MATERIAL SAFETY DATA SHEET
Sesqui鈩? Sodium Sesquicarbonate
MSDS Ref. No.: 533-96-0
Date Approved: 08/01/2005
Revision No.: 7
This document has been prepared to meet the requirements of the U.S. OSHA Hazard Communication
Standard, 29 CFR 1910.1200; the Canada鈥檚 Workplace Hazardous Materials Information System (WHMIS)
and, the EC Directive, 2001/58/EC.
1. PRODUCT AND COMPANY IDENTIFICATION
Sesqui鈩? Sodium Sesquicarbonate
PRODUCT NAME:
Trisodium Hydrogendicarbonate Sesqui
SYNONYMS:
Hard surface cleanser ingredient, industrial cleaner ingredient, bath
GENERAL USE:
salt ingredient, water softener, diaper rinse ingredient, swimming
pool, flue gas desulfurization, pH adjustment in chemical processes,
water treatment, leather tanning, food additive, food and dairy plant
sanitizers.
This chemical is certified to ANSI/NSF Standard 60, Drinking Water
Chemicals-Health Effects (as packaged in the original, unopened
container). The maximum dosage level for this chemical is 100 mg/L
MANUFACTURER EMERGENCY TELEPHONE NUMBERS
FMC Wyoming Corporation (800) 424-9300 (CHEMTREC - U.S.)
Alkali Chemicals Division (303) 595-9048 (Medical - Call Collect)
1735 Market Street
Philadelphia, PA 19103 (307) 872-2452 (Plant - Green River, WY)
(215) 299-6000 (General Information)
2. HAZARDS IDENTIFICATION
EMERGENCY OVERVIEW:
鈥? White, odorless, needle-shaped particles.
鈥? Product is non-combustible.
鈥? Reacts with acids to release carbon dioxide gas and heat.
POTENTIAL HEALTH EFFECTS: Direct contact with the product causes irritation of
the eyes and continuous contact may cause skin irritation (red, dry, cracked skin). Excessive levels of
airborne dust may irritate the mucous membranes and upper respiratory tract.
Page 1 of 9
Sesqui鈩? Sodium Sesquicarbonate (533-96-0) Date: 08/01/2005
3. COMPOSITION / INFORMATION ON INGREDIENTS
Chemical Name CAS# Wt.% EC No. EC Class
Sodium Sesquicarbonate 533-96-0 100 208-580-9 Not classified as hazardous
4. FIRST AID MEASURES
EYES: Flush with water for at least 15 minutes. If irritation occurs and persists, obtain medical
attention.
SKIN: Wash with plenty of soap and water. Get medical attention if irritation occurs and persists.
INGESTION: Drink plenty of water. Never give anything by mouth to an unconscious person. If any
discomfort persists, obtain medical attention.
INHALATION: Remove to fresh air. If breathing difficulty or discomfort occurs and persists, obtain
medical attention.
NOTES TO MEDICAL DOCTOR: Internal toxicity is low. Irritant effects may occur.
Treatment is symptomatic and supportive.
5. FIRE FIGHTING MEASURES
EXTINGUISHING MEDIA: Water, water fog, carbon dioxide (CO2), dry chemical
FIRE / EXPLOSION HAZARDS: None
FIRE FIGHTING PROCEDURES: None
FLAMMABLE LIMITS: Not applicable
HAZARDOUS COMBUSTION PRODUCTS: Fumes of sodium oxide.
SENSITIVITY TO IMPACT: None
Page 2 of 9
Sesqui鈩? Sodium Sesquicarbonate (533-96-0) Date: 08/01/2005
SENSITIVITY TO STATIC DISCHARGE: None
6. ACCIDENTAL RELEASE MEASURES
COMMENTS: PERSONAL PRECAUTIONS: Refer to Section 8 "Exposure Controls / Personal
Protection".
CONTAINMENT: Prevent large quantities of this product from contacting vegetation or waterways; large
spills could kill vegetation and fish.
CLEAN-UP: This product, if spilled, can be recovered and re-used if contamination does not present a
problem. Vacuum or sweep up the material. If the spilled product is unusable due to contamination,
consult state or federal environmental agencies for acceptable disposal procedures and locations. See
Section 13 "Disposal Considerations".
NOTIFICATION REQUIREMENTS: Federal regulations do not require notification for spills of this
product. State and local regulations may contain different requirements; consult local authorities.
7. HANDLING AND STORAGE
HANDLING: Use air conveying/mechanical systems for bulk transfer to storage. For manual
handling of bulk transfer use mechanical ventilation to remove airborne dust from railcar, ship or truck.
Use approved respiratory protection when ventilation systems are not available. Selection of respirators is
based on the dust cloud generated.
STORAGE: Protect from excessive heat and moisture. Store away from acids.
COMMENTS: Use appropriate protective equipment if dust is generated or contact with eyes or
skin is expected. If ventilation is inadequate or not available, use dust respirator and eye protection.
8. EXPOSURE CONTROLS / PERSONAL PROTECTION
ENGINEERING CONTROLS: Where possible, provide general mechanical and/or local
exhaust ventilation to prevent release of airborne dust into the work environment.
