Sodium Sulfite MSDS Sheet, Material Safety Data
Sheet
1. Product IdentificationSynonyms: Sodium sulfite anhydrous; disodium sulfite;
sulfurous acid, disodium salt; exsiccated sodium sulfite
CAS No.: 7757-83-7
Molecular Weight: 126.04
Chemical Formula: Na2SO3
2. Composition/Information on Ingredients
Ingredient: Sodium Sulfite
CAS No.: 7757-83-7
Percent: 90 - 100%
Hazardous: Yes
3. Hazards Identification
Emergency Overview
WARNING! HARMFUL IF SWALLOWED. MAY CAUSE ALLERGIC REACTION AND BREATHING
DIFFICULTIES. MAY CAUSE IRRITATION TO SKIN, EYES, AND RESPIRATORY TRACT.
Potential Health Effects
Although only moderately toxic, in large amounts Sodium sulfite can pose
risk to some asthmatics producing central nervous system depression,
bronchi constriction and anaphylaxis.
Inhalation: Inhalation of dust may cause irritation to the mucous membranes
of the upper respiratory tract. Use of bronchodilators preserved with
sulfites can cause allergic reactions.
Ingestion: Sodium sulfite may cause gastric irritation by the liberation of
sulfurous acid. Large doses may result in circulatory disturbances,
diarrhea, and central nervous system depression. Estimated fatal dose is 0.5
to > 5g/kg.
Skin Contact: May cause irritation.
Eye Contact: May cause irritation, redness and pain.
Aggravation of Pre-existing Conditions: Some individuals are said to be
dangerously sensitive to minute amounts of sulfites in foods and some
bronchodilator medicines preserved with sulfites. Symptoms may include
bronchi constriction, shock, gastrointestinal disturbances, angio edema,
flushing, and tingling sensations.
4. First Aid Measures
Eye Contact: Check for and remove any contact lenses. In case of
contact, immediately flush eyes with plenty of water for at least 15
minutes. Cold water may be used. Get medical attention.
Skin Contact: In case of contact, immediately flush skin with plenty
of water. Cover the irritated skin with an emollient. Remove contaminated
clothing and shoes. Cold water may be used. Wash clothing before reuse.
Thoroughly clean shoes before reuse. Get medical attention.
Inhalation: If inhaled, remove to fresh air. If not breathing, give
artificial respiration. If breathing is difficult, give oxygen. Get medical
attention.
Ingestion: Do NOT induce vomiting unless directed to do so by
medical personnel. Never give anything by mouth to an unconscious person. If
large quantities of this material are swallowed, call a physician
immediately. Loosen tight clothing such as a collar, tie, belt or waistband.
5. Fire Fighting Measures
Fire: Sodium sulfite is not considered to be a fire
hazard. If involved in a fire, can emit toxic fumes and irritating and
corrosive gases.
Explosion: Not considered to be an explosion hazard.
Fire Extinguishing Media: Use any means suitable for extinguishing
surrounding fire.
Special Information: In the event of a fire, wear full protective clothing
and NIOSH-approved self-contained breathing apparatus with full face piece
operated in the pressure demand or other positive pressure mode.
6. Accidental Release Measures
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 legal requirements.
Large Spill: 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.
7. Handling and Storage
Keep Sodium sulfite in a tightly closed container.
Protect from physical damage. Store in a cool, dry, ventilated area away
from sources of heat, moisture and incompatibilities. Containers of Sodium
sulfite may be hazardous when empty since they retain product residues
(dust, solids); observe all warnings and precautions listed for the product.
8. Exposure Controls/Personal Protection
Airborne Exposure Limits: -ACGIH Threshold Limit Value (TLV) -
5mg/m3 (TWA) for sodium bisulfite & for sodium metabisulfite, A4 Not
classifiable as a human carcinogen.
Ventilation System: A system of local and/or general exhaust is recommended to keep employee
exposures below the Airborne Exposure Limits. Local exhaust ventilation is
generally preferred because it can control the emissions of the contaminant
at its source, preventing dispersion of it into the general work area.
Please refer to the ACGIH document, Industrial Ventilation, A Manual of
Recommended Practices, most recent edition, for details.
Personal Respirators (NIOSH Approved): If the exposure limit is exceeded and engineering controls are not
feasible, a half face piece particulate respirator (NIOSH type N95 or better
filters) may be worn for up to ten times the exposure limit or the maximum
use concentration specified by the appropriate regulatory agency or
respirator supplier, whichever is lowest.. A full-face piece particulate
respirator (NIOSH type N100 filters) may be worn up to 50 times the exposure
limit, or the maximum use concentration specified by the appropriate
regulatory agency, or respirator supplier, whichever is lowest. If oil
particles (e.g. lubricants, cutting fluids, glycerin, etc.) are present,
use a NIOSH type R or P filter. For emergencies or instances where the
exposure levels are not known, use a full-face piece positive-pressure,
air-supplied respirator. WARNING: Air-purifying respirators do not protect
workers in oxygen-deficient atmospheres.
