expressed or implied, is given. It is the buyer’s responsibility to ensure that its
activities comply with Federal, State or Provincial, and local laws.