SIGMA-ALDRICH
MATERIAL SAFETY DATA SHEET
Date Printed: 03/18/2005
Date Updated: 04/04/2004
Version 1.2
Section 1 - Product and Company Information
Product Name AMMONIUM DICHROMATE,
REAGENTPLUS(TM), 99%
Product Number 224812
Brand ALDRICH
Company Sigma-Aldrich
Street Address 3050 Spruce Street
City, State, Zip, Country SAINT LOUIS MO 63103 US
Technical Phone: 314 771 5765
Emergency Phone: 414 273 3850 Ext. 5996
Fax: 800 325 5052
Section 2 - Composition/Information on Ingredient
Substance Name CAS # SARA 313
AMMONIUM DICHROMATE 7789-09-5 No
Formula (NH4)2Cr2O7
Synonyms Ammonio (bicromato di) (Italian) * Ammonio
(dicromato di) (Italian) * Ammoniumbichromaat
(Dutch) * Ammoniumdichromat (German) * Ammonium
bichromate * Ammoniumdichromaat (Dutch) *
Ammonium dichromate * Ammonium (dichromate d')
(French) * Ammonium dichromate (VI) * Bichromate
d'ammonium (French)
RTECS Number: HX7650000
Section 3 - Hazards Identification
EMERGENCY OVERVIEW
Explosive. Highly Toxic (USA) Toxic (EU).
May cause cancer. Explosive when dry. Contact with combustible
material may cause fire. Toxic by inhalation, in contact with skin
and if swallowed. Causes burns. May cause sensitization by skin
contact.
Target organ(s): Lungs. Kidneys.
For additional information on toxicity, please refer to Section 11.
Section 4 - First Aid Measures
INHALATION EXPOSURE
If inhaled, remove to fresh air. If not breathing give
artificial respiration. If breathing is difficult, give oxygen.
Section 5 - Fire Fighting Measures
EXPLOSION HAZARDS
Container explosion may occur under fire conditions.
FLASH POINT
N/A
AUTOIGNITION TEMP
N/A
FLAMMABILITY
N/A
FIREFIGHTING
Protective Equipment: Wear self-contained breathing apparatus
and protective clothing to prevent contact with skin and eyes.
Specific Hazard(s): Contact with other material may cause fire.
Emits toxic fumes under fire conditions.
EXPOSURE HAZARD(S)
Material: Corrosive. Sensitizer.
Section 6 - Accidental Release Measures
PROCEDURE TO BE FOLLOWED IN CASE OF LEAK OR SPILL
Evacuate area.
PROCEDURE(S) OF PERSONAL PRECAUTION(S)
Wear self-contained breathing apparatus, rubber boots, and heavy
rubber gloves. Wear disposable coveralls and discard them after
use.
METHODS FOR CLEANING UP
Cover with dry lime or soda ash, pick up, keep in a closed
container, and hold for waste disposal.
Section 7 - Handling and Storage
HANDLING
User Exposure: Do not breathe dust. Do not get in eyes, on skin,
on clothing. Avoid prolonged or repeated exposure.
STORAGE
Suitable: Keep tightly closed. Keep away from combustible
materials, heat, sparks, and open flame. Store in a cool dry
place.
Section 8 - Exposure Controls / PPE
ENGINEERING CONTROLS
Use only in a chemical fume hood. Safety shower and eye bath.
PERSONAL PROTECTIVE EQUIPMENT
Other: Wear appropriate government approved respirator,
chemical-resistant gloves, safety goggles, other protective
clothing.
GENERAL HYGIENE MEASURES
Wash thoroughly after handling. Wash contaminated clothing before
reuse.
EXPOSURE LIMITS, RTECS
Country Source Type Value
USA USA ACGIH ACGIH TWA TWA 0.05 MG(CR)/M3 0.05 MG(CR)/M3
USA USA MSHA Standard-air TWA TWA 0.5 MG(CR)/M3 0.5 MG(CR)/M3
USA USA OSHA. OSHA. PEL PEL CL 0.1 MG(CRO3)/M3 CL 0.1 MG(C
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USA NIOSH TWA 0.001 MG(CR)/M3
Section 9 - Physical/Chemical Properties
Appearance Form: Crystals
Property Value At Temperature or Pressure
Molecular Weight 252.07 AMU
pH 3-4
BP/BP Range N/A
MP/MP Range 170 藲C
Freezing Point N/A
Vapor Pressure N/A
Vapor Density 8.7 g/l
Saturated Vapor Conc. N/A
SG/Density 2.15 g/cm3
Bulk Density N/A
Odor Threshold N/A
Volatile% N/A
VOC Content N/A
Water Content N/A
Solvent Content N/A
Evaporation Rate N/A
Viscosity N/A
Surface Tension N/A
Partition Coefficient N/A
Decomposition Temp. N/A
Flash Point N/A
Explosion Limits N/A
Flammability N/A
Autoignition Temp N/A
Refractive Index N/A
Optical Rotation N/A
Miscellaneous Data N/A
Solubility N/A
N/A = not available
Section 10 - Stability and Reactivity
STABILITY
Materials to Avoid: Strong reducing agents, Alcohols, Strong acids
Avoid contact with acid.
HAZARDOUS DECOMPOSITION PRODUCTS
Hazardous Decomposition Products: Nature of decomposition products
not known.
Section 11 - Toxicological Information
ROUTE OF EXPOSURE
Multiple Routes: May be fatal if inhaled, swallowed, or absorbed
through skin.
SENSITIZATION
Skin: May cause allergic skin reaction.
