Prepared by: Strategic Services Division
Phone Number: (314) 539-1600 (U.S.A.)
SODIUM HYPOCHLORITE SOLUTION
MSDS Number: S4106 --- Effective Date: 03/26/99
1. Product Identification
Synonyms: Bleach; hypochlorous acid, sodium salt; soda bleach;
sodium oxychloride
CAS No.: 7681-52-9
Molecular Weight: 74.44
Chemical Formula: NaOCl
Product Codes:
J.T. Baker:
0235, 9416
Mallinckrodt:
7216
2. Composition/Information on Ingredients
Ingredient CAS No Percent Hazardous
--------------------------------------- ------------ ------- ---------
Sodium Hypochlorite (as NaOCl) 7681-52-9 4 - 7% Yes
Water 7732-18-5 > 92% No
Sodium Hydroxide 1310-73-2 < 1% Yes
3. Hazards Identification
Emergency Overview
--------------------------
DANGER! CORROSIVE. CAUSES BURNS TO ANY AREA OF CONTACT. MAY BE FATAL IF
SWALLOWED. HARMFUL IF INHALED.
J.T. Baker SAF-T-DATA(tm) Ratings (Provided here for your convenience)
-----------------------------------------------------------------------------------------------------------
Health Rating: 2 - Moderate
Flammability Rating: 0 - None
Reactivity Rating: 1 - Slight
Contact Rating: 3 - Severe (Corrosive)
Lab Protective Equip: GOGGLES; LAB COAT
Storage Color Code: White (Corrosive)
-----------------------------------------------------------------------------------------------------------
Potential Health Effects
----------------------------------
Inhalation:
Excessive inhalation of vapors, mists, or fumes may cause bronchial
irritation, coughing, labored breathing, nausea, and pulmonary edema.
Additional effects have included circulatory collapse and confusion,
delirium, coma.
Ingestion:
May cause erosion of the mucous membranes. Symptoms include vomiting,
circulatory collapse, confusion, coma, and death. May cause edema of
pharynx, glottis, and larynx and perforation of the esophagus or stomach.
Effects are less damaging at lower concentrations.
Skin Contact:
Contact may cause severe irritation with blistering and eczema, especially
at higher concentrations.
Eye Contact:
Contact may cause severe irritation and damage, especially at higher
concentration.
Chronic Exposure:
A constant irritant to the eyes and throat.
Aggravation of Pre-existing Conditions:
Persons with impaired respiratory function may be more susceptible to the
effects of the substance.
4. First Aid Measures
Inhalation:
Remove to fresh air. If not breathing, give artificial respiration. If
breathing is difficult, give oxygen. Get medical attention immediately.
Ingestion:
If swallowed, DO NOT INDUCE VOMITING. Give large quantities of water. Never
give anything by mouth to an unconscious person. Get medical attention
immediately.
Skin Contact:
Immediately flush skin with plenty of water for at least 15 minutes while
removing contaminated clothing and shoes. Get medical attention
immediately. Wash clothing before reuse. Thoroughly clean shoes before
reuse.
Eye Contact:
Immediately flush eyes with plenty of water for at least 15 minutes,
lifting lower and upper eyelids occasionally. Get medical attention
immediately.
Note to Physician:
Consider oral administration of sodium thiosulfate solutions if sodium
hypochlorite is ingested. Do not administer neutralizing substances since
the resultant exothermic reaction could further damage tissue.
Endotracheal intubation could be needed if glottic edema compromises the
airway. For individuals with significant inhalation exposure, monitor
arterial blood gases and chest x-ray.
5. Fire Fighting Measures
Fire:
Not considered to be a fire hazard. Substance releases oxygen when heated, which may increase the severity of an existing fire. Containers may rupture from pressure build-up.
Explosion:
This solution is not considered to be an explosion hazard. Anhydrous sodium
hypochlorite is very explosive.
Fire Extinguishing Media:
Use any means suitable for extinguishing surrounding fire. Use water spray
to cool fire-exposed containers, to dilute liquid, and control vapor.
