EMS CATALOG NO: 21300
EMS PRODUCT: SODIUM SULFITE
DATE: 06/22/99
PAGE NUMBER: ONE OF 7
MATERIAL SAFETY DATA SHEET
The information contained herein is based on data considered
accurate. However, no warranty is expressed or implied
regarding the accuracy of these data or the results to be
obtained from the use thereof.
Electron Microscopy Sciences assumes no responsibility for
personal injury or property damage to vendees, users or
third parties caused by the material. Such vendees or users
assume all risks associated with the use of the material.
ELECTRON MICROSCOPY SCIENCES
321 MORRIS ROAD
P.O. BOX 251
FORT WASHINGTON, PA 19034 24 HOUR EMERGENCY PHONE NUMBER
(215) 646-1566 CHEMTREC: (800) 424-9300
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FOR PRODUCT AND SALES INFORMATION
_________________________________________________________________
CONTACT ELECTRON MICROSCOPY SCIENCES OFFICE ABOVE.
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PRODUCT IDENTIFICATION
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COMMON NAME: Sodium Sulfite
COMMERCIAL NAME(S): Not available.
SYNONYM: Disodium Salt
CHEMICAL NAME: Sulfurous Acid, disodium salt
CHEMICAL FAMILY: Not available.
CHEMICAL FORMULA: Na2SO3
CAS#: 7757-83-7
RTECS: WE2150000
TSCA: On the TSCA list.
CI#: Not available.
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COMPOSITION AND INFORMATION ON INGREDIENTS
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NAME: Sodium Sulfite
CAS#: 7757-83-7
% BY WEIGHT: 100
TOXICOLOGICAL DATA ON INGREDIENTS:
ORAL (LD50): Acute 820 mg/kg (Mouse.).
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HAZARDS IDENTIFICATION
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POTENTIAL ACUTE HEALTH EFFECTS:
Very dangerous in case of skin contact (irritant), of eye
contact (irritant), of ingestion, of inhalation. Very
slightly to slightly dangerous in case of skin contact
(sensitizer). This product may irritate eyes and skin upon
contact. Inflammation of the eye is characterized by
redness, watering, and itching. Skin inflammation is
characterized by itching, scaling, reddening, or
occasionally, blistering.
POTENTIAL CHRONIC HEALTH EFFECTS:
CARCINOGENIC EFFECTS: Not available.
MUTAGENIC EFFECTS: Not available.
TERATOGENIC EFFECTS: Not available.
Toxicity of the product to the reproductive system: Not
available. There is no known effect from chronic exposure
to this product. Repeated or prolonged exposure is not
known to aggravate medical condition.
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FIRST AID MEASURES
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EYE CONTACT:
Check for and remove any contact lenses. IMMEDIATELY flush
eyes with running water for at least 15 minutes, keeping
eyelids open. COLD water may be used. DO NOT use an eye
ointment. Seek medical attention.
SKIN CONTACT:
If the chemical got onto the clothed portion of the body,
remove the contaminated clothes as quickly as possible,
protecting you own hands and body. Place the victim under a
deluge shower. If the chemical touches the victim's exposed
skin, such as the hands: Gently and thoroughly wash the
contaminated skin with running water and non-abrasive soap.
Be particularly careful to clean folds, crevices, creases
and groin. COLD water may be used. Cover the irritated
skin with an emollient. If irritation persists, seek
medical attention. Wash contaminated clothing before
reusing.
SERIOUS SKIN CONTACT:
Wash with a disinfectant soap and cover the contaminated
skin with an anti-bacterial cream. Seek medical attention.
INHALATION:
Allow the victim to rest in a well ventilated area. Seek
immediate medical attention.
SERIOUS INHALATION: No additional information.
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INGESTION:
Remove dentures if any. Have conscious person drink several
glasses of water or milk. INDUCE VOMITING by sticking
finger in throat. Lower the head so that the vomit will not
reenter the mouth and throat. NEVER give an unconscious
person anything to ingest. Seek medical attention.
