PERSONAL PROTECTION INFORMATION
A NIOSH approved cartridge respirator with full-face shield.
Chemical cartridge should provide protection against acid fumes (Hydrogen Fluoride). For concentrations
greater than 20ppm, a NIOSH approved self-contained breathing apparatus with full-face shield
should be used.
Eye and Face Protection:
Use tight-fitting chemical splash goggles and a full-face
shield, 8 inch minimum. Contact lenses should not be worn.
Hand, Arm and Body Protection:
Prevent contact with skin by use of acid-proof clothing, gloves
and shoes. Use a NIOSH approved acid proof suit and boots where liquid or high vapor concentration
Other Protective Clothing and Equipment:
Eye wash and emergency shower facilities should
be available in handling area.
General or local exhaust systems sufficient to maintain vapors
OSHA Permissible Exposure Limit (PEL):
ACGIH Threshold Limit Value (TLV):
Listing in the following:
Department of Transportation Hazardous Material Regulations (49CFR)
Massachusetts Hazardous Substance List
toxic Substances Control Act Inventory of toxic Substances (TSCA)
OSHA Health Hazard Classification:
Primary Route(s) of Entry:
Eye and skin contact, inhalation
Symptoms of Exposure:
Liquid or vapors can cause severe irritation and burns which may not be
apparent for hours. Can cause severe irritation to the lungs, nose and throat if swallowed,
can cause severe damage to throat and stomach.
Prolonged exposure could result in bone changes, corrosive effect on mucous
membranes including ulceration of nose, throat and bronchial tubes, cough, shock, pulmonary
edema, Fluorosis, coma and death.
Aggravated Medical Condition:
Any skin condition and/or pre-existing respiratory
disease including asthma and emphysema.
200 mg/kg (Oral - Guinea Pig)
EMERGENCY AND FIRST AID PROCEDURES
Remove exposed person to an uncontaminated area immediately. If breathing
has stopped, start artificial respiration at once. Oxygen should be provided for an exposed
person having difficulty breathing (but only by an authorized person) until exposed person is
able to breathe easily by themselves. Exposed person should be examined by a physician.
Flush eyes for at least 15 minutes with large amounts of water.
Eyelids should be held apart during the flushing to insure contact of water with all accessible
tissue of the eyes and lids. Medical attention should be given as soon as possible.
Exposed person should be removed to an uncontaminated area and subjected
immediately to a drenching shower of water for a minimum of 15 to 20 minutes. Remove all contaminated
clothing while under shower. Medical attention should be given as soon as possible for all burns,
regardless of how minor they seem.
If conscious, give the exposed person large quantities of water immediately
to dilute the acid. Do NOT
induce vomiting. Milk may be given for its soothing effect.
A physician should be contacted immediately.
Note to Physician:
Beware of late onset of pulmonary edema for up to 48 hours. Treat
severe burns similar to Hydrofluoric Acid exposure.
||25.0 +/- 2%|
||75.0 +/- 2%|
Appearance and Odor:
|Boiling Point: 222°F (105°C)
||Freezing Point: 4°F(-15.5°C)
1.234 @ 25%
||Vapor Pressure(mm Hg): 24 @ 77° F
|Percent Volatile by Volume: N/A
||Vapor Density (Air=1): N/A
|Solubility in Water: Complete
||Evaporation Rate: N/A
|Physical State: Fuming Liquid
||Molecular Weight: 144.08
|Bulk Density: 10.29 lbs/gal @ 25%
||pH (1% Solution): 1.2
Water white to straw yellow,burning liquid,with pungent odor
Will not occur.
Conditions and Materials to Avoid:
Metal, glass, stoneware, alkali and
strong concentrated acids.
Hazardous Decomposition Products:
When heated to decomposition (222°F) it
emits highly toxic and corrosive fumes of Hydrogen Fluoride, Silicon Tetra-fluoride and
FIRE AND EXPLOSION HAZARDS
Flash Point and Method Used:
Flammable Limits - % Volume in Air: Lower
Use agent which is appropriate for surrounding fire.
Special Fire Fighting Procedures and Precautions:
Wear NIOSH approved self-contained acid suits.
Auto Ignition Temperature:
Unusual Fire and Explosion Hazards:
Reacts with many metals to produce flammable and
explosive hydrogen gas. Keep container cool with water, using fog nozzles, as decomposition will occur
222°F and produce toxic and corrosive fumes of fluoride.
STORAGE AND SPECIAL PRECAUTIONS
Handling and Storing Precautions:
Store in containers in cool, dry, well ventilated area away
from sources of heat or ignition. Do NOT
store in glass or stoneware. Use non-sparking tools.
Keep separate from alkali metals, oxidizing agent, combustible solids and organic peroxides.
Provide adequate general and/or local exhaust to maintain vapors below
Do not inhale fumes and prevent skin contact. If pungent, irritating
odor can be detected, workers are being over-exposed. Eye wash and safety shower should be available
in all acid handling areas.
RCRA Status of Unused Material if Discarded:
|DOT Proper Shipping Name: Fluorosilicic Acid
||Packing Group: II
|DOT Hazard Class: 8 (Corrosive)
||Subsidiary Hazard Class: N/A
|Identification Number: UN 1778
||Placarding Requirement: Corrosive
|EPA Hazardous Substance: No
||Reportable Quantity: N/A
Waste Disposal Method:
Disposer must comply with federal, state and local
disposal or discharge laws.
For International transportation, Fluorosilicic Acid is regulated
by the International Maritime Organization (IMO) and the International Air Transport Association
(IATA) for vessel and air movement as a Class 8. Packaging, marking, labelling and shipping paper
descriptions must precisely reflect the regulation for export movement.
EMERGENCY ACTION - SPILL OR LEAK
Keep unnecessary people away. Stay upwind, keep out of low areas.
Isolate hazard area and deny entry. We recommend that the user establish a spill prevention,
control and countermeasure plan. This plan should include procedures for proper storage as well
as containment and clean-up of spills and leaks. The procedures should conform to safe practices
and provide for proper recovery and disposal in accordance with federal, state and local regulation.
Contact Chemtrec at 1-800-424-9300 for 24-hour emergency assistance.
Any personnel in area should wear a NIOSH approved air supplied acid suit.
Dike area to contain material. Do not allow solution to enter sewers or surface water. Neutralize
the spill with water and lime (hydrated lime). Take up with sand or non-combustible absorbent
material and place in containers for later disposal. Provide ventilation and be wary of
hydrogen generation upon reaction with some metals. Contact Chemtrec at 1-800-424-9300 for
24-hour emergency assistance.
Contact Chemtrec at 1-800-424-9300 for 24-hour emergency assistance.
Any personnel in area should wear a NIOSH approved air supplied acid suit. Dike area ahead of spill
to contain material. Do not allow solution to enter sewers or surface water. Neutralize the spill
with water and lime (hydrated lime). Provide ventilation and be wary of hydrogen generation upon
reaction with some metals. Notify the National Response Center, if required.
The information presented herein is based on data considered to be accurate and that reflects the
requirements of the OSHA Hazard Communication Standards in effect as of the date of preparation
of this Material Safety Data Sheet. However, no warranty or representation, express or implied,
is made as to the accuracy or completeness of the foregoing data and safety information. In addition,
no responsibility can be assumed by vendor for any damage or injury resulting from abnormal use,
from any failure to adhere to recommended practices, or from any hazards inherent in the nature
of the product.