A.H. Hoffman, Inc.
PO Box 290
Lancaster, NY 14086
(T) 716-684-8111
(F) 716-684-3722
Date: June 1, 2004
MSDS Number: SC 17005 (d)
Page 1 of 3
SECTION I - IDENTIFICATION
Garden Gypsum
Product #17005
Chemical Family:
Chemical Name:
Formula:
Chemical Salt
Calcium Sulfate Dihydrate
CAS0
4
2H
2
0
Supplied to the specifications of A.H. Hoffman, Inc., by: Agri Business Supply
Albany, GA 31707
(8/6/90)
SECTION II - HAZARDOUS INGREDIENTS / IDENTITY INFORMATION
*
**
***
Chemical Identity
Gypsum
Quartz**
CAS No. OSHA PEL
Not listed
0.1 mg/m 3 *
Respirable dust.
Present as naturally occurring component of minerals. See section III “Health Hazard Data”.
Total dust
Appearance and Odor:
Fire Hazard Data (Not Combustible):
Extinguishing Media:
Special Fire Fighting Procedures:
10101-41-4
14808-60-7
(1989-90) ACGIH TLV
10 mg/m
A white solid/powder with no odor.
Dry chemical, foam, water fog or spray.
3 ***
0.1 mg/m 3 *
Wear full protective equipment and an approved pressure demand self-contained breathing apparatus.
Reactivity Data: Gypsum is stable and hazardous polymerization, will not occur.
When heated to decomposition oxides of sulfur will be released.
SECTION III - HEALTH HAZARD DATA
Carcinogenicity:
Substance
Quartz (crystalline silica):
NTP
NO
IARC
2A
OSHA
NO
Caution: Contains quartz (crystalline silica).
Th e International Agency for Research on Cancer (IARC) classes this substance in Group 2A, which IARC defines as “probably carcinogenic to humans”. According to IARC there is sufficient evidence for the carcinogenicity of crystalline silica to experimental animals and limited evidence for the carcinogenicity of crystalline silica to humans. It is recommended that a
NIOSH approved respirator, for protection against toxic dusts, be worn whenever working with this product results in airborne dust exposure exceeding the prescribed limits. Quartz (crystalline silica) is not classified as a carcinogen by NTP or OSHA.

A.H. Hoffman, Inc.
PO Box 290
Lancaster, NY 14086
(T) 716-684-8111
(F) 716-684-3722
Date: June 1, 2004
MSDS Number: SC 17005 (d)
Page 2 of 3
Skin Contact:
Eye Contact:
Inhalation:
Signs & Symptoms of Exposure to Airborne
Dust:
Medical Conditions Generally Aggravated by
Exposure:
First Aid Procedures:
Eye:
Skin:
Breathing:
Continued and prolonged contact may result in dry skin.
Direct contact may cause mechanical irritation.
Target organ: respiratory system.
Continued and prolonged exposure to airborne dust concentration in excess of the PEL/TLV may result in cough, dyspnea, wheezing and impaired pulmonary function.
Overexposure would aggravate respiratory systems dysfunctions.
Immediately flush eyes with water for 15 minutes and get medical attention.
Flush and wash skin with soap and water. Get medical attention if irritation persists.
Move the exposed person to fresh air at once. If not breathing initiate pulmonary resuscitation. Get medical attention.
SECTION IV - PRECAUTIONS FOR SAFE HANDLING
Steps to be taken in case material is released or spilled:
Waste Disposal Method:
Precautions to be taken in Handling and
Storing:
Shovel or scoop up back into container for use if possible or disposal.
Not a hazardous waste. Dispose of in accordance with applicable federal, state and local regulation.
Keep dry to preserve usefulness.
SECTION V - CONTROL MEASURES
Work / Hygiene Practices:
Ventilation:
Respiratory Protection:
Eye Protection:
Avoid creating dust.
Provide ventilation to maintain a dust level below the PEL/TLV.
A NIOSH approved respirator for toxic dusts is recommended if the PEL/TLV is exceeded.
Safety glasses or goggles.

A.H. Hoffman, Inc.
PO Box 290
Lancaster, NY 14086
(T) 716-684-8111
Date: June 1, 2004
MSDS Number: SC 17005 (d)
Page 3 of 3
(F) 716-684-3722
Manufacturer’s Notice
The information contained herein is based on the data available to us and is believed to be correct. However, Hoffman makes no warranty, expressed or implied, concerning the accuracy or completeness of this information. Hoffman assumes no responsibility for injury to vendee or third parties from the use of the product described herein.