MSDS
Preen Lawn Stepsaver Weed Control Plus Fertilizer 24-0-6
Revision Date: 04/10/2015
Page 2 of 8
Precautionary Statements for disposal - Dispose in accordance with all federal, state and local regulations.
Hazards not otherwise classified (HNOC): None
Unknown acute toxicity <3% of the mixture consists of ingredients of unknown toxicity
Chemical Name
CAS No.
Weight %
Dolomite*
16389-88-1
23.68
2, 4-Dichlorophenoxyacetic acid 2-ethylhexyl ester (2,4-D ester)
1928-43-4
1.108
R-2-(4- chloro-2-methylphenoxy) propionic acid (Mecoprop; MCPP)
16484-77-8
0.167
3,6-Dichloro-o-anisic acid (Dicamba)
1918-00-9
0.071
Dithiopyr
97886-45-8
0.16
Quartz silica (inert)
14808-60-7
0.5-1.5
Nonhazardous fertilizer ingredients
Various
Balance
*Note: Naturally mined minerals, like dolomite typically contain silica (sand) at amounts ranging from 1 to 3%. Fine silica
particulates are considered as a carcinogen via repeated and prolonged inhalation. This product is estimated to contain as
much as 0.5% quartz silica.
Eye Contact Rinse eyes with water. If discomfort or irritation persists contact a physician.
Skin Contact Wash with soap and water. If injury occurs, or if discomfort or irritation persists contact a
physician.
Inhalation If inhaled and discomfort occurs, move to fresh air, and keep person at rest in a position
comfortable for breathing. If difficulty in breathing occurs and/or persists, administer oxygen and
get medical attention. If medical advice is needed, have product container or label on hand.
Ingestion Rinse mouth. Drink Plenty of water. If discomfort occurs, seek medical attention. Do not induce
vomiting of an unconscious person.
Self-protection of the first aider: Use any appropriate personal protective equipment as required to avoid breathing dust, and
to avoid eye and skin contact.
Most important symptoms and effects, both acute and delayed:
Symptoms: Dust irritation with nasal discomfort, or skin irritation possible. May irritate digestive tract. May cause mild eye
irritation. Treat symptomatically.
Indication of any immediate medical attention and special treatment needed: Treat Symptoms.
Suitable extinguishing media
Use extinguishing media suitable to local circumstances and the surrounding environment. Options in this case include water,
CO
2
, ABC Dry Chemical extinguisher, or foam. Avoid stirring up dust with water stream.
Specific hazards arising from the chemical
Thermal decomposition can lead to release of irritating and toxic gases and vapors. In the event of fire, do not breathe fumes.
Explosion data
Sensitivity to mechanical impact: None
Sensitivity to static discharge: None
5. FIRE FIGHTING MEASURES
4. FIRST AID MEASURES
3. COMPOSITION/INFORMATION ON INGREDIENTS