ISO9001:2000 Certified
Material Safety Data Sheet
Chromic acid, 10%
Section 1 - Chemical Product and Company Identification
MSDS Name:
Chromic acid, 10%
Catalog Numbers:
Q00131
Synonyms:
Chromium trioxide solution, 10%
Company Identification:
Qorpak
1195 Washington Pike
Bridgeville, PA 15017
Company Phone Number:
(412) 257-3100
Emergency Phone Number:
(800) 424-9300
CHEMTREC Phone Number:
(800) 424-9300
Section 2 - Composition, Information on Ingredients
Percent
CAS# Chemical Name:
7732-18-5 Water balance
1333-82-0 Chromium trioxide (cro3) 10
Section 3 - Hazards Identification
EMERGENCY OVERVIEW
Appearance: Clear orange
Warning! Causes severe respiratory tract burns. Causes severe eye burns. Causes digestive
tract burns. Causes skin burns.
Target Organs: None known.
Potential Health Effects
Eye:
Contact may cause ulceration of the conjunctiva and cornea. May cause blindness. Causes severe eye irritation and
possible burns.
Skin:
Causes severe skin irritation and possible burns.
Material Safety Data Sheet
Chromic acid, 10%
Ingestion:
May cause severe digestive tract irritation with abdominal pain, nausea, vomiting and diarrhea.
Inhalation:
Causes severe respiratory tract irritation. Symptoms include headache, cough, fluid in the lungs, bronchitis, chest
pains, emphysema, liver and kidney damage.
Chronic:
Chronic inhalation may cause nasal septum ulceration and perforation. Repeated exposure may cause sensitization
dermatitis. Discoloration of teeth. Potential carcinogenic effects.
Section 4 - First Aid Measures
Eyes:
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower lids until no evidence
of chemical remains. Get medical aid at once. Cover burns with loose sterile non-medicated bandages.
Skin:
Get medical aid. Immediately flush skin with plenty of soap and water for at least 15 minutes while removing
contaminated clothing and shoes. Remove contaminated clothing and shoes. Cover burns with a dry sterile bandage
(secure, not tight).
Ingestion:
Get medical aid at once. Give oxygen if respiration is depressed. Do not use gastric lavage or induce vomiting.
Inhalation:
Give artificial respiration if necessary. Get medical aid. Keep victim warm, at rest. Move victim to fresh air. Maintain
airway and blood pressure.
Notes to Physician:
Treat symptomatically and supportively.
Section 5 - Fire Fighting Measures
General Information:
Negligible fire and explosion hazard when exposed to heat or flame. Move container if possible, avoid breathing
vapors or dust. Moderate fire and explosion hazard when in contact with metals (explosive hydrogen gas is formed) or
combustible organic or readily oxidizable materials. Avoid breathing toxic and corrosive vapors - keep upwind. When
toxic chromium trioxide is formed, oxygen is also released increasing fire hazard.
Extinguishing Media:
For small fires, use dry chemical, carbon dioxide, water spray or alcohol-resistant foam.
Autoignition Temperature:
No information found.
Flash Point:
No information found.
NFPA Rating:
CAS# 7732-18-5: Not published.
CAS# 1333-82-0: Not published.
Explosion Limits:
Lower: Upper:
Material Safety Data Sheet
Chromic acid, 10%
Section 6 - Accidental Release Measures
General Information:
Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks:
Absorb spills with absorbent (vermiculite, sand, fuller's earth) and place in plastic bags for later disposal. May be
neutralized with slaked lime, limestone, or sodium bicarbonate to a pH 7. Label container, indicate material contains
chromium. Keep out of sewers and drains where harmful chemical reactions could occur or chromium may persist in
the environment.
Section 7 - Handling and Storage
Handling:
Wash thoroughly after handling. Avoid breathing dust, vapor, mist, or gas.
Storage:
Store in labeled non-reactive containers (glass, plastic) protected from heat and incompatible substances. Protect from
heat and incompatibles. Store as a corrosive acid.
Section 8 - Exposure Controls, Personal Protection
Engineering Controls:
Provide local exhaust or general dilution ventilation.
Exposure Limits
Chemical Name: ACGIH NIOSH OSHA
None of the components None of the components
None of the components
Water
are on this list. are on this list.
are on this list.
as CrO3: 0.001 mg/m3 None of the components
None of the components
Chromium trioxide (cro3)
TWA; NIOSH Potential are on this list.
are on this list.
