MSDS Number: N3662 * * * * * Effective Date: 02/13/08 * * * * *
Supercedes: 05/06/05

NITRIC ACID

1. Product Identification

Synonyms: Aqua Fortis; Azotic Acid; Nitric Acid 90-100%

CAS No.: 7697-37-2
Molecular Weight: 63
Chemical
Formula: HNO3
Product Codes:
J.T. Baker: 9624

Mallinckrodt: 2713

2. Composition/Information on Ingredients

Ingredient CAS No Percent Hazardous
--------------------------------------- ------------ ------------ ---------

Nitric Acid 7697-37-2 90 - 100% Yes

3. Hazards Identification

Emergency Overview
--------------------------

POISON! DANGER! STRONG OXIDIZER. CONTACT WITH OTHER MATERIAL MAY CAUSE
FIRE. CORROSIVE. LIQUID AND MIST CAUSE SEVERE BURNS TO ALL BODY TISSUE. MAY BE
FATAL IF SWALLOWED OR INHALED. INHALATION MAY CAUSE LUNG AND TOOTH DAMAGE.

SAF-T-DATA(tm) Ratings (Provided here for your
convenience)

-----------------------------------------------------------------------------------------------------------

Health Rating: 4 - Extreme (Poison)
Flammability Rating: 0 - None

Reactivity Rating: 3 - Severe (Oxidizer)
Contact Rating: 4 - Extreme
(Corrosive)
Lab Protective Equip: GOGGLES & SHIELD; LAB COAT &
APRON; VENT HOOD; PROPER GLOVES
Storage Color Code: White (Corrosive)

Potential Health Effects
----------------------------------

Nitric acid is extremely hazardous; it is corrosive, reactive, an
oxidizer, and a poison.

Inhalation:
Corrosive! Inhalation
of vapors can cause breathing difficulties and lead to pneumonia and pulmonary
edema, which may be fatal. Other symptoms may include coughing, choking, and
irritation of the nose, throat, and respiratory tract. Symptoms may disappear
only to return in a few hours and more severely. Onset of symptoms may be
delayed for 4-30 hours.
Ingestion:
Corrosive! Swallowing nitric
acid can cause immediate pain and burns of the mouth, throat, esophagus and
gastrointestinal tract.
Skin Contact:
Corrosive! Can cause
redness, pain, and severe skin burns. Concentrated solutions cause deep ulcers
and stain skin a yellow or yellow-brown color.
Eye Contact:

Corrosive! Vapors are irritating and may cause severe damage to the eyes.
Splashes may cause severe burns and permanent eye damage.
Chronic
Exposure:
Long-term exposure to concentrated vapors may cause erosion
of teeth and lung damage. Long-term exposures seldom occur due to the
corrosive properties of the acid.
Aggravation of Pre-existing
Conditions:
Persons with pre-existing skin disorders, eye disease, or
cardiopulmonary diseases may be more susceptible to the effects of this
substance.

4. First Aid Measures

Immediate first aid treatment reduces the health effects of this
substance.
Inhalation:
Remove to fresh air. If not breathing,
give artificial respiration. If breathing is difficult, give oxygen. Call a
physician.
Ingestion:
DO NOT INDUCE VOMITING! Give large
quantities of water or milk if available. Never give anything by mouth to an
unconscious person. Get medical attention immediately.
Skin
Contact:
In case of contact, immediately flush skin with plenty of
water for at least 15 minutes while removing contaminated clothing and shoes.
Wash clothing before reuse. Thoroughly clean shoes before reuse. Get medical
attention immediately.
Eye Contact:
Immediately flush eyes with
plenty of water for at least 15 minutes, lifting lower and upper eyelids
occasionally. Get medical attention immediately.

5. Fire Fighting Measures

Fire:
Not combustible, but substance is a strong
oxidizer and its heat of reaction with reducing agents or combustibles may
cause ignition. Can react with metals to release flammable hydrogen gas.

