MSDS

MATERIAL SAFETY
DATA SHEET
HTH PH MINUS
REVISION DATE : 08/05/2013 Page 2 of 11
Hazardous Materials Identification System / National Fire Protection Association Classifications
Hazard Ratings : Health Flammability Physical / Instability PPI / Special
hazard.
HMIS 3 0 0
NFPA 3 0 0
Immediate (Acute) Health Effects
Inhalation Toxicity: Inhalation of dust may cause irritation and/or burns to the mucous
membranes of the respiratory tract.
Skin Toxicity: DRY MATERIAL CAUSES MODERATE SKIN IRRITATION. WET
MATERIAL CAUSES SKIN BURNS. Dermal exposure to dry material
causes moderate skin irritation characterized by redness and swelling.
Dermal exposure to wet material can cause severe irritation and/or
burns characterized by redness, swelling and scab formation. Prolonged
skin exposure may cause permanent damage.
Eye Toxicity: Severe irritation and/or burns can occur following exposure. Direct
contact may cause impairment of vision and corneal damage. Rinsing of
the eye should take place immediately.
Ingestion Toxicity: Irritation and/or burns can occur to the entire gastrointestinal tract,
including the stomach and intestines, characterized by nausea, vomiting,
diarrhea, abdominal pain, bleeding, and/or tissue ulceration. Ingestion
may cause severe damage to the gastrointestinal tract with the potential
to cause perforation.
Acute Target Organ Toxicity:
This product is corrosive to all tissues contacted and upon inhalation,
may cause irritation to mucous membranes and respiratory tract., The
dry material is irritating to the skin. However when wet, it will produce
burns to the skin.
Prolonged (Chronic) Health Effects
Carcinogenicity: This product is not known or reported to be carcinogenic by any
reference source including IARC, OSHA, NTP or EPA.
Reproductive and
Developmental Toxicity:
Not known or reported to cause reproductive or developmental toxicity.
Inhalation: There are no known or reported effects from chronic exposure except for
effects similar to those experienced from acute exposure.
Skin Contact: Effects similar to those from acute exposure. In addition, chronic
exposure to wet material may cause effects secondary to tissue
destruction.
Skin Absorption: There are no known or reported effects from chronic exposure.
Ingestion: There are no known or reported effects from chronic ingestion except for
effects similar to those experienced from single exposure. The acute
corrosivity of this product, makes chronic ingestion of significant
amounts unlikely.