Section II
PERSONAL PROTECTION INFORMATION
Respiratory Protection: A NIOSH approved respirator should be worn.
Self-contained breathing apparatus may be required when chemical is heated to decomposition
or in a spill area.
Eye and Face Protection: Splash-proof goggles should be worn when there is danger
of splash from solution containing chemical. Protection against splash or mist from solution
containing chemical with 8-inch minimum face shield is recommended. Eye protection should be
worn at all times.
Hand, Arm and Body Protection: Impervious gloves should be worn. Protective, impervious clothing
should be worn in presence to prevent contact with skin (coveralls, boots, etc.)
Other Protective Clothing and Equipment: Protect open wounds. Heating to decomposition
requires full protective clothing and self-contained breathing apparatus.
Engineering Controls: Adequate ventilation to maintain fluoride concentrations below
applicable standards.
Section III
HEALTH INFORMATION
OSHA Permissible Exposure Limit (PEL): 2.5mg/m
3(as F)
ACGIH Threshold Limit Value (TLV): 2.5mg/m
3(as F)
Listing in the following:
New Jersey "Right to Know" laws
Toxic Substances Control Act Inventory of toxic Substances (TSCA)
Comprehensive Env. Response, Compensation & Liability Act (CERCLA)
Hazardous Materials Tables & Appendix A of DOT Regulations (DOT)
OSHA Health Hazard Classification: Corrosive
Primary Route(s) of Entry: Eye and skin contact, inhalation
Symptoms of Exposure: Prickling or burning sensation of skin and mucous membranes.
Acute: Inhalation of dust or mist may cause severe mucous membrane irritation
and burns. Effects may not be immediately apparent, especially with diluted solutions.
First aid procedures should be followed even in cases of suspected contact.
Chronic: Causes severe skin irritation and burns. Ingestion or inhalation may be
harmful and possibly fatal depending on severity and length of over-exposure. Chronic
over-exposure may cause fluorosis. Product may be absorbed through the skin and bleeding may
develop. First aid procedures should be followed even in cases of suspected contact.
Aggravated Medical Condition: Any pre-existing skin or respiratory conditions.
Toxic Data: 200 mg/kg (Oral - Guinea Pig)
Section IV
EMERGENCY AND FIRST AID PROCEDURES
Inhalation: Remove exposed person promptly to fresh air. If breathing has stopped,
perform artificial respiration. Oxygen should be provided for a person having difficulty breathing
(but only administered by an authorized individual) until the person is able to breath easily by
themselves. Keep the affected person warm and at rest. Get medical attention as soon as possible.
Eye Contact: If chemical or solution containing chemical contacts the eyes, immediately
flush eyes with large amounts of water, lifting the upper and lower lids at periodic intervals to
insure contact of water with all accessible tissue of the eyes and lids. Medical attention should
be given as soon as possible, preferably an eye specialist.
Skin Contact: If chemical or solution containing chemical gets on the skin,
promptly wash the contaminated skin using soap or mild detergent and water. If chemical, or
solution containing chemical, soaks through clothing, remove the clothing promptly and
wash the skin using soap or mild detergent and water. Medical attention should be given as
soon as possible for all burns, regardless of how minor they seem.
Ingestion: If chemical or solution containing chemical has been swallowed, fluoride
poisoning is possible. If conscious, give the exposed person large quantities of water immediately.
Do
NOT induce vomiting. Several glasses of milk may be given for its soothing effect.
A physician should be contacted immediately.
Note to Physician: Exposed person should be observed for 48 - 72 hours for delayed
onset of pulmonary edema.
Section V
INGREDIENTS
| Composition |
|
|
|
|
Percentage |
| Sodium Bifluoride NaHF2 |
|
|
|
|
98.10 |
| Hydrogen Fluoride HF |
|
|
|
|
0.20 |
| Sodium Fluorosilicate Na2SiF6 |
|
|
|
|
0.50 |
| Insoluble Matter |
|
|
|
|
0.30 |
| Water (Moisture) H2O |
|
|
|
|
0.05 |
Section VI
PHYSICAL DATA
| Boiling Point: No Data |
Melting Point: Decomposes @ 160°C |
| Specific Gravity (H2O=1):
2.08 |
Vapor Pressure (mm Hg): N/A |
| Percent Volatile by Volume: N/A |
Vapor Density (Air=1) N/A |
| Solubility in Water: |
Evaporation Rate: N/A |
| 3.7g/100g H2O (20°C) |
| 7.5g/100g H2O (90°C) |
| Physical State: Fine granular material |
Molecular Weight: 62.01 |
| Bulk Density 1.0 - 1.1 kg/L |
pH (1% Solution): 4 |
Appearance and Odor: White, free flowing fine granular material, with irritating
odor.
