MATERIAL SAFETY DATA SHEET SODIUM HYPOCHLORITE SOLUTION 5%
PRODUCT CODE NUMBER(S): 7880-6
PRODUCT IDENTIFICATION Reactivity: Avoid exposure to heat and light, all incompati-
ble materials, generation of mist.
Chemical Name and Synonyms: Sodium hypochlorite so- Hazardous Decomposition Products: Cl2, NaOH, Na2O
lution 5%
Chemical Family: Hypochlorous acid salt iin aqueous solu-
FIRE AND EXPLOSION DATA
tion
Flammability: Not combustible. Solution does not support
Chemical Formula: NaClO.xH2O in H2O
combustion. Closed containers can explode in fire situation.
Product Use: Laboratory reagent
Extinguishing Media: Use an extinguisher appropriate to
Manufacturer鈥檚 Name and Address:
the surrounding material that is burning. Do not use dry
Caledon Laboratories Ltd. chemcial containing ammonium compounds; an explosive
40 Armstrong Avenue product can be formed. Use water as spray or fog to cool
Georgetown, Ontario L7G 4R9 fire-exposed containers, knock down smoke or vapours,
flush material away from fire. Fight fire from upwind, from a
Telephone No: (905) 877-0101
safe distance. FIrefighters must wear specialized protective
Fax No: (905) 877-6666
clothing (full body encapsulating chemical resistant suit) and
Emergency Telephone No: CANUTEC (613) 996-6666 postive-pressure full face-piece self-contained breathing ap-
paratus. Closed containers may rupture violently during fire;
HAZARDOUS INGREDIENTS OF MATERIALS withdraw immediately in case of rising sound from vent or
discoloration of container.
Ingredients % TLV Units CAS No. Flash Point (Method Used): Not applicable
Sodium hypochlorite 5-10 1 ppm 7681-52-9 Autoignition Temperature: Not applicable
( as Cl2) Upper Flammable Limit (% by volume): Not applicable
Lower Flammable Limit (% by volume): Not applicable
PHYSICAL DATA
Hazardous Combustion Products: Cl2, oxygen, sodium
Physical State: Liquid chlorate.
Sensitivity to Impact: None
Odour and Appearance: Pale yellow liquid; chlorine-like
odour Sensitivity to Static discharge: None
Odour Threshold (ppm): 1 ppm (as Cl2)
TOXICOLOGICAL PROPERTIES AND HEALTH DATA
Vapour Pressure (mm Hg): Does not form vapour
Vapour Density (Air = 1): Not applicable
Toxicological Data:
Evaporation Rate: Not applicable
LD50: (oral, rat) 8,910 mg/kg; (dermal, rabbit) >10,000
Boiling Point (degrees C): Decomposes above 40掳C
mg/kg
Freezing Point (degrees C): -6掳C
LC50: (rat) >10,500 mg/m3/1h (unspecified strength)
pH: ~11
Specific Gravity: ~1.1 (6%) Effects of Acute Exposure to Product:
Coefficient of Water/Oil distribution: LogP(oct)= -3.42
Inhaled: Does not readily formvapour, but decomposes
(est)
slowly, releasng corrosive chlorine gas. Chlorine can cause
severe irritation of the nose, throat and lungs, and even
SHIPPING DESCRIPTION death, depending on the airborne concentration. Amount of
chlorine released from solutions <5.25) under normal condi-
UN: Not regulated
tions of use is not significant. However, more concentrated
T.D.G. Class: Not regulated
solutions, if the pH is lowered, if the solution is heated or
Pkg. Group: Not regulated mixed with acids, release higher chlorine concentrations.
Mists formed from solutions can probably cause mild to se-
REACTIVITY DATA vere irritation of the nose and throat, depending mainly upon
the airborne concentration and the strength of the solution.
Chemical Stability: Decomposes slowly, releasing chlorine There is no human or animal information available about
gas. Process is speeded up by exposure to heat and light. short-term inhalation exposure to mists from sodium
Incompatibility with other substances: Forms toxic, reac- hypochlorite solutions. Mist can probably irritate nose and
tive chloramines with nitrogen compounds (ammonia, urea, throat. Severe overexposure to vapours, mist or fumes may
amines, isocyanurates). Forms explosive nitrogen trichloride cause bronchial irritation, coughing, nausea, and pulmonary
with ammonium salts in the presence of acid. Contact with edema, with laboured breathing, cyanosis, foamy sputum.
acid, liberates highly toxic chlorine gas. Can form explosive In contact with skin: Corrosive. May cause pain and se-
methyl hypochlorite with methanol. Some metals (copper, vere burns to the skin. Severity of injury depends on the
nickel, zinc, cobalt) speed up decomposition of NaOCl. So- concentration and duration of exposure. Repeated exposure
lutions are corrosive to many metals.
SODIUM HYPOCHLORITE SOLUTION 5%
MSDS
CODE: 7880-6
to dilute solutions may cause irritation, redness, pain and ventilation. Keep containers closed when not in use and when
drying and cracking of the skin. empty. Empty containers may contain hazardous residues; treat
with caution. Wash thoroughly after working with this chemical.