Explosion:
Reacts explosively with combustible organic or
readily oxidizable materials such as: alcohols, turpentine, charcoal, organic
refuse, metal powder, hydrogen sulfide, etc. Reacts with most metals to
release hydrogen gas which can form explosive mixtures with air.
Fire
Extinguishing Media:
Water spray may be used to keep fire exposed
containers cool. Do not get water inside container.
Special
Information:
Increases the flammability of combustible, organic and
readily oxidizable materials. 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. Wear appropriate personal
protective equipment as specified in Section 8. Isolate hazard area. Keep
unnecessary and unprotected personnel from entering. Contain and recover
liquid when possible. Neutralize with alkaline material (soda ash, lime), then
absorb with an inert material (e. g., vermiculite, dry sand, earth), and place
in a chemical waste container. Do not use combustible materials, such as saw
dust. Do not flush to sewer! US Regulations (CERCLA) require reporting spills
and releases to soil, water and air in excess of reportable quantities. The
toll free number for the US Coast Guard National Response Center is (800)
424-8802.

7. Handling and Storage

Store in a cool, dry, ventilated storage area with acid resistant
floors and good drainage. Protect from physical damage. Keep out of direct
sunlight and away from heat, water, and incompatible materials. Do not wash
out container and use it for other purposes. When diluting, the acid should
always be added slowly to water and in small amounts. Never use hot water and
never add water to the acid. Water added to acid can cause uncontrolled
boiling and splashing. Containers of this material may be hazardous when empty
since they retain product residues (vapors, liquid); observe all warnings and
precautions listed for the product.

8. Exposure Controls/Personal Protection

Airborne Exposure Limits:
-OSHA Permissible Exposure
Limit (PEL):
2 ppm (TWA), 4 ppm (STEL)
-ACGIH Threshold Limit Value
(TLV):
2 ppm (TWA); 4 ppm (STEL)
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, wear a supplied air, full-facepiece
respirator, airlined hood, or full-facepiece self-contained breathing
apparatus. Breathing air quality must meet the requirements of the OSHA
respiratory protection standard (29CFR1910.134). Nitric acid is an oxidizer
and should not come in contact with cartridges and canisters that contain
oxidizable materials, such as activated charcoal. Canister-type respirators
using sorbents are ineffective.
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 a full face shield where splashing is
possible. Maintain eye wash fountain and quick-drench facilities in work area.

9. Physical and Chemical Properties

Appearance:
Light yellow to yellow liquid.

Odor:
Suffocating, acrid.
Solubility:
Infinitely
soluble.
Density:
1.5
pH:
No information found.

% Volatiles by volume @ 21C (70F):
100 (as water and acid)

Boiling Point:
85C (185F)
Melting Point:
ca.
-50C (ca. -58F)
Vapor Density (Air=1):
2-3
Vapor
Pressure (mm Hg):
48 @ 20C (68F)
Evaporation Rate (BuAc=1):

No information found.

10. Stability and Reactivity

Stability:
Stable under ordinary conditions of use and
storage. Containers may burst when heated.
Hazardous Decomposition
Products:
When heated to decomposition, emits toxic nitrogen oxides
fumes and hydrogen nitrate. Will react with water or steam to produce heat and
toxic and corrosive fumes.
Hazardous Polymerization:
Will not
occur.
Incompatibilities:
A dangerously powerful oxidizing
agent, fuming nitric acid is incompatible with most substances, especially
strong bases, metallic powders, carbides, hydrogen sulfide, turpentine, and
combustible organics.
Conditions to Avoid:
Heat, light,
moisture.

11. Toxicological Information

For Nitric Acid: Oral (human) LDLo: 430 mg/kg; Inhalation,rat,
LC50: 67 ppm (NO2)/4H.; Investigated as a mutagen and reproductive effector.

--------\Cancer Lists\------------------------------------------------------
---NTP Carcinogen---
Ingredient Known Anticipated IARC Category
------------------------------------ ----- ----------- -------------
Nitric Acid (7697-37-2) No No None

12. Ecological Information

Environmental Fate:
No information found.