SERIOUS INGESTION: No additional information.
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FIRE AND EXPLOSION DATA
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FLAMMABILITY OF THE PRODUCT: Non-flammable.
AUTO-IGNITION TEMPERATURE: Not applicable.
FLASH POINTS: Not applicable.
FLAMMABLE LIMITS: Not applicable.
PRODUCTS OF COMBUSTION: Not applicable.
FIRE HAZARDS IN PRESENCE OF VARIOUS SUBSTANCES: Not applicable.
EXPLOSION HAZARDS IN PRESENCE OF VARIOUS SUBSTANCES:
RISKS OF EXPLOSION OF THE PRODUCT IN PRESENCE OF MECHANICAL
IMPACT: Not available.
RISKS OF EXPLOSION OF THE PRODUCT IN PRESENCE OF STATIC
DISCHARGE: Not available.
No specific information is available in our database
regarding the product's risks of explosion in the presence
of various materials.
FIRE FIGHTING MEDIA AND INSTRUCTIONS: Non-flammable.
SPECIAL REMARKS ON FIRE HAZARDS: Keep container tightly closed.
SPECIAL REMARKS ON EXPLOSION HAZARDS: No additional remark.
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ACCIDENTAL RELEASE MEASURES
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SMALL SPILL:
Use appropriate tools to put the spilled solid in a
convenient waste disposal container. Finish cleaning by
spreading water on the contaminated surface and dispose of
according to local and regional authority requirements.
LARGE SPILL:
Our database contains no additional information in case of a
spill and/or a leak of the product. Use a shovel to put the
material into a convenient waste disposal container. Finish
cleaning by spreading water on the contaminated surface and allow
to evacuate through the sanitary system.
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HANDLING AND STORAGE
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PRECAUTIONS:
DO NOT ingest. DO NOT breathe dust. In case of
insufficient ventilation, wear suitable respiratory equipment.
If ingested, seek medical advice immediately and show the
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container or the label. Avoid contact with skin and eyes. Keep
away from incompatibles as oxidizing agents, organic materials,
metals, acids.
STORAGE:
No specific storage is required. Use shelves or cabinets
sturdy enough to bear the weight of the chemicals. Be sure that
it is not necessary to strain to reach materials, and the shelves
are not overloaded.
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EXPOSURE CONTROLS/PERSONAL PROTECTION
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ENGINEERING CONTROLS:
Use process enclosures, local exhaust ventilation, or other
engineering controls to keep airborne levels below recommended
exposure limits. If user operations generate dust, fume or mist,
use ventilation to keep exposure the airborne contaminants below
the exposure limit.
PERSONAL PROTECTION:
Splash goggles. Lab coat. Dust respirator. Be sure to use
a MSHA/NIOSH approved respirator or equivalent. Gloves
(impervious). Wear appropriate respirator when ventilation is
inadequate.
PERSONAL PROTECTION IN CASE OF A LARGE SPILL:
Splash goggles. Full suit. Dust respirator. Boots.
Gloves. A self contained breathing apparatus should be used to
avoid inhalation of the product. Suggested protective clothing
might not be sufficient; consult a specialist BEFORE handling
this product.
EXPOSURE LIMITS: Not available.
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PHYSICAL AND CHEMICAL PROPERTIES
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PHYSICAL STATE AND APPEARANCE: Solid (Solid crystalline powder.)
ODOR: Sulfurous. (Slight.)
TASTE: Sulfurous. (Slight.)
COLOR: White.
MOLECULAR WEIGHT: 126.04
pH (1% SOLN/WATER): 9
BOILING POINT: Not available.
MELTING POINT: Decomposes.
CRITICAL TEMPERATURE: Not available.
SPECIFIC GRAVITY: 2.63 (Water = 1)
VAPOR PRESSURE: Not available.
VAPOR DENSITY: Not available.
VOLATILITY: Not available.
ODOR THRESHOLD: Not available.
WATER/OIL DIST. COEFF.: Only soluble or dispersed in water.
