MSDS CALCIUM HYPOCHLORITE

MATERIAL SAFETY DATA SHEET

CALCIUM HYPOCHLORITE

1.                  PRODUCT IDENTIFICATION

Synonyms:                   Hypochlorous Acid, Calcium Salt; Losantin; Calcium

                                    Hypochlorite: Chlorinated Lime

CAS No:                       7778-54-3

Molecular Weight:       142.98

Chemical Formula:      Ca(OCl)₂

 

Product Codes:            1378

2.                  COMPOSITION/INFORMATION OF INGREDIENTS

Ingredient                                CAS No                        Percent            Hazardous

Calcium Hypochlorite                 7778-54-3                      65-70%             Yes

3.                  HAZARD IDENTIFICATION

Emergency Overview

DANGER! STRONG OXIDIZER. CONTACT WITH OTHER MATERIALS MAY CAUSE FIRE.  CORROSIVE.  CAUSES BURNS TO ANY AREA OF CONTACT.  HARMFUL IF SWALLOWED OR INHALED.  WATER REACTIVE

Health Rating               :           2 – Moderate

Flammability Rating    :           0 – None

Reactivity Rating         :           3 – Severe (Oxidizer)

Contact Rating             :           2 – Moderate

Lab Protective Equipment:      GOGGLES; LAB COAT; VENT HOOD; PROPER GLOVES

Storage Colour Code   :           Yellow (Reactive)

Potential Health Effects

Inhalation:

Corrosive. Extremely destructive to tissues of the mucous membranes and upper respiratory tract.  Symptoms may include burning sensation, coughing, wheezing, laryngitis, and shortness of breath, headache, nausea and vomiting.  Inhalation may be fatal as a result of spasm inflammation and edema of the larynx and bronchi, chemical pneumonitis and pulmonary edema.

Ingestion:

Corrosive.  Swallowing can cause severe burns of the mouth, throat, and stomach.  Can cause sore throat, vomiting, diarrhea.

Skin Contact:

Corrosive.  Symptoms of redness, pain, and severe burn can occur

Eye Contact:

Corrosive.  Contact can cause blurred vision, redness, pan and severe tissue burns.

Chronic Exposure:

Repeated exposures to calcium hypochlorite may cause bronchitis to develop with cough and/or shortness of breath.

Aggravation of Pre-existing Conditions:

No information found.

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.

Fire:

Not combustible, but substance is a strong oxidizer and its heat of reaction with reducing agents or combustibles may cause ignition.  Thermally unstable; at higher temperatures, may undergo accelerated decomposition with release of heat and oxygen.

5.                  FIRE FIGHTING MEASURES

Explosion:

Sealed containers may rupture when heated.  An explosion can occur if either a carbon tetrachloride or a dry ammonium compound fire extinguisher is used to extinguish a fire involving calcium hypochlorite.

Fire Extinguishing Media:

Use flooding quantities of water as fog or spray.  Use water spray to keep fire-exposed containers cool.  Avoid direct contact with water; reacts with water releasing chlorine gas.  Fight fire from protected location or maximum possible distance.  Do not use dry chemical fire extinguishers containing ammonium compounds.  Do not use carbon tetrachloride fire extinguishers.  Do not allow water runoff to enter sewers or waterways.

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

Remove all sources of ignition.  Keep water away from spilled material.  Ventilate area of leak or spill.  Wear appropriate personal protective equipment as specified in Section 8.

Spills:

Remove all sources of ignition.  Clean up in manner to minimize contamination with organic material.  Do not return material to original container.  Place in a fresh container and isolate outside or in a well-ventilated area.  Do not seal the container.  Flush any residual material with large quantities of water.  In the event of a large spill use the emergency telephone number.

7.                  HANDLING AND STORAGE

Handling:

Avoid inhalation of dust and fumes. Do not take internally. Avoid contact with skin, eyes and clothing. Upon contact with skin or eyes, wash off with water. Remove contaminated clothing and wash before reuse.

Storage:

Keep product tightly sealed in original containers. Store product in a cool, dry, well-ventilated area. Store away from combustible or flammable products. Keep product packaging clean and free of all contamination, including e.g. other pool treatment products, acids, organic materials, nitrogen-containing compounds, dry powder fire extinguishers (containing mono-ammonium phosphate), oxidizers, all corrosive liquids, flammable or combustible materials, etc.

Shelf Life Limitations:

Do not store product where the average daily temperature exceeds 35°C / 95°F. Storage above this temperature may result in rapid decomposition, evolution of chlorine gas and heat sufficient to ignite combustible products. Shelf life (that is, the period of time before the product goes below stated label strength) is determined by storage time and temperatures. Store in cool, dry and well ventilated area. Prolonged storage at elevated temperatures will significantly shorten the shelf life. Storage in a climate controlled storage area or building is recommended in those areas where extremes of high temperature occur.

Incompatible Materials for Storage:

Do not allow product to come in contact with other materials, including e.g. other pool treatment products, acids, organic materials, nitrogen-containing compounds, dry powder fire extinguishers (containing mono-ammonium phosphate), oxidizers, all corrosive liquids, flammable or combustible materials, etc. A chemical reaction with such substances can cause a fire of great intensity.

Do Not Store at Temperatures Above:

Average daily temperature of 35°C / 95°F. Storage above this temperature may result in rapid decomposition, evolution of chlorine gas and heat sufficient to ignite combustible products.

8.                  EXPOSURE CONTROL / PERSONAL PROTECTION

Airborne Exposure Limits:

None established

Ventilation System:

A system of local and/or general exhaust is recommended to keep employee exposures as low as possible.  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):

For conditions of use where exposure to the dust or mist is apparent, a half-face dust/mist respirator may be worn.  For emergencies or instances where the exposure levels are not known, use a full-face 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 the work area.