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.
6. Accidental Release Measures
Ventilate area of leak or spill. Wear appropriate personal protective
equipment as specified in Section 8. Isolate hazard area. Keep unnecessary
and unprotected personnel from entering. Contain and recover liquid when
possible. Collect liquid in an appropriate container or absorb with an
inert material (e. g., vermiculite, dry sand, earth), and place in a
chemical waste container. Do not use combustible materials, such as saw
dust. Do not flush to sewer! US Regulations (CERCLA) require reporting
spills and releases to soil, water and air in excess of reportable
quantities. The toll free number for the US Coast Guard National Response
Center is (800) 424-8802.
7. Handling and Storage
Keep in a tightly closed container, stored in a cool, dry, ventilated area.
Protect against physical damage. Isolate from incompatible substances.
Containers of this material may be hazardous when empty since they retain
product residues (vapors, liquid); observe all warnings and precautions
listed for the product.
8. Exposure Controls/Personal Protection
Airborne Exposure Limits:
- AIHA (WEEL) -
Sodium Hypochlorite: 2 mg/m3 (STEL)
- OSHA Permissible Exposure Limit (PEL) -
Sodium Hydroxide: 2 mg/m3 Ceiling
Chlorine (from Sodium Hypochlorite): 0.5 ppm (TWA), 1 ppm (STEL)
- ACGIH Threshold Limit Value (TLV) -
Sodium Hydroxide: 2 mg/m3 Ceiling
Chlorine (from Sodium Hypochlorite): 0.5 ppm (TWA), 1 ppm (STEL), A4
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, a full facepiece respirator with an acid
gas cartridge 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. 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 impervious protective clothing, including boots, gloves, lab coat,
apron or coveralls, as appropriate, to prevent skin contact.
Eye Protection:
Use chemical safety goggles and/or a full face shield where splashing is
possible. Maintain eye wash fountain and quick-drench facilities in work
area.
9. Physical and Chemical Properties
Appearance:
Colorless to yellowish liquid.
Odor:
Chlorine-like odor.
Solubility:
100% in water.
Density:
1.07 - 1.14
pH:
9 - 10 (neutral solution-no excess sodium hydroxide)
% Volatiles by volume @ 21C (70F):
ca. 95
Boiling Point:
40C (104F) Decomposes slightly
Melting Point:
-6C (21F)
Vapor Density (Air=1):
No information found.
Vapor Pressure (mm Hg):
17.5 @ 20C (68F)
Evaporation Rate (BuAc=1):
No information found.
10. Stability and Reactivity
Stability:
Slowly decomposes on contact with air. Rate increases with the
concentration and temperature. Exposure to sunlight accelerates
decomposition. Sodium hypochlorite becomes less toxic with age.
Hazardous Decomposition Products:
Emits toxic fumes of chlorine when heated to decomposition. Sodium oxide at
high temperatures.
Hazardous Polymerization:
Will not occur.
Incompatibilities:
Ammonia (chloramine gas may evolve),amines, ammonium salts, aziridine,
methanol, phenyl acetonitrile, cellulose, ethyleneimine, oxidizable metals,
acids, soaps, and bisulfates.
Conditions to Avoid:
Light, heat, incompatibles.
11. Toxicological Information
No LD50/LC50 information found relating to normal routes of occupational
exposure. Investigated as a tumorigen and mutagen. Irritation data: eye,
rabbit, 10 mg - Moderate
--------\Cancer Lists\------------------------------------------------------
---NTP Carcinogen---
Ingredient Known Anticipated IARC Category
------------------------------------ ----- ----------- -------------
Sodium Hypochlorite (as NaOCl) No No 3
(7681-52-9)
Water (7732-18-5) No No None
Sodium Hydroxide (1310-73-2) No No None
12. Ecological Information
Environmental Fate:
No information found.
Environmental Toxicity:
No information found.