Occupational Carcinogen
- see Appendix
OSHA Vacated PELs
Personal Protective Equipment
Eyes:
Do not wear contact lenses when working with chemicals. An eye wash fountain should be available in the immediate
work area. Wear splash-proof safety goggles.
Skin:
Wear acid protective clothing and gloves.
Clothing:
Wear acid protective clothing and gloves.
Respirators:
At 5mg/M3 Cr and 50mg/M3 H2S04 - use supplied air respirator with full facepiece (SAF) or self contained breathing
apparatus with full facepiece (SCBA/FF). At 20mg/M3 Cr and 100mg/M3 H2S04 - use SAF in pressure
demand (PD) or continuous flow (CF) mode. Escape - SCBA.
Material Safety Data Sheet
Chromic acid, 10%
Section 9 - Physical and Chemical Properties
Physical State: Clear liquid
Color: Clear orange
Odor: Odorless
pH: Acidic
Vapor Pressure: 14mm Hg @20掳C
Vapor Density: > air
Evaporation Rate: < ether
Viscosity: No information found.
Boiling Point: 212掳F ( 100.00掳C)
Freezing/Melting Point: 32掳F ( 0.00掳C)
Decomposition Temperature: No information found.
Solubility in water: Soluble.
Specific Gravity/Density: 1.0
Molecular Formula: No information found.
Molecular Weight No information found.
Section 10 - Stability and Reactivity
Chemical Stability:
Stable under normal temperatures and pressures.
Conditions to Avoid:
Incompatible materials, heat.
Incompatibilities with Other Materials
Metals as powders (e.g. hafnium, raney nickel), carbides, chlorates, fulminates, picrates, permanganates, alcohols,
acetic anhydride, fuels, nitric acid, perchloric acid, pyridine.
Hazardous Decomposition Products
Possible trivalent chromium formation with liberated oxygen..
Hazardous Polymerization
Has not been reported
Section 11 - Toxicological Information
RTECS:
CAS# 7732-18-5: ZC0110000.
CAS# 1333-82-0: GB6650000.
LD50/LC50:
CAS# 7732-18-5:
Oral, rat: LD50 = >90 mL/kg.
CAS# 1333-82-0:
Oral, mouse: LD50 = 127 mg/kg
Oral, rat: LD50 = 80 mg/kg.
Material Safety Data Sheet
Chromic acid, 10%
Carcinogenicity:
CAS# 7732-18-5: Not listed as a carcinogen by ACGIH, IARC, NIOSH, NTP, OSHA, or CA Prop 65.
CAS# 1333-82-0
ACGIH: Not listed.
California: Not listed.
NIOSH: occupational carcinogen
NTP: Known carcinogen
OSHA: Select carcinogen
IARC: Not listed.
Epidemiology:
severe eye, mucous membrane and skin irritant
Teratogenicity:
Reproductive:
Mutagenicity:
Neurotoxicity:
Section 12 - Ecological Information
No information found.
Section 13 - Disposal Considerations
Dispose of in accordance with Federal, State, and local regulations.
Section 14 - Transport Information
US DOT
Shipping Name: Chromic acid solution
Hazard Class: 8
UN Number: UN1755
Packing Group: PG II
Section 15 - Regulatory Information
US Federal
TSCA
CAS# 7732-18-5 is listed on the TSCA Inventory.
CAS# 1333-82-0 is listed on the TSCA Inventory.
SARA Reportable Quantities (RQ)
None of the components are on this list.
CERCLA/SARA Section 313
None of the components are on this list.
Material Safety Data Sheet
Chromic acid, 10%
OSHA - Highly Hazardous
None of the components are on this list.
US State
State Right to Know
Chromium trioxide (cro3) can be found on the following state Right-to-Know lists: New Jersey, Florida, Pennsylvania,
Massachusetts.
California Regulations
European/International Regulations
Canadian DSL/NDSL
CAS# 7732-18-5 is listed on Canada's DSL List.
CAS# 1333-82-0 is listed on Canada's DSL List.
Canada Ingredient Disclosure List
CAS# 7732-18-5 is not listed on Canada's Ingredient Disclosure List.
CAS# 1333-82-0 is listed on Canada's Ingredient Disclosure List.
Section 16 - Other Information
MSDS Creation Date: October 21, 1997
Revision Date: April 27, 2007
Information in this MSDS is from available published sources and is believed to be accurate. No warranty,
express or implied, is made and Qorpak assumes no liability resulting from the use of this MSDS. The user
must determine suitability of this information for his application.
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