**** SECTION 2 - COMPOSITION, INFORMATION ON INGREDIENTS ****
+----------------+--------------------------------------+----------+-----------+
| CAS# | Chemical Name | % | EINECS# |
|----------------|--------------------------------------|----------|-----------|
|----------------|--------------------------------------|----------|-----------|
| 7789-12-0 |Chromic acid, disodium salt, dihydrate| 100 | unlisted |
|----------------|--------------------------------------|----------|-----------|
+----------------+--------------------------------------+----------+-----------+
Text for R-phrases: see Section 16
Hazard Symbols: T+ O N
Risk Phrases: 21 25 26 37/38 41 43 46 8 49 50/53
**** SECTION 3 - HAZARDS IDENTIFICATION ****
EMERGENCY OVERVIEW
Harmful in contact with skin. Toxic if swallowed. Very toxic by
inhalation. Irritating to respiratory system and skin. Risk of
serious damage to eyes. May cause sensitization by skin contact. May
cause heritable genetic damage. Contact with combustible material
may cause fire. May cause cancer by inhalation. Very toxic to
aquatic organisms, may cause long-term adverse effects in the
aquatic environment.
Potential Health Effects
Eye:
Contact with eyes may cause severe irritation, and possible eye
burns.
Skin:
Causes skin irritation. Harmful if absorbed through the skin. May
cause skin sensitization, an allergic reaction, which becomes
evident upon re-exposure to this material. Chrome ulcers,
penetrating lesions of the skin, occur chiefly on the hand and
forearm where there has been a break in the epidermis.
Ingestion:
Harmful if swallowed. Causes gastrointestinal tract burns. May cause
liver and kidney damage.
Inhalation:
May be fatal if inhaled. Causes respiratory tract irritation. May
cause ulceration and perforation of the nasal septum if inhaled in
excessive quantities.
Chronic:
Prolonged or repeated skin contact may cause dermatitis. Prolonged
or repeated exposure may lead to asthma and perforation of the nasal
septum. May cause cancer in humans.
**** SECTION 4 - FIRST AID MEASURES ****
Eyes:
In case of contact, immediately flush eyes with plenty of water for
at least 15 minutes. Get medical aid immediately.
Skin:
In case of contact, immediately flush skin with plenty of water for
at least 15 minutes while removing contaminated clothing and shoes.
Get medical aid immediately. Wash clothing before reuse.
Ingestion:
If swallowed, do NOT induce vomiting. Get medical aid immediately.
If victim is fully conscious, give a cupful of water. Never give
anything by mouth to an unconscious person.
Inhalation:
POISON material. If inhaled, get medical aid immediately. Remove
victim to fresh air. If not breathing, give artificial respiration.
If breathing is difficult, give oxygen.
Notes to Physician:
**** SECTION 5 - FIRE FIGHTING MEASURES ****
General Information:
As in any fire, wear a self-contained breathing apparatus in
pressure-demand, MSHA/NIOSH (approved or equivalent), and full
protective gear. Strong oxidizer. Contact with other material may
cause fire. Substance is noncombustible.
Extinguishing Media:
Use extinguishing media most appropriate for the surrounding fire.
**** SECTION 6 - ACCIDENTAL RELEASE MEASURES ****
General Information: Use proper personal protective equipment as indicated
in Section 8.
Spills/Leaks:
Vacuum or sweep up material and place into a suitable disposal
container. Do not flush into a sewer. Clean up spills immediately,
observing precautions in the Protective Equipment section. Avoid
generating dusty conditions. Isolate area and deny entry. Provide
ventilation. Keep combustibles (wood, paper, oil, etc.,) away from
spilled material.
**** SECTION 7 - HANDLING and STORAGE ****
Handling:
Wash thoroughly after handling. Remove contaminated clothing and
wash before reuse. Minimize dust generation and accumulation. Do not
get in eyes, on skin, or on clothing. Avoid contact with clothing
and other combustible materials. Do not breathe dust. Use only with
adequate ventilation or respiratory protection.
Storage:
Do not store near combustible materials. Store in a cool, dry,
well-ventilated area away from incompatible substances. Keep away
from reducing agents. Avoid storage on wood floors.