13. Disposal Considerations
Dilute with water and flush to sewer if local ordinances allow, otherwise,
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.
14. Transport Information
Domestic (Land, D.O.T.)
-----------------------
Proper Shipping Name: HYPOCHLORITE SOLUTION
Hazard Class: 8
UN/NA: UN1791
Packing Group: III
Information reported for product/size: 4L
International (Water, I.M.O.)
-----------------------------
Proper Shipping Name: HYPOCHLORITE SOLUTION
Hazard Class: 8
UN/NA: UN1791
Packing Group: III
Information reported for product/size: 4L
International (Air, I.C.A.O.)
-----------------------------
Proper Shipping Name: HYPOCHLORITE SOLUTION
Hazard Class: 8
UN/NA: UN1791
Packing Group: III
Information reported for product/size: 4L
15. Regulatory Information
--------\Chemical Inventory Status - Part 1\---------------------------------
Ingredient TSCA EC Japan Australia
----------------------------------------------- ---- --- ----- ---------
Sodium Hypochlorite (as NaOCl) (7681-52-9) Yes Yes Yes Yes
Water (7732-18-5) Yes Yes Yes Yes
Sodium Hydroxide (1310-73-2) Yes Yes Yes Yes
--------\Chemical Inventory Status - Part 2\---------------------------------
--Canada--
Ingredient Korea DSL NDSL Phil.
----------------------------------------------- ----- --- ---- -----
Sodium Hypochlorite (as NaOCl) (7681-52-9) Yes Yes No Yes
Water (7732-18-5) Yes Yes No Yes
Sodium Hydroxide (1310-73-2) Yes Yes No Yes
--------\Federal, State & International Regulations - Part 1\----------------
-SARA 302- ------SARA 313------
Ingredient RQ TPQ List Chemical Catg.
----------------------------------------- --- ----- ---- --------------
Sodium Hypochlorite (as NaOCl) (7681-52-9) No No No No
Water (7732-18-5) No No No No
Sodium Hydroxide (1310-73-2) No No No No
--------\Federal, State & International Regulations - Part 2\----------------
-RCRA- -TSCA-
Ingredient CERCLA 261.33 8(d)
----------------------------------------- ------ ------ ------
Sodium Hypochlorite (as NaOCl) 100 No No
(7681-52-9)
Water (7732-18-5) No No No
Sodium Hydroxide (1310-73-2) 1000 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 (Mixture / Liquid)
Australian Hazchem Code: 2R
Poison Schedule: S5
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.
16. Other Information
NFPA Ratings:
Health: 3 Flammability: 0 Reactivity: 1
Label Hazard Warning:
DANGER! CORROSIVE. CAUSES BURNS TO ANY AREA OF CONTACT. MAY BE FATAL IF
SWALLOWED. HARMFUL IF INHALED.
Label Precautions:
Do not get in eyes, on skin, or on clothing.
Avoid breathing mist.
Keep container closed.
Use with adequate ventilation.
Wash thoroughly after handling.
Label First Aid:
In case of contact, immediately flush eyes or skin with plenty of water for
at least 15 minutes while removing contaminated clothing and shoes. Wash
clothing before reuse. If inhaled, remove to fresh air. If not breathing,
give artificial respiration. If breathing is difficult, give oxygen. If
swallowed, DO NOT INDUCE VOMITING. Give large quantities of water. Never give
anything by mouth to an unconscious person. In all cases get medical
attention immediately.
Product Use:
Laboratory Reagent.
Revision Information:
MSDS Section(s) changed since last revision of document include: 9.
Disclaimer:
************************************************************************************************
Mallinckrodt Baker, Inc. 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. MALLINCKRODT
BAKER, INC. 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, MALLINCKRODT BAKER, INC.
WILL NOT BE RESPONSIBLE FOR DAMAGES RESULTING FROM USE OF OR RELIANCE UPON THIS
INFORMATION.
************************************************************************************************
Prepared by: Strategic Services Division
Phone Number: (314) 539-1600 (U.S.A.)