SIGMA-ALDRICH
Material Safety Data Sheet
Date Printed: 14/NOV/2004
Date Updated: 12/MAR/2004
Version 1.3
According to 91/155/EEC
Classified as Hazardous according to the criteria of EU Annex 1 and
NOHSC.
1 - Product and Company Information
Product Name AMMONIUM DICHROMATE, 99%
Product Number 224812
Company Sigma-Aldrich Pty, Ltd
Unit 2, 14 Anella Avenue
Castle Hill NSW 1765
Australia
Technical Phone # +61 2 9841 0555
Fax +61 2 9841 0500
Emergency Phone # +61 2 9841 0566
2 - Composition/Information on Ingredients
Product Name CAS # EC no Annex I
Index Number
AMMONIUM DICHROMATE 7789-09-5 232-143-1 024-003-00-1
Formula (NH4)2Cr2O7
Molecular Weight 252.07 AMU
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)
3 - Hazards Identification
SPECIAL INDICATION OF HAZARDS TO HUMANS AND THE ENVIRONMENT
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.
Carc. Cat.2 Muta. Cat.2
4 - First Aid Measures
AFTER INHALATION
If inhaled, remove to fresh air. If not breathing give
artificial respiration. If breathing is difficult, give oxygen.
5 - Fire Fighting Measures
SPECIAL RISKS
Specific Hazard(s): Contact with other material may cause fire.
Emits toxic fumes under fire conditions.
Explosion Hazards: Container explosion may occur under fire
conditions.
SPECIAL PROTECTIVE EQUIPMENT FOR FIREFIGHTERS
Wear self-contained breathing apparatus and protective clothing
to prevent contact with skin and eyes.
6 - Accidental Release Measures
PERSONAL PRECAUTION PROCEDURES 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.
7 - Handling and Storage
HANDLING
Directions for Safe Handling: Do not breathe dust. Do not get in
eyes, on skin, on clothing. Avoid prolonged or repeated exposure.
STORAGE
Conditions of Storage: Keep tightly closed. Keep away from
combustible materials, heat, sparks, and open flame. Store in a
cool dry place.
8 - Exposure Controls / Personal Protection
ENGINEERING CONTROLS
Use only in a chemical fume hood. Safety shower and eye bath.
GENERAL HYGIENE MEASURES
Wash thoroughly after handling. Wash contaminated clothing before
reuse.
PERSONAL PROTECTIVE EQUIPMENT
Special Protective Measures: Wear appropriate government approved
respirator, chemical-resistant gloves, safety goggles, other
protective clothing.
9 - Physical and Chemical Properties
Appearance Form: Crystals
Property Value At Temperature or Pressure
pH 3-4
BP/BP Range N/A
MP/MP Range 170 掳C
Flash Point N/A
Flammability N/A
Autoignition Temp N/A
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Oxidizing Properties N/A
Explosive Properties N/A
Explosion Limits N/A
Vapor Pressure N/A
SG/Density 2.15 g/cm3
Partition Coefficient N/A
Viscosity N/A
Vapor Density 8.7 g/l
Saturated Vapor Conc. N/A
Evaporation Rate N/A
Bulk Density N/A
Decomposition Temp. N/A
Solvent Content N/A
Water Content N/A
Surface Tension N/A
Conductivity N/A
Miscellaneous Data N/A
Solubility N/A
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.
11 - Toxicological Information
RTECS NUMBER: HX7650000
ACUTE TOXICITY
LDLO LDLO
Oral Oral
Child Child
99 mg/kg 99 mg/kg
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.
SENSITIZATION
Skin: May cause allergic skin reaction.
SIGNS AND SYMPTOMS OF EXPOSURE
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
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pains, vomiting, diarrhea. To the best of our knowledge, the
chemical, physical, and toxicological properties have not been
thoroughly investigated.
ROUTE OF EXPOSURE
Multiple Routes: May be fatal if inhaled, swallowed, or absorbed
through skin.
TARGET ORGAN INFORMATION
Lungs. Kidneys. Liver.
CHRONIC EXPOSURE - CARCINOGEN
Result: Carcinogen.
IARC CARCINOGEN LIST
Rating: Group 1
12 - Ecological Information
No data available.
13 - Disposal Considerations
SUBSTANCE DISPOSAL
Contact a licensed professional waste disposal service to dispose
of this material. Observe all federal, state, and local
environmental regulations.
14 - Transport Information
RID/ADR
UN#: 1439
Class: 5.1
PG: II
Proper Shipping Name: Ammonium dichromate
IMDG
UN#: 1439
Class: 5.1
PG: II
Proper Shipping Name: Ammonium dichromate
Marine Pollutant: No
Severe Marine Pollutant: No
IATA
UN#: 1439
Class: 5.1
PG: II
Proper Shipping Name: Ammonium dichromate
Inhalation Packing Group I: No
15 - Regulatory Information
CLASSIFICATION AND LABELING ACCORDING TO EU DIRECTIVES
ANNEX I INDEX NUMBER: 024-003-00-1
NOTA: E
INDICATION OF DANGER: E T+ N
Explosive. Very toxic. Dangerous for the environment.
R-PHRASES: 49 46 1 8 21 25 26 37/38 41 43 50/53
May cause cancer by inhalation. May cause heritable genetic
damage. Explosive when dry. Contact with combustible material
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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-PHRASES: 53 45 60 61
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.
COUNTRY SPECIFIC INFORMATION
Germany
WGK: 3
SWITZERLAND
SWISS POISON CLASS: 3
16 - Other Information
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 2004 Sigma-Aldrich Co. License granted to make unlimited
paper copies for internal use only.
DISCLAIMER
For R&D use only. Not for drug, household or other uses.
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