In contact with eyes: Corrosive. Severity of injury depends
on the concentration and duration of exposure. Can cause Storage Requirements: Store in suitable, labelled containers,
severe irritation, swelling, pain, burns to eye tissue, possible in a cool, dry, well-ventilated area, out of direct sunlight. Use
permanent damage to vision. corrosion-resistant materials, lighting and ventilation in storage
area. Store away from incompatible materials. Keep containers
Ingested: Ingestion may cause erosion of the mucous
tightly closed when not in use and when empty. Protect from
membranes. May cause edema of the pharynx, glottis and
damage, and inspect frequently for signs of leaking. Solutions
larynx and perforation of esophagus or stomach. Ingestion
stronger than 10% available chlorine may slowly give off oxy-
or inhalation of large amounts may lead to vomiting, circula-
gen during storage, especially at temperatures >18 掳C. Vent
tory collapse, confusion, delirium, coma and death. For
caps may be necessary to prevent build-up of pressure that
sodium hypochlorite solutions with 3-6% available chlorine,
could cause containers to rupture.
a lethal dose for humans of 200 mL has been reported. As-
piration may occur during ingestion or vomiting, and can
FIRST AID MEASURES
cause serious lung damage, pulmonary edema, and death.
Specific Measures:
Effects of Chronic Exposure to Product:
Eyes: Immediately flush eyes with gently running water for at
Prolonged or repeated contact with solutions containing 4 to
least thirty (30) minutes, holding eyelids open during flushing.
6% NaOCl can cause allergic skin reaction. Sensitized peo-
Avoid flushing contaminated water into unaffected eye. Wear
ple can react to very dilute (0.04to 0.06%) solutions.
protectiv e gloves to avoid contact during first aid procedures.
Carcinogenicity: No human information available. Not car- Get medical attention immediately.
cinogenic in animal testing by ingestion or skin contact.
Skin: Remove contaminated clothing under running water, in-
Teratogenicity: No human or animal information available cluding watches, rings, belts, and shoes. Wear protectiv e
Reproductive Effects: No human information available. gloves to avoid contact. Flush affected areas with running water
Some effects demonstrated in testing with mice. for at least twenty (20) minutes. Get medical attention. Decon-
taminate clothing completely before reuse, or discard.
Mutagenicity: No human information. Mutagenic in some
short-tern testing, but not in testing on live animals. Inhalation: Immediately remove victim to fresh air (caution
must be used by rescuers to avoid exposure; use 鈥渂uddy鈥? sys-
Synergistic Products: None known
tem and appropriate protective equipment). Give oxygen and
PREVENTIVE MEASURES get medical attention for any breathing difficulty. If breathing
has stopped, begin artificial respiration and get medical atten-
Engineering Controls: Corrosion-resistant exhaust venti- tion immediately. If severe exposure is suspected
lation, separate from other ventilation systems. hospitalization and observation for 72 hours for delayed onset
Respiratory Protection: NIOSH/MSHA approved mist of pulmonary edema is advised.
mask, mist half-face respirator or supplied-air respirator. Ingestion: If victim is alert and not convulsing, give 1 to 2
High or unknown concentrations, as in fire or spill condi- glasses of water to drink to dilute material. DO NOT induce
tions: positive-pressure full face-piece self-contained vomiting. If spontaneous vomiting occurs, have victim lean for-
breathing apparatus or positive-pressure full face-piece sup- ward with head down to avoid breathing in of vomitus, rinse
plied-air respirator with auxiliary positive-pressure mouth and administer more water. Obtain medical attention im-
self-contained breathing apparatus mediately.
Eye Protection: Chemical safety goggles and/or face
REFERENCES USED
shield.
Skin Protection: Natural or butyl rubber, neoprene, nitrile
CCINFO disc: MSDS鈥檚, March 2007
rubber, polyethylene, PVC, Viton鈩?, Saranex鈩?, Re-
Budavari: The Merck Index, 12th ed., 1997
sponder鈩? gloves (solution <30%). Other impervious
protective clothing, sleeves, apron, coverall, boots, sufficient Sax, Lewis: Hawley鈥檚 Condensed Chemical Dictionary, 11th ed.,
to prevent contact. 1987
Other Personal Protective Equipment: Safety shower Suppliers鈥? Material Safety Data Sheets
and eye-wash fountain in work area.
Leak and Spill Procedure: Restrict access to area of spill. ADDITIONAL INFORMATION
Ventilate area. Cleanup personnel must be thoroughly
Date Issued: November 25, 1991
trained in the hazards of this chemical and its safe use, and
must wear protective equipment and clothing sufficient to Revision: March 2007
prevent inhalation of mist or fumes, and contact with skin
MSDS: 7880-6
and eyes. Prevent from entering sewers and waterways.
Proposed WHMIIS Designation: E
Contain spill with inert absorbent material. Collect in suit-
able, labelled, covered containers for disposal.
Contaminated absorbent may pose the same hazards as the Prepared by: Caledon Laboratories Ltd. (905) 877-0101
chemical; treat with caution. Flush area of spill with large Caledon Laboratories Ltd. believes the information contained
amounts of running water. herein is reliable and accurate. Caledon makes no warranty with
Waste Disposal: Follow all federal, provincial and local respect thereto and expressly disclaims all liability for reliance
regulations for disposal. thereon. Such information is solely for your consideration, investi-
Handling Procedures and Equipment: CORROSIVE. gation, and verification.
Workers using this chemical must be thoroughly trained in
its hazards and its safe use, and must wear appropriate pro-
tective equipment and clothing. Avoid generating mists.
Avoid all contact and inhalation. Use the smallest possible
amount for the purpose, in designated areas with adequate
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