Skin Protection: Wear protective gloves and clean body-covering clothing.
Eye Protection: Use chemical safety goggles. Maintain eye wash fountain and quick-drench
facilities in work area.
9. Physical and Chemical Properties
Appearance: Sodium sulfite is white crystals.
Odor: Slightly sulfurous odor.
Solubility: Soluble in ca. 3.2 parts water.
Specific Gravity: 2.6 @ 15.4C (60F)
pH:. 9.5 approx.
% Volatiles by volume @ 21C (70F): 0
Boiling Point: Not applicable.
Melting Point: No information found.
Vapor Density (Air=1): No information found.
Vapor Pressure (mm Hg): No information found.
Evaporation Rate (BuAc=1): No information found.
10. Stability and Reactivity
Stability: Sodium sulfite is stable under ordinary conditions of use
and storage. Heat and moisture & air contribute to instability.
Hazardous Decomposition Products: Burning may produce sulfur oxides.
Hazardous Polymerization: Will not occur.
Incompatibilities: Acids, strong oxidizers, high temperatures.
Conditions to Avoid: Heat and moisture.
11. Toxicological Information
Oral mouse LD50: 820 mg/kg. Investigated as a tumorigen
and mutagen.--------\Cancer Lists\------------------------------------------------------
------------------------------- -NTP Carcinogen---
Ingredient ----------------- Known Anticipated IARC Category
---------------------------- ----- ----------- -------------
Sodium Sulfite (7757-83-7) --- No ----- No ---------- 3
12. Ecological Information
Environmental Fate:
No information found.
Environmental Toxicity:
No information found.
13. Disposal Considerations
Dispose of Sodium sulfite containers and unused
contents in accordance with legal requirements.
14. Transport Information
Not regulated.
15. Regulatory Information
--------\Chemical Inventory Status - Part 1\---------------------------------
Ingredient ----------------- TSCA ----- EC ---- Japan - Australia
---------------------------- ---- --- ----- ---------
Sodium Sulfite (7757-83-7) Yes ------ Yes ---- Yes --- Yes
--------\Chemical Inventory Status - Part 2\---------------------------------
--------------------------------------- --Canada--
Ingredient ----------------- Korea ---- DSL --- NDSL -- Phil.
---------------------------- ----- --- ---- -----
Sodium Sulfite (7757-83-7) Yes ------ Yes --- No ---- Yes
--------\Federal, State & International Regulations - Part 1\----------------
---------------------------- -SARA 302- ------SARA 313------
Ingredient ----------------- RQ TPQ List Chemical Catg.
---------------------------- --- ----- ---- --------------
Sodium Sulfite (7757-83-7) No -- No --- No ---- No
--------\Federal, State & International Regulations - Part 2\----------------
------------------------------------ -RCRA- -TSCA-
Ingredient ----------------- CERCLA 261.33 8(d)
---------------------------- ------ ------ ------
Sodium Sulfite (7757-83-7) No ---- No ----- No
Chemical Weapons Convention: No; TSCA 12(b): No; CDTA: No
SARA 311/312: Acute: Yes; Chronic: No; Fire: No; Pressure: No
Reactivity: No (Pure / Solid)
Australian Hazchem Code: None allocated.
Poison Schedule: None allocated.US Federal and State Regulations: TSCA 8(b) inventory: Sodium
sulfite
WHMIS (Canada): Not controlled under WHMIS (Canada).
DSCL (EEC):
R22- Harmful if swallowed. R36/37/38- Irritating to eyes, respiratory
system and skin. S22- Do not breathe dust. S24/25- Avoid contact with skin
and eyes. S26- In case of contact with eyes, rinse immediately with plenty
of water and seek medical advice.
S36- Wear suitable protective clothing.
HMIS (U.S.A.):
Health Hazard: 2
Fire Hazard: 0
Reactivity: 0
Personal Protection: E
National Fire Protection Association (U.S.A.):
Health: 1
Flammability: 0
Reactivity: 0
Specific hazard:
Protective Equipment:
Gloves. Lab coat. Dust respirator. Be sure to use an approved/certified
respirator or equivalent. Safety glasses.
16. Other Information
Disclaimer:
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Our company provides this
Sodium Sulfite MSDS information contained
herein in good faith but makes no representation as to its comprehensiveness
or accuracy. This
Sodium Sulfite MSDS sheet is intended only as a
guide to the appropriate precautionary handling of the material by a
properly trained person using this product. Individuals receiving the
information must exercise their independent judgment in determining its
appropriateness for a particular purpose.
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Sodium Sulphite Manufacturers USP FCC ACS IP
Sodium Sulphite manufacturers
Sodium Sulfite manufacturers at:
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CHEMICALS
S-8, SARIFA MANSION, 2ND FLANK ROAD, CHINCHBUNDER, MUMBAI
400009, INDIA
TEL: (OFFICE) 91-22-23770100, 23726950, 23774610,
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Applicable.
Last updated
05 December, 2011
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