HACH CO. -- NESSLER REAGENT  -- 6810-01-011-7192
<pre>=====================  Product Identification  =====================

Product ID:NESSLER REAGENT
MSDS Date:06/12/1991
FSC:6810
NIIN:01-011-7192
=== Responsible Party ===
Company Name:HACH CO.
Box:907
City:AMES
State:IA
ZIP:50010
Country:US
Info Phone Num:800-227-4224/303-669-3050
Emergency Phone Num:800-227-4224 OR 303-623-5716 SUPP.
CAGE:4T252
=== Contractor Identification ===
Company Name:ADVANCED INDUSTRIES INC
Address:415 NORTHCUTT STREET
Box:5666
City:LONGVIEW
State:TX
ZIP:75608
Country:US
Phone:214-236-4101
CAGE:0GA21
Company Name:HACH COMPANY
Address:100 DAYTON RD.
Box:907
City:AMES
State:IA
ZIP:50010
Country:US
Phone:800-227-4224
CAGE:4T252

=============  Composition/Information on Ingredients  =============

Ingred Name:MERCURIC IODIDE
CAS:7774-29-0
RTECS #:OW5250000
Fraction by Wt: < 15%
Other REC Limits:NONE SPECIFIED
OSHA PEL:0.1 MG/M3 AS HG, MFR
ACGIH TLV:0.05 MG/M3 AS HG,MFR

Ingred Name:SODIUM HYDROXIDE  (SARA III)
CAS:1310-73-2
RTECS #:WB4900000
Fraction by Wt: < 20%
Other REC Limits:NONE SPECIFIED
OSHA PEL:2 MG/M3
ACGIH TLV:C 2 MG/M3; 9293
EPA Rpt Qty:1000 LBS
DOT Rpt Qty:1000 LBS

Ingred Name:SODIUM IODIDE
CAS:7681-82-5
RTECS #:WB6475000
Fraction by Wt: < 10%
Other REC Limits:NONE SPECIFIED

Ingred Name:IODINE
CAS:7553-56-2
RTECS #:NN1575000
Fraction by Wt: < 1%
Other REC Limits:NONE SPECIFIED
OSHA PEL:C 0.1 PPM
ACGIH TLV:C 0.1 PPM; 9192

Ingred Name:WATER, DEMINERALIZED
CAS:7732-18-5
RTECS #:ZC0110000
Fraction by Wt: TO 100%
Other REC Limits:NONE SPECIFIED

=====================  Hazards Identification  =====================

Routes of Entry: Inhalation:YES  Skin:YES  Ingestion:YES
Reports of Carcinogenicity:NTP:NO    IARC:NO	OSHA:NO
Health Hazards Acute and Chronic:ACUTE-MAY BE CORROSIVE TO EYES AND
    SKIN. VERY TOXIC. OVEREXPOSURE CAUSES BURNS. CHRONIC- CUMULATIVE
    POISON.
Effects of Overexposure:SEE HEALTH HAZARDS SECTION.
Medical Cond Aggravated by Exposure:MAY AGGRAVATE ALLERGIES OR
    SENSITIVITY TO MERCURY; EYE OR SKIN CONDITIONS; DISORDERS OF THE
    CENTRAL NERVOUS SYSTEM OR KIDNEY.

=======================  First Aid Measures  =======================

First Aid:EYE AND SKIN CONTACT:IMMEDIATELY FLUSH WITH WATER FOR 15
    MINUTES.REMOVE CONTAMINATED CLOTHING.CALL
    PHYSICIAN.INHALATION:REMOVE TO FRESH AIR.CALL PHYSICIAN.INGESTED:DO
    NOT INDUCE VOMITING.IF CONSCIOUS,  DRINK 1-2 GLASSES OF WATER.CALL
    A PHYSICIAN IMMEDIATELY.

=====================  Fire Fighting Measures  =====================

Flash Point:NOT RELEVANT
Extinguishing Media:MEDIA APPROPRIATE FOR SURROUNDING FIRE.
Fire Fighting Procedures:FIRE FIGHTERS SHOULD USE NIOSH APPROVED SELF
    CONTAIED BREATHING APPARATUS & FULL PROTECTIVE EQUIPMENT WHEN
    FIGHTING CHEMICAL FIRE.
Unusual Fire/Explosion Hazard:FIRE OR EXCESSIVE HEAT MAY CAUSE
    PRODUCTION OF TOXIC FUMES.

==================  Accidental Release Measures  ==================

Spill Release Procedures:DO NOT ALLOW THE MERCURY CONTAMINATE AIR OR
    WATER. SOAK UP SOLUTION WITH INERT MATERIAL. DO NOT BREATHE FUMES.
    DECONTAMINATE AREA WITH MERCURY ABSORBING COMPOUNDS AVAILABLE
    COMMERCIALLY.
Neutralizing Agent:NOT GIVEN

======================	Handling and Storage  ======================

Handling and Storage Precautions:STORE TIGHTLY CLOSED.
Other Precautions:WASH THOROUGHLY AFTER HANDLING. AVOID CONTACT WITH
    EYES, SKIN AND CLOTHING. DO NOT BREATHE FUMES OR VAPORS.

=============  Exposure Controls/Personal Protection  =============

Respiratory Protection:USE NIOSH APPROVED AIR SUPPLIED RESPIRATOR IF
    NEEDED.
Ventilation:USE MECHANICAL (GENERAL) OR LOCAL EXHAUST VENTILATION TO
    MEET TLV REQUIREMENTS.
Protective Gloves:RUBBER GLOVES
Eye Protection:SAFETY GOGGLES WITH OPTIONAL FACE SHIELD
Other Protective Equipment:EYE WASH STATION, SAFETY SHOWER, FUME HOOD,
    LAB GRADE GOGGLES, DISPOSABLE GLOVES, LAB COAT.
Work Hygienic Practices:USE GOOD CHEMICAL HYGIENE PRACTICE. AVOID ALL
    CONTACT IF POSSIBLE.
Supplemental Safety and Health
FORMULATION CHANGED. FOR PREVIOUS FORMULATION, SEE P/N A, SAME NSN.

==================  Physical/Chemical Properties  ==================

HCC:B1
Spec Gravity:1.265
pH:12.1
Solubility in Water:MISCIBLE
Appearance and Odor:CLEAR, LIGHT YELLOW LIQUID
Corrosion Rate:4.245

=================  Stability and Reactivity Data  =================

Stability Indicator/Materials to Avoid:YES
ACIDS, ORGANICS, AMMONIA, ALDEHYDES
Stability Condition to Avoid:EXTREME TEMPERATURES AND LIGHT
Hazardous Decomposition Products:TOXIC FUMES OF MERCURY, IODINE AND
    IODINE COMPOUNDS

====================  Disposal Considerations  ====================

Waste Disposal Methods:DISPOSE OF ALL MERCURY CONTAMINATED MATERIAL IN
    AN EPA APPROVED HAZARDOUS WASTE FACILITY. DISPOSAL SHOULD BE MADE
    IN ACCORDANCE WITH ALL APPLICABLE FEDERAL, STATE AND LOCAL
    ENVIRONMENTAL REGULATIONS.

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 disclaims all liability for its use.  Any person utilizing this
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