Section VII
REACTIVITY
Stability: Stable.
Hazardous Polymerization: Will not occur.
Conditions and Materials to Avoid: Contact with acids, water, glass.
Avoid storage under moist conditions. Store in a cool, dry area. Protect from high
temperatures. Store in original containers.
Hazardous Decomposition Products: When heated to temperatures exceeding 100°C,
product decomposes, releasing highly toxic hydrogen fluoride gas.
Section VIII
FIRE AND EXPLOSION HAZARDS
Flash Point and Method Used: N/A
Flammable Limits - % Volume in Air: Lower N/A
Upper N/A
Extinguishing Media: This chemical is not flammable, but for fires in area where
this chemical is stored, use foam, dry chemicals or CO
2.
Special Fire Fighting Procedures and Precautions: Although this chemical is not flammable,
when heated to temperatures exceeding 100°C, it will decompose, releasing highly toxic hydrogen
fluoride gas. Firefighters should avoid all bodily contact, wear full protective clothing and
self-contained breathing apparatus.
Auto Ignition Temperature: N/A
Unusual Fire and Explosion Hazards: Hydrogen fluoride gas is released when chemical is
heated above 100°C. Contact with water may yield highly corrosive hydrofluoric acid.
Firefighters should avoid all bodily contact, wear full protective clothing and self-contained
breathing apparatus.
Section IX
STORAGE AND SPECIAL PRECAUTIONS
Handling and Storing Precautions: Store in a cool, dry place and away from acids. Use
only with adequate ventilation, dust mask or self-contained breathing apparatus. Protective
clothing should always be worn. Avoid contact with eyes, skin, and clothing. Keep bag or
container closed when not in use. Avoid breathing dust or mist.
Ventilation: Provide adequate general and/or local exhaust to maintain vapors below
acceptable air level maximums.
Other Precautions: If chemical should become heated in excess of 100°C, it will
decompose, releasing highly toxic hydrogen fluoride gas. If contact with water occurs,
hydrofluoric acid will form which is highly corrosive.
Section X
TRANSPORTATION REQUIREMENTS
| DOT Proper Shipping Name: Sodium Hydrogendifluoride |
Packing Group: II |
| DOT Hazard Class: 8 (Corrosive) |
Subsidiary Hazard Class: N/A |
| Identification Number: UN 2439 |
Placarding Requirement: Corrosive |
| EPA Hazardous Substance: Yes |
Reportable Quantity: 100 lbs |
| Hazardous Waste Number: Not Listed |
| RCRA Status of Unused Material if Discarded: Not Listed |
Waste Disposal Method: Used or unused product should be tested to determine
hazard status and disposer must comply with federal, state, and local disposal
or discharge laws.
Additional Comments: For International transportation, Sodium Hydrogendifluoride is
regulated by the International Maritime Organization (IMO) and the International Air
Transport Association (IATA)for vessel and air movement as a Class 8 corrosive. Packaging, marking,
labelling and shipping paper descriptions must precisely reflect the regulation for export
movement.
Section XI
EMERGENCY ACTION - SPILL OR LEAK
Emergency Action: Keep unnecessary people away. Stay upwind, keep out of low areas.
Isolate hazard area and deny entry. Ventilate closed spaces before entering them.
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.
Small Spills: Employees should be trained in safety procedures for the storage and handling
of this product. Any personnel in area should wear a NIOSH approved breathing apparatus and protective
clothing. Isolate product spill area. Carefully shovel material and place in clean, dry container
and cover. Remove container from spill site and dispose of in accordance with federal, state
and local regulations. Contact Chemtrec at 1-800-424-9300 for 24-hour emergency assistance.
Large Spills: Contact Chemtrec at 1-800-424-9300 for 24-hour emergency assistance.
Employees should be trained in safety procedures for the storage and handling of this product.
Any personnel in area should wear a NIOSH approved breathing apparatus and protective clothing.
Isolate product spill area. Carefully shovel material and place in clean, dry container and cover.
Remove container from spill site and dispose of in accordance with federal, state and local
regulations.
DISCLAIMER
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.
