Anton Paar TTK 600, Reference Manual, Page: 79 / 85

Appendix E: Safety Data Sheet for Liquid Nitrogen
D52IB001EN-G 79
LIQUID NITROGEN - N
2
MSDS EFFECTIVE DATE: JUNE 9, 2010
PAGE 2 OF 7
3. HAZARD IDENTIFICATION
EMERGENCY OVERVIEW : Liquid Nitrogen is a colorless, odorless, cryogenic liquid. The main health hazard
associated with releases of this gas is asphyxiation, by displacement of oxygen. The cryogenic liquid will rapidly
boil to the gas at standard temperatures and pressures. The liquefied gas can cause freezing of tissue, or
cryogenic burns , similar to frostbite to eyes or skin upon contact.
SYMPTOMS OF OVER-EXPOSURE BY ROUTE OF
EXPOSURE
: The most significant routes of over-exposure for
this gas are by inhalation, and contact with the cryogenic liquid.
INHALATION : High concentrations of this gas can cause an
oxygen-deficient environment. Individuals breathing such an
atmosphere may experience symptoms which include
headaches, ringing in ears, dizziness, drowsiness,
unconsciousness, nausea, vomiting, and depression of all the
senses. Under some circumstances of over-exposure, death
may occur. The following effects associated with various levels
of oxygen are as follows:
CONCENTRATION SYMPTOM OF EXPOSURE
12-16% Oxygen: Breathing and pulse rate increased,
muscular coordination slightly
disturbed.
10-14% Oxygen: Emotional upset, abnormal fatigue,
disturbed respiration.
6-10% Oxygen: Nausea and vomiting, collapse or loss
of consciousness.
Below 6%: Convulsive movements, possible
respiratory collapse, and death.
CONTACT WITH SKIN or EYES : Contact of the liquid with the
skin can lead to severe cryogenic burns or dermatitis (red,
cracked, irritated skin), depending upon concentration and
duration of exposure. Contact of the liquid with the eyes can
cause pain, redness, severe cryogenic burns, and prolonged exposure could cause blindness. Contact with the
undiluted liquid will cause frostbite, ulceration of the skin (which may be delayed in appearance for several
hours), blistering, and pain. Contact with rapidly expanding gas poses a frostbite hazard.
OTHER POTENTIAL HEALTH EFFECTS : Contact with cryogenic liquid or rapidly expanding gases (which are
released under high pressure) may cause frostbite. Symptoms of frostbite include change in skin color to white or
grayish-yellow. The pain after contact with liquid can quickly subside.
HEALTH EFFECTS OR RISKS FROM EXPOSURE: An Explanation in Lay Terms . Over-exposure to Nitrogen
may cause the following health effects:
ACUTE : The most significant hazard associated with this gas is inhalation of oxygen-deficient atmospheres.
Symptoms of oxygen deficiency include respiratory difficulty, ringing in ears, headaches, shortness of breath,
wheezing, headache, dizziness, indigestion, nausea, and, at high concentrations, unconsciousness or death may
occur. The skin of a victim of over-exposure may have a blue color. Contact with cryogenic liquid or rapidly
expanding gases (which are released under high pressure) may cause frostbite. Symptoms of frostbite include
change in skin color to white or grayish-yellow. The pain after contact with liquid can quickly subside.
CHRONIC : There are currently no known adverse health effects associated with chronic exposure to this gas.
TARGET ORGANS: ACUTE: Respiratory system. CHRONIC: None known.
4. FIRST-AID MEASURES
RESCUERS SHOULD NOT ATTEMPT TO RETRIEVE VICTIMS OF EXPOSURE TO LIQUID
NITROGEN WITHOUT ADEQUATE PERSONAL PROTECTIVE EQUIPMENT. At a minimum, Self-
Contained Breathing Apparatus should be worn.
Remove victim(s) to fresh air, as quickly as possible. Trained personnel should administer supplemental oxygen
and/or cardio-pulmonary resuscitation, if necessary. Only trained personnel should administer supplemental oxygen.
Victim(s) must be taken for medical attention. Rescuers should be taken for medical attention, if necessary. Take
copy of label and MSDS to physician or other health professional with victim(s).
HEALTH HAZARD
FLAMMABILITY HAZARD
PHYSICAL HAZARD
PROTECTIVE EQUIPMENT
3
EYES
RESPIRATORY
HANDS BODY
(BLUE)
(RED)
For Routine Industrial Use and Handling Applications
SEE SECTION 8
HAZARDOUS MATERIAL IDENTIFICATION SYSTEM
(YELLOW)
0
0
SEE SECTION 8