PERSONAL PROTECTIVE EQUIPMENT
EYES AND FACE: Appropriate eye and face protection equipment (ANSI Z87
approved) should be selected for the particular use intended for this material. Safety glasses with
side shields are recommended.
RESPIRATORY: Whenever dust in the worker's breathing zone cannot be controlled with
ventilation or other engineering means, workers should wear respirators or dust masks approved by
Page 3 of 9
Sesqui鈩? Sodium Sesquicarbonate (533-96-0) Date: 08/01/2005
NIOSH/MSHA, EU CEN or comparable certification organization to protect them against airborne
dust.
PROTECTIVE CLOTHING: Dry product is generally non-irritating to intact skin.
However, this product can be irritating where skin has been damaged and can create skin irritation
after long exposures when moisture is present. Under such conditions, gloves and long-sleeved
clothing are recommended to minimize skin contact.
COMMENTS:
ADDITIONAL EXPOSURE GUIDELINES:
Federal guidelines treat the ingredient(s) in this product as a nuisance dust, as no product-specific
guidelines have been issued for exposure. As with all nuisance dusts, worker breating zone concentrations
should be measured by validated sampling and analytical methods. The following limits (OSHA and
MSHA) apply to this material:
Particulates Not Otherwise Regulated:
OSHA (PEL / TWA): 15 mg/m鲁 (total dust); 5 mg/m鲁 (resp fraction)
MSHA (PEL / TWA): 10 mg/m鲁 (total dust)
The information noted above provides general guidance for handling this product. Specific work
environments and material handling practices will dictate the selection and use of personal protection
equipment (PPE).
9. PHYSICAL AND CHEMICAL PROPERTIES
Odorless
ODOR:
White, needle-shaped particles.
APPEARANCE:
Not applicable
AUTOIGNITION TEMPERATURE:
Not applicable
BOILING POINT:
Not available
COEFFICIENT OF OIL / WATER:
0.74 g/mL
DENSITY / WEIGHT PER VOLUME:
Not applicable (Butyl Acetate = 1)
EVAPORATION RATE:
Not applicable
FLASH POINT:
Decomposes on heating with release of carbon dioxide
MELTING POINT:
gas.
Not available
ODOR THRESHOLD:
Not applicable
OXIDIZING PROPERTIES:
Not applicable
PERCENT VOLATILE:
Page 4 of 9
Sesqui鈩? Sodium Sesquicarbonate (533-96-0) Date: 08/01/2005
9.9 (1% solution)
pH:
17.1 % @ 25 掳C 21.5 % @ 50 掳C (as Sesqui)
SOLUBILITY IN WATER:
2.12 (H2O=1)
SPECIFIC GRAVITY:
Not applicable (Air = 1)
VAPOR DENSITY:
Not applicable
VAPOR PRESSURE:
10. STABILITY AND REACTIVITY
Contact with acids except under controlled
CONDITIONS TO AVOID:
conditions.
Stable
STABILITY:
Will not occur
POLYMERIZATION:
Aluminum powder, strong acids, fluorine, molten
INCOMPATIBLE MATERIALS:
lithium. Reacts with acids with release of large
volumes of carbon dioxide gas and heat.
None
HAZARDOUS DECOMPOSITION PRODUCTS:
11. TOXICOLOGICAL INFORMATION
EYE EFFECTS: Irritant (rabbit) [Toxicology 23:281, 1982]
SKIN EFFECTS: Non-irritating (rabbit) [FMC Study I98-2239]
DERMAL LD50: No data available for the product.
ORAL LD50: > 2,000 mg/kg (rat) [FMC Study I98-2238]
INHALATION LC50: > 5.03 mg/l (4 h) (rat) [FMC Study I98-2261]
SENSITIZATION: (Skin) Non-sensitizing (guinea pig) [FMC Study I98-2262]
ACUTE EFFECTS FROM OVEREXPOSURE: May cause irritation of eyes. Dusts
and mists may be irritating to the skin, mucous membranes and upper respiratory tract. No significant acute
toxicological effects expected.
CHRONIC EFFECTS FROM OVEREXPOSURE: Repeated contact may cause red,
dry, cracked skin. May cause irritation of the respiratory airways, mucous membranes and eyes.
Page 5 of 9
Sesqui鈩? Sodium Sesquicarbonate (533-96-0) Date: 08/01/2005
CARCINOGENICITY:
Not listed
NTP:
Not listed
IARC:
Not listed
OSHA:
(ACGIH) Not listed
OTHER:
12. ECOLOGICAL INFORMATION
ECOTOXICOLOGICAL INFORMATION: No data available for the product.
CHEMICAL FATE INFORMATION: Biodegradability does not apply to inorganic
substances.
13. DISPOSAL CONSIDERATIONS
DISPOSAL METHOD: When this product is discarded or disposed of, as purchased, it is
neither a characteristic nor a listed hazardous waste according to US Federal RCRA regulations (40 CFR
261). As a non-hazardous waste the material may be disposed of in a landfill in accordance with
government regulations; check local or state regulations for applicable requirements prior to disposal. Any
processing, usage, alteration, chemical additions to, or contamination of, the product may alter the disposal
requirements. Under Federal regulations, it is the generator's responsibility to determine if a waste is a
hazardous waste.
