Product ID:WZ-10
MSDS Date:04/03/1991
FSC:6850
NIIN:01-233-2425
MSDS Number: BRQHF

W R GRACE & CO. DAVISON CHEMICAL DIVISION

10 E BALTIMORE STREET
BALTIMORE, MD 21203
US

Emergency Phone: 301-659-9058/874-2009; J. H. CONVEY

Info Phone: 301-659-9000

Cage: 16210

W R GRACE & CO. DAVISON CHEMICAL DIVISION

2117 BALTIMORE, MD 21202-1630 US

Telephone: 410-659-9000

Cage: 16210

SODIUM OXIDE

CAS: 1313-59-3

CALCIUM OXIDE

CAS: 1305-78-8

RTECS: EW3100000

OSHA PEL 5 MG/M3

ACGIH TLV: 2 MG/M3; 9293

POTASSIUM OXIDE

CAS: 12136-45-7

RTECS: TT3790000

OSHA PEL 15 MG/M3 TOTAL DUST

ACGIH TLV: 10 MG/M3 TOTAL DUST

SILICA GEL

CAS: 112945-52-5

RTECS: VV7310000

OSHA PEL 6 MG/M3.

ACGIH TLV: 10 MG/M3.

ALPHA-ALUMINA (ALUMINUM OXIDE) (EPA LISTS ONLY FIBROUS

CAS: 1344-28-1

RTECS: BD1200000

OSHA PEL 15 MG/M3 TDUST

ACGIH TLV: 10 MG/M3 TDUST; 9293

KAOLIN/CLAY

CAS: 1332-58-7

RTECS: GF1670500

OSHA PEL 15 MG/M3 TDUST

ACGIH TLV: 2 MG/M3 TDUST; 9293

SILICA, CRYSTALLINE - FUSED/QUARTZ

CAS: 60676-86-0

RTECS: VV7328000

OSHA PEL SEE TABLE Z3

ACGIH TLV: 0.1 MG/M3 RDUST;9293

WATER

CAS: 7732-18-5

RTECS: ZC0110000

LD50 LC50 Mixture:LD50 (ORAL RAT) IS UNKNOWN.
Routes of Entry: Inhalation:YES Skin:NO Ingestion:NO
Reports of Carcinogenicity:NTP:YES IARC:YES OSHA:NO
Health Hazards Acute and Chronic:ACUTE- INHALATION OF DUST CAN CAUSE
RESPIRATORY TRACT IRRITATION. THE DRYING ACTION OF THIS MATERIAL
CAN CAUSE IRRITATION OF MUCOUS MEMBRANES OF THE NOSE AND THROAT AND
IRRITATION OF THE EYES AND SKIN . CHRONIC- QUARTZ CAN CAUSE CANCER,
SILICOSIS OR OTHER FIBROTIC LUNG DISEASE WITH PROLONGED EXPOSURE.
Explanation of Carcinogenicity:CONTAINS CRYSTALLINE SILICA (QUARTZ).
Effects of Overexposure:EYES, SKIN, RESPIRATORY TRACT IRRITATION
Medical Cond Aggravated by Exposure:NOT KNOWN

First Aid:GET MEDICAL ATTENTION IF SYMPTOMS PERSIST. SKIN:REMOVE
CONTAMINATED CLOTHING. WASH SKIN WITH SOAP & WATER. EYE:FLUSH WITH
WATER FOR 15 MINUTES, HOLDING EYELIDS OPEN. INHALED:REMOVE TO FRESH
AIR. ORAL: MATERIAL WILL PASS THROUGH BODY NORMALLY.

Flash Point:NON-FLAMMABLE
Extinguishing Media:WATER SPRAY, CARBON DIOXIDE, FOAM OR DRY CHEMICAL
FOR SURROUNDING FIRE. USE WATER SPRAY TO COOL FIRE EXPOSED
CONTAINERS.
Fire Fighting Procedures:WEAR PROTECTIVE CLOTHING AND NIOSH-APPROVED
SELF-CONTAINED BREATHING APPARATUS.
Unusual Fire/Explosion Hazard:NON-FLAMMABLE

Spill Release Procedures:VACUUM OR SWEEP UP SPILLAGE. AVOID CREATING
DUST. PLACE SPILLAGE IN APPROPRIATE CONTAINER FOR WASTE DISPOSAL.
VENTILATE AREA AND WASH SPILL SITE.
Neutralizing Agent:NOT RELEVANT

Handling and Storage Precautions:KEEP CONTAINERS TIGHTLY SEALED TO
PROTECT PRODUCT QUALITY.
Other Precautions:AVOID CONTACT WITH EYES AND SKIN. AVOID BREATHING
DUST. WHEN TRANSFERRING BEADED MOLECULAR SIEVES WITH HIGH PRESSURE
AIR, WEAR GOGGLES AND PROTECTIVE CLOTHING. MAKE SURE THAT THE
TRANSFER SYSTEM AND R ECEIVING VESSELS ARE PROPERLY GROUNDED.

Respiratory Protection:NONE NORMALLY REQUIRED. IF DUSTY CONDITIONS
PREVEIL, A NIOSH APPROVED AIR SUPPLIED RESPIRATOR OR DUST
RESPIRATOR IS ADVISED.
Ventilation:ADEQUATE
Protective Gloves:RUBBER OR PLASTIC RECOMMENDED
Eye Protection:DUST-RESISTANT SAFETY GOGGLES
Other Protective Equipment:EYE WASH STATION, EMERGENCY SHOWER,
APPROPRIATE LABORATORY COAT TO COVER EXPOSED SKIN
Work Hygienic Practices:DO NOT PERMIT EATING, DRINKING OR SMOKING NEAR
THIS MATERIAL. WASH THOROUGHLY AFTER HANDLING AND BEFORE
EATING/DRINKING.
Supplemental Safety and Health
FORMULA CHANGED. FOR PREVIOUS FORMULATION, SEE PNI A UNDER THE SAME
NSN. WHEN POURING INTO A CONTAINER OF FLAMMABLE LIQUID, GROUND BOTH
CONTAINERS ELECTRICALLY. WILL RELEASE HEAT WHEN ADSORBING WATER.
THE SIEVES CAN BECOME HOT ENOUGH TO CAUSE THERMAL BURNS OF THE
SKIN.

HCC:T6
Melt/Freeze Pt:M.P/F.P Text:NOT KNOWN
Spec Gravity:2.1
Evaporation Rate & Reference:NOT RELEVANT
Solubility in Water:INSOLUBLE
Appearance and Odor:WHITE, GRAY OR TAN BEADS - ODORLESS

Stability Indicator/Materials to Avoid:YES
NONE KNOWN.
Stability Condition to Avoid:MOISTURE
Hazardous Decomposition Products:NOT KNOWN

Waste Disposal Methods:DISPOSE OF IN ACCORDANCE WITH LOCAL, STATE AND
FEDERAL REGULATIONS. RECOMMENDED METHOD IS BY LANDFILL. COVER TO
AVOID BLOWING OF DUST. USED MOLECULAR SIEVES MAY CONTAIN FLAMMABLE
AND/OR TOXIC CHEMICAL S. USE APPROVED DISPOSAL METHODS FOR TOXIC
WASTE.

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disclaims all liability for its use. Any person utilizing this
document should seek competent professional advice to verify and
assume responsibility for the suitability of this information to their
particular situation.