Material Safety Data Sheet
Science Stuff, Inc.
1104 Newport Ave
Austin, TX 78753
Phone (512) 837-6020
Chemtrec 800-424-9300
24 Hour Emergency Assistance
Section 1 Identification
Product Number:C1682 
Health:
Flammability
Reactivity
Hazard Rating:
LeastSlightModerateHighExtreme
01234
NA = Not Applicable NE = Not Established
Product Name:Digestion Reagent APHA for Nitrogen 
Trade/Chemical Synonyms 
Formula:N/A
RTECS:None 
C.A.SSee Below
Section 2 Component Mixture
Sara 313ComponentCAS Number%DimExposure Limits:
Water, Deionized ASTM Type II CAS# 7732-18-5 Balance V/V None Established 
Cupric Sulfate  CAS# 7758-99-8 1.142% W/V OSHA TWA 1 mg(Cu)/mƒ 
Potassium Sulfate  CAS# 7778-80-5 13.4% W/V None Established 
Sulfuric Acid  CAS# 7664-93-9 13.4% V/V OSHA TWA 1 mg/mƒ, ACGIH STEL 3 ppm 
Section 3 Hazard Identification (Also see section 11)
Causes severe irritation and burns. Harmful if swallowed. Avoid breathing vapor or dust. Use with adequate ventilation. Avoid contact with eyes, skin, and clothes. Wash thoroughly after handling. Keep container closed. 
Section 4 First Aid Measures
Causes severe irritation and burns. Harmful if swallowed. Avoid breathing vapor or dust. Use with adequate ventilation. Avoid contact with eyes, skin, and clothes. Wash thoroughly after handling. Keep container closed.

FIRST AID: CALL A PHYSICIAN. SKIN: In case of contact, immediately flush skin with water for at least 15 minutes while removing contaminated clothing and shoes. Thoroughly clean clothing and shoes before reuse.

EYES: Wash eyes with plenty of water for at least 15 minutes, lifting lids occasionally. Seek Medical Aid. INHALATION: Remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen

INGESTION: Give several glasses of milk or water. Vomiting may occur spontaneously, but DO NOT INDUCE! Never give anything by mouth to an unconscious person.
Section 5 Fire Fighting Measures
Fire Extinguisher Type:Any means suitable for extinguishing surrounding fire
Fire/Explosion Hazards:May generate heat if exposed to water
Fire Fighting Procedure:Wear self-contained breathing apparatus and protective clothing to prevent contact with skin and clothing.
Section 6 Accidental Release Measures
Absorb spill with inert material, then place in a chemical waste container. Dispose of in a manner consistent with federal, local law.
Section 7 Handling and Storage
Store in a cool dry place. Do not get in eyes, on skin, on clothing. Wash thoroughly after handling 
Section 8 Exposure Controls & Personal Protection
Respiratory Protection:None required
Ventilation: Mechanical: Hand Protection:Gloves to prevent skin exposure as latex or vinyl
Local Exhaust: Eye Protection:Splash Goggles
Other Protective Equipment: Wear appropriate clothing to prevent skin exposure
Section 9 Physical and Chemical Properties
Melting Point:Information not availableSpecific Gravitynot available
Boiling Point:Information not available Percent Volatile by Volume:~70%
Vapor Pressure:Information not available Evaporation Rate:not available
Vapor Density: Information not available Evaporation Standard:
Solubility in Water: Soluble Auto ignition Temperature: Not applicable
Appearance and Odor: Clear blue odorless liquid Lower Flamm. Limit in Air: Not applicable
Flash Point: not flammable Upper Flamm. Limit in Air: Not applicable
Section 10 Stability and Reactivity Information
Stability: StableConditions to Avoid: strong bases, contact with metals
Materials to Avoid:
Strong bases, aluminum, magnesium
Hazardous Decomposition Products:
Toxic fumes of sulfur, oxides of nitrogen
Hazardous Polymerization:not expected to occur
Condition to Avoid:None known
Section 11 Additional Information
DANGER!! This material is extremely corrosive to the skin and,eyes. Effects of over exposure:SERVERE irritation of the eyes,skin and possible vision impairment. Severe pain of the skin,coughing and possible charring of skin.vomiting blood ,shock severe tissue damage and DEATH may occur. Acute:EXTREMELY!! CORROSIVE! Causes severe skin and eye burns mist can be extermly irritating to the upper respiratory tract. Chronic: may cause severe dental erosion swallowing this material may cause DEATH! Target organs:eyes,skin,mouth,upper respiratory tract and Gi tract. Conditions aggravated/target organs. Persons with pre-existing eye,skin or respiratory conditions may be more susceptible. 
DOT Classification: Corrosive Liquids, n.o.s. (Sulfuric Acid), 8, UN 1760, PG II
DOT regulations may change from time to time. Please consult the most recent version of the relevant regulations.
Revision No:0Date Entered: 9/1/2006 Approved by: WPF

The information contained herein is believed to be accurate and is offered in good faith for the user's consideration and investigation. No warranty is expressed or implied regarding the completeness or accuracy of this information, whether originating from Science Stuff, Inc. or from an alternate source. Users of this material should satisfy themselves by independent investigation of current scientific and medical information that this material may be safely handled.