9.                  PHYSICAL AND CHEMICAL PROPERTIES

Appearance                             :           White or grayish-white granules or chips

Odor                                        :           Chlorine-like odour

Solubility                                 :           Soluble in water; reacts, releasing chlorine gas

Specific Gravity                       :           2.35 @ 20°C

pH                                            :           No information found

% Volatiles by volume             :           @ 21°C (70°F):  0

Boiling Point                            :           No information found

Melting Point                           :           Decomposes above 177°C (350°F), releasing oxygen

Vapor Density (Air+1)               :           6.9

Vapor Pressure (mm Hg           :           Not applicable

Evaporation Rate (BuAc+1)      :           No information found

10.             STABILITY AND REACTIVITY

Stability and Reactivity Summary:

Product is not sensitive to mechanical shock or impact. Product is not sensitive to electrical static discharge. Product will not undergo hazardous polymerization. Product is a Class 5.1 oxidizer which can cause a severe increase in fire intensity. Not pyrophoric. Not an organic peroxide. If subjected to excessive temperatures, the product may undergo rapid decomposition, evolution of chlorine gas, and heat sufficient to ignite combustible substances. If product is exposed to small amounts of water, it can react violently to produce heat and toxic gasses and spatter. Use copius amounts of water for fires involving this product.

Conditions to Avoid:

Do not store next to heat source, in direct sunlight, or elevated storage temperature. Do not store where the daily average temperature exceeds 35°C / 95°F. Prevent ingress of humidity and moisture into container or package. Always close the lid.

Chemical Incompatibility:

This product is chemically reactive with many substances. Including e.g., other pool treatment products, acids, organics, nitrogen-containing compounds, dry powder fire extinguishers (containing mono-ammonium phosphate), oxidizers, corrosive, flammable or combustible materials. Do not allow product to contact any foreign matter, including other water treatment products. Contamination or improper use may cause a fire of great intensity, explosion or the release of toxic gases. If product is exposed to small amounts of water, it can react violently to produce heat and toxic gases and spatter.

Hazardous Decomposition Products:

Chlorine

Decomposition Temperature:

170 – 180 DEG°C - , 338 – 356 DEG°F - ,

11.             TOXICOLOGICAL INFORMATION

Calcium hypochlorite: LD50 oral rat 850 mg/kg.  Investigated as a tumorigen and mutagen.

Cancer Lists                                                     NTP Carcinogen

Ingredient                                                        Known    Anticipated   IARC Category

Calcium Hypochlorite (7778-54-3)                        No                  No                     3

12.             ECOLOGICAL INFORMATION

Environment Fate:

No information found.

Environmental Toxicity:

No information found.

13.             DISPOSAL CONSIDERATION

Whatever cannot be saved for recovery or recycling should be handled as hazardous waste and sent to an approved waste 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:                           CALCIUM HYPOCHLORITE, DRY

Hazard Class:                                        5.1

UN/NA:                                                 1748

Packing Group:                                      II

International (Water, I.M.O)

Proper Shipping Name:                           CALCIUM HYPOCHLORITE, DRY

Hazard Class                                         5.1

UN/NA:                                                 UN1748

Packing Group:                                      II

International (Air, I.C.A.O)

Proper Shipping Name:                           CALCIUM HYPOCHLORITE, DRY

Hazard Class                                         5.1

UN/NA:                                                 UN1748

Packing Group:                                      II

15.             REGULATORY INFORMATION

Chemical Inventory Status

Ingredient                                            TSCA               C          Japan              Australia

Calcium Hypochlorite                             Yes                  Yes      Yes                  Yes

Canada                                                Korea               DSL      NDSL               Phil

                                                            Yes                  Yes      No                    Yes

Federal, State & International Regulations

RQ       TPQ     List       Chem. Catg.     CERCLA           261.33  TSCA 8(d)

No        No        No        No                    10                     No        No

Chemical Weapons Convention:  No    TSCA 12(b) : No    CDTA:  No

SARA 311/312: Acute:  Yes    Chronic: Yes    Fire:  Yes   Pressure:  No

Reactivity:  Yes (Pure/Solid)

16.             OTHER INFORMATION

NFPA Ratings: Health: 3  Flammability: 0  Reactivity: 1   Other: Oxidizer

Label Hazard Warning:

DANGER! STRONG OXIDIZER. CONTACT WITH OTHER MATERIAL MAY CAUSE FIRE.  CORROSIVE.  CAUSES BURNS TO ANY AREA OF CONTACT.  HARMFUL IF SWALLOWED OR INHALED.  WATER REACTIVE.

Label Precautions:

Keep from contact with clothing and other combustible materials.

Store in a tightly closed container.

Remove and wash contaminated clothing promptly.

Do not store near combustible materials.

Do not get in eyes, on skin, or on clothing.

Do not breathe dust or vapor.

Keep container closed.

Use only with adequate ventilation.

Wash thoroughly after handling.

Do not contact with water.

Label Fire Aid:

If swallowed, DO NOT INDUCE VOMITING. Give large quantities of water.  Never give anything by mouth to an unconscious person.  If inhaled, remove to fresh air.  If not breathing, give artificial respiration.  If breathing is difficult, give oxygen.  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.  In all cases get medical attention immediately.

Product Use:

Laboratory Reagent

Revision Information:

Date of Issue:               June 2009

Revision No:                07

Compiled By:               A Grobbelaar / P Coetzer

 

DISCLAIMER

Arch 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.  ARCH 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, ARCH CHEMICALS WILL NOT BE RESPONSIBLE FOR DAMAGES RESULTING FROM USE OR RELIANCE UPON THIS INFORMATION.