CALCIUM HYDROXIDE
1. Product Identification
Synonyms: Calcium hydrate; slaked lime
CAS No.:
1305-62-0
Molecular Weight: 74.09
Chemical Formula:
Ca(OH)2
Product Codes: C3500A
2. Composition/Information on Ingredients
Ingredient CAS No Percent Hazardous
--------------------------------------- ------------ ------------ ---------
Calcium Hydroxide 1305-62-0 99 - 100% Yes
3. Hazards Identification
Emergency Overview
--------------------------
DANGER! HARMFUL IF SWALLOWED OR INHALED. CAUSES BURNS TO SKIN AND EYES.
CAUSES SEVERE IRRITATION TO RESPIRATORY TRACT.
-----------------------------------------------------------------------------------------------------------
Health Rating: 1 - Slight
Flammability Rating: 0 - None
Reactivity
Rating: 1 - Slight
Contact Rating: 2 - Moderate
Lab Protective Equip:
GOGGLES; LAB COAT
Storage Color Code: Orange (General Storage)
-----------------------------------------------------------------------------------------------------------
Potential Health Effects
----------------------------------
Inhalation:
Causes irritation to the respiratory tract.
Symptoms may include coughing, shortness of breath. Can cause chemical
bronchitis.
Ingestion:
Gastric irritant. Ingestion may be
followed by severe pain, vomiting, diarrhea, and collapse. If death does not
occur in 24 hours, esophageal perforation may occur, as evidenced by fall in
blood pressure and severe pain. A narrowing of the esophagus may occur weeks,
months, or years after ingestion, making swallowing difficult.
Skin
Contact:
Corrosive. May cause severe burns and blistering, depending
on duration of contact.
Eye Contact:
Corrosive. May produce
severe irritation and pain. May induce ulcerations of the corneal epithelium.
Can cause blindness.
Chronic Exposure:
Prolonged or repeated
skin contact may produce severe irritation or dermatitis.
Aggravation
of Pre-existing Conditions:
Persons with pre-existing skin problems or
impaired respiratory function may be more susceptible to the effects of this
substance.
4. First Aid Measures
Inhalation:
Remove to fresh air. If not breathing, give
artificial respiration. If breathing is difficult, give oxygen. Call a
physician immediately.
Ingestion:
DO NOT INDUCE VOMITING. Give
large quantities of water. Never give anything by mouth to an unconscious
person. Call a physician immediately.
Skin Contact:
In case of
contact, wipe off excess material from skin then immediately flush skin with
plenty of water for at least 15 minutes. Remove contaminated clothing and
shoes. Wash clothing before reuse. Call a physician immediately.
Eye
Contact:
Immediately flush eyes with gentle but large stream of water
for at least 15 minutes, lifting lower and upper eyelids occasionally. Call a
physician immediately.
5. Fire Fighting Measures
Fire:
Not considered to be a fire hazard.
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.
6. Accidental Release Measures
Ventilate area of leak or spill. Keep unnecessary and unprotected
people away from area of spill. Wear appropriate personal protective equipment
as specified in Section 8. Spills: Pick up and place in a suitable container
for reclamation or disposal, using a method that does not generate dust.
Do not flush caustic residues to the sewer. Residues from spills can be
diluted with water, neutralized with dilute acid such as acetic, hydrochloric
or sulfuric. Absorb neutralized caustic residue on clay, vermiculite or other
inert substance and package in a suitable container for
disposal.
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 (dust, solids); observe all warnings and precautions
listed for the product.
8. Exposure Controls/Personal Protection
Airborne Exposure Limits:
-OSHA Permissible Exposure
Limit (PEL):
15 mg/m3 (total dust), 5 mg/m3 (respirable fraction)
-ACGIH Threshold Limit Value (TLV):
5 mg/m3
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 full facepiece
particulate respirator (NIOSH type N100 filters) may be worn for 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
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 full face shield where dusting or
splashing of solutions is possible. Maintain eye wash fountain and
quick-drench facilities in work area.