TARGET ORGAN(S) OR SYSTEM(S)
Lungs. Kidneys. Liver.
SIGNS AND SYMPTOMS OF EXPOSURE
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Inhalation of dichromate dusts can cause ulceration and
perforation of the nasal septum. Contact with breaks in the skin
can cause ulceration (chrome sores). Other symptoms of exposure
include erosion and discoloration of the teeth, nephritis,
epigastric pain (inflammation and ulceration of the
gastrointestinal tract). Material is extremely destructive to
tissue of the mucous membranes and upper respiratory tract,
eyes, and skin. Inhalation may result in spasm, inflammation and
edema of the larynxand bronchi, chemical pneumonitis, and
pulmonary edema. Symptoms of exposure may include burning
sensation, coughing, wheezing, laryngitis, shortness of breath,
headache, nausea, and vomiting. Exposure can cause: Stomach
pains, vomiting, diarrhea. To the best of our knowledge, the
chemical, physical, and toxicological properties have not been
thoroughly investigated.
TOXICITY DATA
Oral Oral
Child Child
99 mg/kg 99 mg/kg
LDLO LDLO
Remarks: Gastrointestinal:Other changes. Kidney, Ureter,
Bladder:Changes in tubules (including acute renal failure, acute
tubular necrosis). Blood:Change in clotting factors.
Gastrointestinal:Other changes. Kidney, Ureter, Bladder:Changes
in tubules (including acute renal failure, acute tubular
necrosis). Blood:Change in clotting factors.
CHRONIC EXPOSURE - CARCINOGEN
Result: Carcinogen.
IARC CARCINOGEN LIST
Rating: Group 1
ACGIH CARCINOGEN LIST
Rating: A1
Section 12 - Ecological Information
No data available.
Section 13 - Disposal Considerations
APPROPRIATE METHOD OF DISPOSAL OF SUBSTANCE OR PREPARATION
Contact a licensed professional waste disposal service to dispose
of this material. Observe all federal, state, and local
environmental regulations.
Section 14 - Transport Information
DOT
Proper Shipping Name: Ammonium dichromate
UN#: 1439
Class: 5.1
Packing Group: Packing Group II
Hazard Label: Oxidizer
PIH: Not PIH
IATA
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Proper Shipping Name: Ammonium dichromate
IATA UN Number: 1439
Hazard Class: 5.1
Packing Group: II
Section 15 - Regulatory Information
EU DIRECTIVES CLASSIFICATION
Symbol of Danger: E T+ N
Indication of Danger: Explosive. Very toxic. Dangerous for the
environment.
R: 49 46 1 8 21 25 26 37/38 41 43 50/53
Risk Statements: May cause cancer by inhalation. May cause
heritable genetic damage. Explosive when dry. Contact with
combustible material may cause fire. Also harmful in contact
with skin. Also toxic if swallowed. Also very toxic by
inhalation. Irritating to respiratory system and skin. Risk of
serious damage to eyes. May cause sensitization by skin contact.
Very toxic to aquatic organisms, may cause long-term adverse
effects in the aquatic environment.
S: 53 45 60 61
Safety Statements: Restricted to professional users. Attention -
Avoid exposure - obtain special instructions before use. In case
of accident or if you feel unwell, seek medical advice
immediately (show the label where possible). This material and
its container must be disposed of as hazardous waste. Avoid
release to the environment. Refer to special instructions/safety
data sheets.
US CLASSIFICATION AND LABEL TEXT
Indication of Danger: Explosive. Highly Toxic (USA) Toxic (EU).
Risk Statements: May cause cancer. Explosive when dry. Contact
with combustible material may cause fire. Toxic by inhalation,
in contact with skin and if swallowed. Causes burns. May cause
sensitization by skin contact.
Safety Statements: Avoid exposure - obtain special instructions
before use. In case of contact with eyes, rinse immediately with
plenty of water and seek medical advice. After contact with
skin, wash immediately with plenty of water. This material and
its container must be disposed of in a safe way. In case of
accident or if you feel unwell, seek medical advice immediately
(show the label where possible).
US Statements: Target organ(s): Lungs. Kidneys.
UNITED STATES REGULATORY INFORMATION
SARA LISTED: No
NOTES: This product is subject to SARA section 313 reporting
requirements. This product is subject to SARA section 313
reporting requirements.
TSCA INVENTORY ITEM: Yes Yes
UNITED STATES - STATE REGULATORY INFORMATION
CALIFORNIA PROP - 65
California Prop - 65: California Proposition 65: This product is
or contains chemical(s) known to the state of California to
cause cancer. California Proposition 65: This product is or
contains chemical(s) known to the state of California to cause
cancer.
CANADA REGULATORY INFORMATION
WHMIS Classification: This product has been classified in
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accordance with the hazard criteria of the CPR, and the MSDS
contains all the information required by the CPR.
DSL: Yes
NDSL: No
Section 16 - Other Information
DISCLAIMER
For R&D use only. Not for drug, household or other uses.
WARRANTY
The above information is believed to be correct but does not
purport to be all inclusive and shall be used only as a guide. The
information in this document is based on the present state of our
knowledge and is applicable to the product with regard to
appropriate safety precautions. It does not represent any
guarantee of the properties of the product. Sigma-Aldrich Inc.,
shall not be held liable for any damage resulting from handling or
from contact with the above product. See reverse side of invoice
or packing slip for additional terms and conditions of sale.
Copyright 2005 Sigma-Aldrich Co. License granted to make unlimited
paper copies for internal use only.
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