14. TRANSPORT INFORMATION
U.S. DEPARTMENT OF TRANSPORTATION (DOT)
Not regulated
PROPER SHIPPING NAME:
Not applicable
PRIMARY HAZARD CLASS / DIVISION:
None
UN/NA NUMBER:
Not applicable
LABEL(S):
Not applicable
PLACARD(S):
Not applicable
MARKING(S):
Hazardous Substance/RQ: Not applicable
ADDITIONAL INFORMATION:
49 STCC Number: Not applicable
Page 6 of 9
Sesqui鈩? Sodium Sesquicarbonate (533-96-0) Date: 08/01/2005
INTERNATIONAL MARITIME DANGEROUS GOODS (IMDG)
Not regulated
ADDITIONAL INFORMATION:
INTERNATIONAL CIVIL AVIATION ORGANIZATION (ICAO) /
INTERNATIONAL AIR TRANSPORT ASSOCIATION (IATA)
Not regulated
ADDITIONAL INFORMATION:
15. REGULATORY INFORMATION
UNITED STATES
SARA TITLE III (SUPERFUND AMENDMENTS AND REAUTHORIZATION ACT)
SECTION 302 EXTREMELY HAZARDOUS SUBSTANCES (40 CFR 355, APPENDIX A):
Not listed
SECTION 311 HAZARD CATEGORIES (40 CFR 370):
Immediate (Acute) Health Hazard
SECTION 312 THRESHOLD PLANNING QUANTITY (40 CFR 370):
The Threshold Planning Quantity (TPQ) for this product, if treated as a mixture, is 10,000 lbs;
however, this product contains the following ingredients with a TPQ of less than 10,000 lbs.:
None
SECTION 313 REPORTABLE INGREDIENTS (40 CFR 372):
Not listed
CERCLA (COMPREHENSIVE ENVIRONMENTAL RESPONSE COMPENSATION AND
LIABILITY ACT)
CERCLA DESIGNATION & REPORTABLE QUANTITIES (RQ) (40 CFR 302.4):
Not listed as a hazardous substance
TSCA (TOXIC SUBSTANCE CONTROL ACT)
TSCA INVENTORY STATUS (40 CFR 710):
Listed
RESOURCE CONSERVATION AND RECOVERY ACT (RCRA)
RCRA IDENTIFICATION OF HAZARDOUS WASTE (40 CFR 261):
Waste Number: Refer to Section 13 "Disposal Considerations" for RCRA status.
Page 7 of 9
Sesqui鈩? Sodium Sesquicarbonate (533-96-0) Date: 08/01/2005
CANADA
WHMIS (WORKPLACE HAZARDOUS MATERIALS INFORMATION SYSTEM):
Product Identification Number: Not applicable
Hazard Classification / Division: Not applicable
Ingredient Disclosure List: Listed
COMMENTS:
CLEAN WATER ACT (CWA) - SECTION 307 / 311
Not listed as a hazardous pollutant (40 CFR 116), nor as a toxic pollutant (40 CFR 401.15)
CLEAN AIR ACT (CAA) - SECTION 112
Not regulated under the chemical accident prevention provisoins (40 CFR 68)
16. OTHER INFORMATION
HMIS
Health 1
Flammability 0
Physical Hazard 0
Personal Protection (PPE) B
Protection = B (Safety glasses and gloves)
HMIS = Hazardous Materials Identification System
Degree of Hazard Code:
4 = Severe
3 = Serious
2 = Moderate
1 = Slight
0 = Minimal
NFPA
Health 1
Flammability 0
Reactivity 0
Special None
No special requirements
NFPA = National Fire Protection Association
Degree of Hazard Code:
4 = Extreme
3 = High
2 = Moderate
1 = Slight
Page 8 of 9
Sesqui鈩? Sodium Sesquicarbonate (533-96-0) Date: 08/01/2005
0 = Insignificant
REVISION SUMMARY:
This MSDS replaces Revision #6, dated January 26, 2004.
Changes in information are as follows:
Section 7 (Handling and Storage)
Section 16 (Other Information)
Sesqui and FMC Logo - FMC Trademarks
漏 2005 FMC Corporation. All Rights Reserved.
FMC Corporation believes that the information and recommendations contained herein (including data and
statements) are accurate as of the date hereof. NO WARRANTY OF FITNESS FOR ANY PARTICULAR
PURPOSE, WARRANTY OF MERCHANTABILITY, OR ANY OTHER WARRANTY, EXPRESSED
OR IMPLIED, IS MADE CONCERNING THE INFORMATION PROVIDED HEREIN. The information
provided herein relates only to the specific product designated and may not be applicable where such
product is used in combination with any other materials or in any process. It is a violation of Federal law to
use this product in a manner inconsistent with its labeling. Further, since the conditions and methods of use
are beyond the control of FMC Corporation, FMC Corporation expressly disclaims any and all liability as
to any results obtained or arising from any use of the product or reliance on such information.
Page 9 of 9
|