IONICITY (IN WATER): Not available.
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DISPERSION PROPERTIES: See solubility in water.
SOLUBILITY: Soluble in hot water.
Partially soluble in cold water.
Very slightly soluble in methanol.
Insoluble in diethyl ether, n-octanol.
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STABILITY AND REACTIVITY DATA
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STABILITY: The product is stable.
INSTABILITY TEMPERATURE: Not available.
CONDITIONS OF INSTABILITY: No additional remark.
INCOMPATIBILITY WITH VARIOUS SUBSTANCES:
Highly reactive with oxidizing agents, acids. Slightly
reactive to reactive with organic materials, metals. Very
slightly to slightly reactive with moisture.
CORROSIVITY: Slightly corrosive to corrosive in presence of
aluminum, of zinc, of copper. Very slightly to slightly
corrosive in presence of steel.
SPECIAL REMARKS ON REACTIVITY: Air and light sensitive.
SPECIAL REMARKS ON CORROSIVITY: No additional remark.
POLYMERIZATION: No.
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TOXICOLOGICAL INFORMATION
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ROUTES OF ENTRY: Ingestion. Inhalation.
TOXICITY TO ANIMALS:
Acute oral toxicity (LD50): 820 mg/kg (Mouse.).
CHRONIC EFFECTS ON HUMANS: Toxicity of the product to the
reproductive system: Not available.
OTHER TOXIC EFFECTS ON HUMANS: Very dangerous in case of skin
contact (irritant), of eye contact (irritant), of ingestion,
of inhalation. Very slightly to slightly dangerous in case
of skin contact (sensitizer).
SPECIAL REMARKS ON TOXICITY TO ANIMALS: No additional remark.
SPECIAL REMARKS ON CHRONIC EFFECTS ON HUMANS: Can cause
gastrointestinal disturbances.
SPECIAL REMARKS ON OTHER TOXIC EFFECTS ON HUMANS: No additional
remark.
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ECOLOGICAL INFORMATION
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ECOTOXICITY: Not available.
BOD5 AND COD: Not available.
PRODUCTS OF BIODEGRADATION: Some metallic oxides.
TOXICITY OF THE PRODUCTS OF BIODEGRADATION: The products of
degradation are more toxic.
SPECIAL REMARKS ON THE PRODUCTS OF BIODEGRADATION: No additional
remark.
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DISPOSAL CONSIDERATIONS
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WASTE DISPOSAL: Recycle to process, if possible. Consult your
local or regional authorities.
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TRANSPORT INFORMATION
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DOT CLASSIFICATION: Not a DOT controlled material (United States).
IDENTIFICATION: Not applicable (PIN and PG).
SPECIAL PROVISIONS FOR TRANSPORT: Not applicable.
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OTHER REGULATORY INFORMATION
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FEDERAL AND STATE REGULATIONS: The following product is listed on
TSCA: Sodium Sulfite
OTHER REGULATIONS: OSHA: Hazardous by definition of Hazard
Communication Standard (29 CFR 1910.1200).
OTHER CLASSIFICATIONS:
WHMIS (CANADA):WHMIS CLASS D-2B: Material causing other
toxic effects (TOXIC).
DSCLA (EEC): R22-Harmful if ingested.
R36/38-Irritating to eyes and skin.
HMIS (U.S.A.):
HEALTH HAZARD: 2
FIRE HAZARD: 0
REACTIVITY: 1
PERSONAL PROTECTION: e
NATIONAL FIRE PROTECTION ASSOCIATION (U.S.A.)
HEALTH: 1
FLAMMABILITY: 0
REACTIVITY: 1
SPECIFIC HAZARD:
PROTECTIVE EQUIPMENT: Gloves (impervious).
Lab coat.
Dust respirator. Be sure to use a
MSHA/NIOSH approved respirator or
equivalent. Wear appropriate respirator
when ventilation is inadequate.
Splash goggles.
OTHER SPECIAL CONSIDERATIONS: No additional remark.
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