NILE
CHEMICALS
NILE
CHEMICALS
Synonyms: Sodium sulfite anhydrous
CAS No.: 7757-83-7
Molecular Weight: 126.04
Chemical Formula: Na2SO3
Product Codes: 970
Ingredient CAS No Percent Hazardous
------------------ ------------ ------------ ---------
Sodium Sulfite 7757-83-7 90 - 100% Yes
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: 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.
Chronic Exposure: No information found.
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 broncho
constriction, shock, gastrointestinal disturbances, angio edema, flushing, and
tingling sensations.
Inhalation: Remove to fresh air. Get medical
attention for any breathing difficulty.
Ingestion: Induce vomiting immediately as directed by medical personnel.
Never give anything by mouth to an unconscious person. Call a physician
immediately.
Skin Contact: Remove any contaminated clothing. Wash skin with soap and
water for at least 15 minutes. Get medical attention if irritation develops or
persists.
Eye Contact: Immediately flush eyes with plenty of water for at least 15
minutes, lifting lower and upper eyelids occasionally. Get medical attention
immediately.
Fire: 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
facepiece operated in the pressure demand or other positive pressure mode.
Ventilate area of leak or spill. Wear appropriate personal protective equipment as specified in Section 8
Keep 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 this material may be hazardous when empty since they retain product residues (dust, solids); observe all warnings and precautions listed for the product.
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 facepiece 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, glycerine, 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-facepiece 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.
Appearance: White crystals.
Odor: Odorless.
Solubility: Soluble in ca. 3.2 parts water.
Specific Gravity: 2.6 @ 15.4C (60F)
pH: ca. 9
% 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.
Stability: Stable under ordinary conditions of use
and storage. Heat and moisture contribute to instability. May air-oxidize.
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.
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
Environmental Fate: No information found.
Environmental Toxicity: No information found.
Whatever cannot be saved for recovery or recycling should be managed in an appropriate and approved waste disposal facility. Processing, use or contamination of this product may change the waste management options. State and local disposal regulations may differ from federal disposal regulations. Dispose of container and unused contents in accordance with federal, state and local requirements.
Not regulated.
--------\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.
WHMIS: This MSDS has been prepared according to the hazard criteria of
the Controlled Products Regulations (CPR) and the MSDS contains all of the
information required by the CPR.
Disclaimer: Nile Chemicals. provides the
information contained herein in good faith but makes no representation as to its
comprehensiveness or accuracy. This document 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. NILE CHEMICALS. MAKES NO REPRESENTATIONS OR WARRANTIES, EITHER EXPRESS
OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE WITH RESPECT TO THE INFORMATION SET FORTH
HEREIN OR THE PRODUCT TO WHICH THE INFORMATION REFERS. ACCORDINGLY, NILE
CHEMICALS. WILL NOT BE RESPONSIBLE FOR DAMAGES RESULTING FROM USE OF OR RELIANCE
UPON THIS INFORMATION.
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