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

Domestic (Land, D.O.T.)
-----------------------

Proper Shipping Name: NITRIC ACID, other than red fuming, with more
than 70% nitric acid
Hazard Class: 8, 5.1
UN/NA: UN2031

Packing Group: I
Information reported for product/size: 500ML

International (Water, I.M.O.)
-----------------------------

Proper Shipping Name: NITRIC ACID, other than red fuming, with more
than 70% nitric acid
Hazard Class: 8, 5.1
UN/NA: UN2031

Packing Group: I
Information reported for product/size: 500ML

International (Air, I.C.A.O.)
-----------------------------

Proper Shipping Name: NITRIC ACID, other than red fuming, with more
than 70% nitric acid
Hazard Class: 8, 5.1
UN/NA: UN2031

Packing Group: I
Information reported for product/size: 500ML

15. Regulatory Information

--------\Chemical Inventory Status - Part 1\---------------------------------
Ingredient TSCA EC Japan Australia
----------------------------------------------- ---- --- ----- ---------
Nitric Acid (7697-37-2) Yes Yes Yes Yes

--------\Chemical Inventory Status - Part 2\---------------------------------
--Canada--
Ingredient Korea DSL NDSL Phil.
----------------------------------------------- ----- --- ---- -----
Nitric Acid (7697-37-2) Yes Yes No Yes

--------\Federal, State & International Regulations - Part 1\----------------
-SARA 302- ------SARA 313------
Ingredient RQ TPQ List Chemical Catg.
----------------------------------------- --- ----- ---- --------------
Nitric Acid (7697-37-2) 1000 1000 Yes No

--------\Federal, State & International Regulations - Part 2\----------------
-RCRA- -TSCA-
Ingredient CERCLA 261.33 8(d)
----------------------------------------- ------ ------ ------
Nitric Acid (7697-37-2) 1000 No No

Chemical Weapons Convention: No TSCA 12(b): No CDTA: No
SARA 311/312: Acute: Yes Chronic: Yes Fire: Yes Pressure: No
Reactivity: Yes (Pure / Liquid)

Australian Hazchem Code: 2PE
Poison
Schedule: S6
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: 4 Flammability: 0
Reactivity: 1 Other: Oxidizer
Label Hazard Warning:

POISON! DANGER! STRONG OXIDIZER. CONTACT WITH OTHER MATERIAL MAY CAUSE
FIRE. CORROSIVE. LIQUID AND MIST CAUSE SEVERE BURNS TO ALL BODY TISSUE. MAY BE
FATAL IF SWALLOWED OR INHALED. INHALATION MAY CAUSE LUNG AND TOOTH DAMAGE.

Label Precautions:
Do not get in eyes, on skin, or on
clothing.
Do not breathe vapor or mist.
Use only with adequate
ventilation.
Wash thoroughly after handling.
Keep from contact with
clothing and other combustible materials.
Do not store near combustible
materials.
Store in a tightly closed container.
Remove and wash
contaminated clothing promptly.
Label First Aid:
In case of
contact, immediately flush eyes or skin with plenty of water for at least 15
minutes while removing contaminated clothing and shoes. Wash clothing before
reuse. If swallowed, DO NOT INDUCE VOMITING. Give large quantities of water.
Never give anything by mouth to an unconscious person. If inhaled, remove to
fresh air. If not breathing, give artificial respiration. If breathing is
difficult, give oxygen. In all cases call a physician.
Product Use:

Laboratory Reagent.
Revision Information:
MSDS Section(s)
changed since last revision of document include: 1, 9, 14.

Disclaimer:

************************************************************************************************

Mallinckrodt Baker, Inc. 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.
MALLINCKRODT BAKER, INC. 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, MALLINCKRODT BAKER, INC. WILL NOT BE RESPONSIBLE FOR DAMAGES
RESULTING FROM USE OF OR RELIANCE UPON THIS INFORMATION.

************************************************************************************************

Prepared by: Environmental Health & Safety
Phone Number:
(314) 654-1600 (U.S.A.)