MATERIAL SAFETY DATA SHEET
GENERAL 
MANUFACTURER'S NAME 
Sta-Rite Industries, Inc.
EMERGENCY TELEPHONE NUMBERS 
1-800-424-9300 
ADDRESS 38655 Sky Canyon Drive 
Murrieta, CA 92563 
PRODUCT NAME/IDENTITY HARDNESS SOLUTION #2 DATE OF LAST REVISION 
01/31/00 
INGREDIENTS 
HAZARDOUS INGREDIENTS CAS # % TLV OSHA PEL 
EDTA, Disodium Salt 6381-92-6 4 NE NE 
PHYSICAL DATA 
BOILING POINT (
C) 100° DENSITY (gm cc) ~1.0 
VAPOR PRESSURE (mmHg) N/A % VOLATILE BY VOLUME (%) 96% 
REACTION WITH WATER None EVAPORATION RATE (H2O = 
1) 
1 
SOLUBILITY IN WATER 100% MELTING POINT (
C) 0º 
APPEARANCE AND ODOR Clear Liquid - Odorless pH N/A 
OTHER COMMENTS VAPOR DENSITY (AIR=1) 
FIRE HAZARDSFLASH POINT (method 
used) 
N/A 
AUTOIGNITION TEMP 
(
C) 
N/A 
FLAMMABLE LIMITS IN AIR LEL N/A 
UEL N/A 
EXTINGUISHING MEDIA N/A 
SPECIAL FIRE FIGHTING PROCEDURES N/A 
UNUSUAL FIRE AND EXPLOSION HAZARDS NoneHEALTH HAZARDS 
TOXICITY DATA Oral rat LD50 for EDTA, Disodium salt = 2,000 mg/kg. HMIS HAZARD RATING 
Health: 1 
Flammability: 0 
Reactivity: 0 
ROUTE (S) OF ENTRY: INHALATION? SKIN? INGESTION? X 
EFFECTS OF OVEREXPOSURE (acute and chronic) 
INHALATION: None identified. 
DERMAL/EYE CONTACT: May cause skin irritation from prolonged contact. May cause eye irritat 
OTHER (Specify): 
MEDICAL CONDITIONS GENERALLY AGGRAVATED BY EXPOSURE Skin and eye disorders, diseases of t 
respiratory system. 
CARCINOGENICITY NTP? No IARC MONOGRAPHS? No OSHA REGU 
No 

FIRST AID 
EMERGENCY AND FIRST AID PROCEDURES: 
INGESTION: Induce vomiting. Seek medical assistance if victim becomes symptomatic. 
INHALATION: Remove to fresh air. 
SKIN CONTACT: Flush affected area with water. 
EYE CONTACT: Flush with water for 15 minutes – If irritation persists, seek medical attentioREACTIVITY 
STABILITY STABLE X CONDITIONS CONTRIBUTING TO INSTABILITY NoneUNSTABLE 
INCOMPATIBILITY (materials to avoid) None 
HAZARDOUS DECOMPOSITION PRODUCTS - THERMAL AND OTHER (list) None 
HAZARDOUS 
POLYMERIZATIONMAY OCCUR CONDITIONS TO AVOID None 
WILL NOT OCCSPILLS/LEAKS 
STEPS TO BE TAKEN IN CASE MATERIAL IS RELEASED OR SPILLED 
Flush with water. 
WASTE DISPOSAL METHOD (Consult federal, state, or local authorities for proper disposal 
procedures.) 
Flush to drain. 
EXPOSURE CONTROL 
RESPIRATORY PROTECTION (specify type). USE ONLY NIOSH-APPROVED EQUIPMENT. 
None required.
VENTILATION (always 
maintain exposure 
below permissible 
limits) 
LOCAL EXHAUST Not normall 
required 
SPECIAL None 
MECHANICAL (general) Usu 
adequate 
OTHER None 
PROTECTIVE GLOVES Required – Any non-cloth type EYE PROTECTION Safety Glasses 
OTHER PROTECTIVE EQUIPMENT/WORK PRACTICES 
NoneMISCELLANEOUS 
PRECAUTIONS TO BE TAKEN IN HANDLING AND STORING Store in dry area. 
TRANSPORTATION REQUIREMENTS 
DOT CLASS: N/A (non-hazardous) 
UN NUMBER: N/A 
IMCO CLASS: N/A 
OTHER: N/A 

The above information is accurate to the best of our knowledge. However, since data, safety standards, and governm 
regulations are subject to change and the conditions of handling and use, or misuse are beyond 
control, WE MAKE NO WARRANTY, EITHER EXPRESSED OR IMPLIED, WITH RESPECT TO THE COMPLETENESS 
CONTINUING ACCURACY OF THE INFORMATION CONTAINED HEREIN AND DISCLAIMS ALL LIABILITY FOR RELIA 
THEREON: User should satisfy himself that he has all current data relevant to his particular use. 
ND = NO DATA FOUND NA = NOT APPLICABLE NE = NOT ESTABLISHED