**** SECTION 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION ****
Engineering Controls:
Facilities storing or utilizing this material should be equipped
with an eyewash facility and a safety shower. Use adequate general or
local exhaust ventilation to keep airborne concentrations below the
permissible exposure limits.
Exposure Limits
CAS# 7789-12-0:
United Kingdom, WEL - TWA: (listed as chromium (vi) compounds): 0
mg/m3 TWA (as Cr)
United Kingdom, WEL - STEL: (listed as chromium (vi) compounds):
mg/m3 STEL (as Cr)
United States OSHA: 0.1 mg/m3 Ceiling (listed under Chromates).
Belgium - TWA: (listed as chromium (vi) compounds- water soluble)
0.05 mg/m3 VLE (as Cr)
France - VME: (listed as chromium (vi) compounds): 0.05 mg/m3 VME
Cr)
Germany: (listed as chromium (vi) compounds): 0.05 mg/m3 VME (as
Japan: (listed as chromium (vi) compounds): 0.05 mg/m3 OEL (as Cr
0.01 mg/m3 OEL (certain compounds, as Cr)
Malaysia: (listed as chromium (vi) compounds- water soluble): 0.0
mg/m3 TWA (as Cr)
Netherlands: (listed as chromium (vi) compounds- water soluble):
mg/m3 STEL
Netherlands: (listed as chromium (vi) compounds- water soluble):
0.025 mg/m3 MAC
Spain: 0.05 mg/m3 VLA-ED (as Cr)
CAS# 10588-01-9:
United Kingdom, WEL - TWA: (listed as chromium (vi) compounds): 0
mg/m3 TWA (as Cr)
United Kingdom, WEL - STEL: (listed as chromium (vi) compounds):
mg/m3 STEL (as Cr)
United States OSHA: 0.1 mg/m3 Ceiling (listed under Chromates).
Belgium - TWA: (listed as chromium (vi) compounds- water soluble)
0.05 mg/m3 VLE (as Cr)
France - VME: (listed as chromium (vi) compounds): 0.05 mg/m3 VME
Cr)
Germany: (listed as chromium (vi) compounds): 0.05 mg/m3 VME (as
Japan: (listed as chromium (vi) compounds): 0.05 mg/m3 OEL (as Cr
0.01 mg/m3 OEL (certain compounds, as Cr)
Malaysia: (listed as chromium (vi) compounds- water soluble): 0.0
mg/m3 TWA (as Cr)
Netherlands: (listed as chromium (vi) compounds- water soluble):
mg/m3 STEL
Netherlands: (listed as chromium (vi) compounds- water soluble):
0.025 mg/m3 MAC
Spain: 0.05 mg/m3 VLA-ED (as Cr)
Personal Protective Equipment
Eyes:
Wear appropriate protective eyeglasses or chemical
safety goggles as described by OSHA's eye and face
protection regulations in 29 CFR 1910.133 or European
Standard EN166.
Skin:
Wear appropriate gloves to prevent skin exposure.
Clothing:
Wear a chemical apron. Wear appropriate clothing to
prevent skin exposure.
Respirators:
A respiratory protection program that meets OSHA's 29
CFR 1910.134 and ANSI Z88.2 requirements or European
Standard EN 149 must be followed whenever workplace
conditions warrant respirator use.
**** SECTION 9 - PHYSICAL AND CHEMICAL PROPERTIES ****
Physical State: Crystals
Color: orange to red
Odor: odorless
pH: 4 (10% solution)
Vapor Pressure: 0 mm Hg @ 20 deg C
Viscosity: Not available.
Boiling Point: 400 deg C (dec)
Freezing/Melting Point: 357 deg C
Autoignition Temperature: Not available.
Flash Point: Not applicable.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature: 400 deg C
Solubility in water: Freely Soluble.
Specific Gravity/Density: 2.35 g/cm3 @ 20C
Molecular Formula: Na2Cr2O7.2H2O
Molecular Weight: 298.00
**** SECTION 10 - STABILITY AND REACTIVITY ****
Chemical Stability:
Stable under normal temperatures and pressures.
Conditions to Avoid:
Dust generation, excess heat.
Incompatibilities with Other Materials:
Reducing agents, anhydrides, finely powdered metals, hydrazine,
hydroxylamine, sulfuric acid, organic matter, hydrochloric acid,
hydrazine derivatives, combustible materials.
