Material Safety Data Sheet

-OSHA Permissible Exposure Limit (PEL):1 mg/m3 (TWA)
-ACGIH Threshold Limit Value (TLV):1 mg/m3 (TWA), 3 mg/m3 (STEL)
Engineering Controls: Provide general or local exhaust ventilation systems to maintain airborne
concentrations as low as possible.
Administrative Controls: Avoid inhalation, ingestion, skin and eye contact. Do not mix with solutions
containing bleach or ammonia.
Respiratory Protection: If this product is used as directed, respiratory protection is not required. Seek
professional advice prior to respirator selection and use. Follow OSHA respirator regulations (29 CFR
1910.134) and, if necessary, wear a MSHA/ NIOSH-approved respirator. If respirators are used, OSHA
requires a written respiratory protection program that includes, at least: medical certification, training, fit
testing, periodic environmental monitoring, maintenance, inspection, cleaning, and convenient, sanitary
storage areas.
Protective Clothing/ Equipment: Wear gloves and aprons while using.
Comments: Never eat, drink, or smoke in work areas. Practice good personal hygiene after using this
material, especially before eating, drinking, smoking, using the toilet, or applying cosmetics.
SECTION 9. PHYSICAL AND CHEMICAL PROPERTIES
Appearance Odor and Physical State: Yellow liquid.
Odor Threshold Range: Odorless.
Vapor Pressure: @20
o
C 17.5mm.
Water Solubility: Completely soluble.
Other Solubilities: Unknown.
pH: 1.2
Specific Gravity: 1.13
Boiling Point: 104
o
C.
Freezing Point: -8
o
C.
Viscosity: 1.00 mNsm
-2
SECTION 10. STABILITY AND REACTIVITY
Stability: Stable at room temperature in closed containers under normal storage and handling conditions.
Polymerization: Hazardous polymerization cannot occur.
Chemical Incompatibilities: General Hydroponics pH Down
TM
can react with, alkali's (bases), aldehydes,
amines, amides, alcohol's, glycol's, azo-compounds, carbamates, cresols, esters, phenols, metals, metal
nitrates, oxides, strong caustics, solutions containing bleach or ammonia.
Conditions to Avoid: Do not mix with ammonia or bleach. Do not put in metal containers. Do not expose
to excessive heat.
Hazardous Decomposition Products: Oxides of phosphorus.
SECTION 11. TOXICOLOGICAL INFORMATION
The toxicity of the combination of the chemicals, in the concentrations used in General Hydroponics pH
MSDS For pH Down Wet 3/12/09 Page 3 of 4