9. Physical and Chemical Properties
Appearance:
White crystals or powder.
Odor:
Odorless.
Solubility:
0.185 g/100 cc water @ 0C
Specific Gravity:
2.24
pH:
12.4 (saturated
solution)
% Volatiles by volume @ 21C (70F):
0
Boiling
Point:
Decomposes.
Melting Point:
580C (1076F)
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:
Stable under ordinary conditions of use and
storage. Readily absorbs carbon dioxide from air to form calcium carbonate.
Hazardous Decomposition Products:
Caustic fumes of calcium
oxide form when heated to decomposition (580C; 1076F).
Hazardous
Polymerization:
Will not occur.
Incompatibilities:
Violent reactions with maleic anhydride, nitroethane, nitromethane,
nitroparaffins, nitropropane, phosphorus. As a strongly alkaline material, it
is incompatible with acids.
Conditions to Avoid:
Air, dusting,
and incompatibles.
11. Toxicological Information
Oral Rat LD50: 7340 mg/kg; eye rabbit, standard Draize, 10 mg,
severe; investigated as a mutagen
--------\Cancer Lists\------------------------------------------------------
---NTP Carcinogen---
Ingredient Known Anticipated IARC Category
------------------------------------ ----- ----------- -------------
Calcium Hydroxide (1305-62-0) No No None
12. Ecological Information
Environmental Fate:
This material is not expected to
significantly bioaccumulate.
Environmental Toxicity:
No
information found.
13. Disposal Considerations
Whatever cannot be saved for recovery or recycling should be
managed in an appropriate and approved waste facility. Although not a listed
RCRA hazardous waste, this material may exhibit one or more characteristics of
a hazardous waste and require appropriate analysis to determine specific
disposal requirements. 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
Not regulated.
15. Regulatory Information
--------\Chemical Inventory Status - Part 1\---------------------------------
Ingredient TSCA EC Japan Australia
----------------------------------------------- ---- --- ----- ---------
Calcium Hydroxide (1305-62-0) Yes Yes Yes Yes
--------\Chemical Inventory Status - Part 2\---------------------------------
--Canada--
Ingredient Korea DSL NDSL Phil.
----------------------------------------------- ----- --- ---- -----
Calcium Hydroxide (1305-62-0) Yes Yes No Yes
--------\Federal, State & International Regulations - Part 1\----------------
-SARA 302- ------SARA 313------
Ingredient RQ TPQ List Chemical Catg.
----------------------------------------- --- ----- ---- --------------
Calcium Hydroxide (1305-62-0) No No No No
--------\Federal, State & International Regulations - Part 2\----------------
-RCRA- -TSCA-
Ingredient CERCLA 261.33 8(d)
----------------------------------------- ------ ------ ------
Calcium Hydroxide (1305-62-0) No No No
Chemical Weapons Convention: No TSCA 12(b): No CDTA: No
SARA 311/312: Acute: Yes Chronic: Yes 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.
16. Other Information
NFPA Ratings: Health: 3 Flammability: 0
Reactivity: 0
Label Hazard Warning:
DANGER! HARMFUL IF
SWALLOWED OR INHALED. CAUSES BURNS TO SKIN AND EYES. CAUSES SEVERE IRRITATION
TO RESPIRATORY TRACT.
Label Precautions:
Do not get in eyes, on
skin, or on clothing.
Wash thoroughly after handling.
Do not breathe
dust.
Keep container closed.
Use only with adequate ventilation.
Label First Aid:
In case of contact, wipe off excess material
from skin then immediately flush eyes or skin with plenty of water for at
least 15 minutes. Remove 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 call a physician immediately.
Product Use:
Laboratory Reagent.
Revision
Information:
Oct. 2003.
Disclaimer:
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QUANTIKA 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. QUANTIKA 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, QUANTIKA WILL NOT BE RESPONSIBLE FOR DAMAGES
RESULTING FROM USE OF OR RELIANCE UPON THIS
INFORMATION.
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