Hazardous Decomposition Products:
No data available.
Hazardous Polymerization: Has not been reported.
**** SECTION 11 - TOXICOLOGICAL INFORMATION ****
RTECS#:
CAS# 7789-12-0: HX7750000
CAS# 10588-01-9: HX7700000 HX7720000
LD50/LC50:
Not available.
CAS# 10588-01-9: Oral, rat: LD50 = 50 mg/kg.
LC50 (inhalation, rat): 0.124 mg/l/4H.
mg/kg.
Carcinogenicity:
Chromic acid, disodium salt, dihydrate -
California: carcinogen, initial date 2/27/87 (listed as Chromium (VI)
NTP: Known carcinogen (listed as Chromium (VI) compounds).
IARC: Group 1 carcinogen (listed as Chromium (VI) compounds).
Sodium dichromate, anhydrous -
California: carcinogen, initial date 2/27/87 (listed as Chromium (VI)
NTP: Known carcinogen (listed as Chromium (VI) compounds).
IARC: Group 1 carcinogen (listed as Chromium (VI) compounds).
Other:
See actual entry in RTECS for complete information.
**** SECTION 12 - ECOLOGICAL INFORMATION ****
Other
No information available.
**** SECTION 13 - DISPOSAL CONSIDERATIONS ****
Dispose of in a manner consistent with federal, state, and local regulations.
**** SECTION 14 - TRANSPORT INFORMATION ****
IATA
Shipping Name: OXIDIZING SOLID, TOXIC, N.O.S.
Hazard Class: 5.1
UN Number: 3087
Packing Group: III
IMO
Shipping Name: OXIDIZING SOLID, TOXIC, N.O.S.
Hazard Class: 5.1
UN Number: 3087
Packing Group: III
RID/ADR
Shipping Name: OXIDIZING SOLID, TOXIC, N.O.S.
Hazard Class: 5.1
UN Number: 3087
Packing group: III
USA RQ: CAS# 10588-01-9: 10 lb final RQ; 4.54 kg final RQ
**** SECTION 15 - REGULATORY INFORMATION ****
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: T+ O N
Risk Phrases:
R 46 May cause heritable genetic damage.
R 49 May cause cancer by inhalation.
R 21 Harmful in contact with skin.
R 25 Toxic if swallowed.
R 26 Very toxic by inhalation.
R 37/38 Irritating to respiratory system and skin.
R 41 Risk of serious damage to eyes.
R 43 May cause sensitization by skin contact.
R 50/53 Very toxic to aquatic organisms, may cause
long-term adverse effects in the aquatic environment.
R 8 Contact with combustible material may cause
fire.
Safety Phrases:
S 53 Avoid exposure - obtain special instructions
before use.
S 45 In case of accident or if you feel unwell, seek
medical advice immediately (show the label where
possible).
S 60 This material and its container must be
disposed of as hazardous waste.
S 61 Avoid release to the environment. Refer to
special instructions/safety data sheets.
WGK (Water Danger/Protection)
CAS# 7789-12-0: No information available.
CAS# 10588-01-9: 3
Canada
CAS# 10588-01-9 is listed on Canada's DSL List.
CAS# 7789-12-0 is not listed on Canada's Ingredient Disclosure List.
CAS# 10588-01-9 is listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 7789-12-0 is not on the TSCA Inventory because it is a hydrate.
It is considered to be listed if the CAS number for the anhydrous form
is on the inventory (40CFR720.3(u)(2)).
CAS# 10588-01-9 is listed on the TSCA inventory.
**** SECTION 16 - ADDITIONAL INFORMATION ****
Text for R-phrases from Section 2
MSDS Creation Date: 10/29/1998 Revision #6 Date: 6/23/2004
The information above is believed to be accurate and represents the best
information currently available to us. However, we make no warranty of
merchantability or any other warranty, express or implied, with respect to
such information, and we assume no liability resulting from its use. Users
should make their own investigations to determine the suitability of the
information for their particular purposes. In no way shall the company be
liable for any claims, losses, or damages of any third party or for lost
profits or any special, indirect, incidental, consequential or exemplary
damages, howsoever arising, even if the company has been advised of
the possibility of such damages.
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