MSDS Number: BYC-0605

Effective Date:MAY.6,2006

1. Product Identification
Synonyms : Potassium fluoroborate
CAS No : 14075-53-7
Molecular Weight :125.9
Chemical Formula : KBF₄

2. Composition/Information On Ingreients

3.Hazards Identification
Principal effect due to irritant properties.
In case of decomposition, releases hydrogen fluoride.

4. First Aid Measures
Effects
Main effects
Possible irritation of the mucous membranes and eyes.
Inhalation
No reported cases of intoxication in man.
Risk of moderate consequences experimentally observed of under certain conditions.
Eyes contact
Slight irritation.
Skin contact
Risk of moderate consequences experimentally observed or under certain conditions.
Ingestion
By ingestion of large quantities: nausea and vomiting, abdominal cramps and diarrhea.
First aid
Inhalation
Remove the subject from dusty environment and let him blow his nose.
Consult with a physician in case of respiratory symptoms.
Eyes contact
Flush eyes with running water for several minutes, while keeping the eyelids wide open.
Consult with an ophthalmologist in case of persistent pain.
Skin contact
Wash the affected skin with soap and water.
Ingestion
General recommendations
Contact a physician for advice.
If the subject is completely conscious
Rinse mouth and administer fresh water.
If the subject is unconscious.
Not applicable
Medical treatment
General information
May reduce the uptake of iodine by the thyroid gland.

5. Fire Fighting Measures
Common extinguishing means
In case of fire in close proximity, all means of extinguishing are acceptable
Imappropriate extinguishing means
No restriction.
Specific hazards
Non-combustible
Formation of dangerous gas/ vapours in case of decomposition (see section 10).
Protective measures in case of intervention
Intervention only by capable personnel who are trained and aware of the hazards of the product.
Wear self contained breathing apparatus when in close proximity of in confined spaces.
When intervention in close proximity wear acid resistant over suit.
After intervention, proceed to clean the equipment (take a shower, remove clothing carefully, clean and check).
Other precautions
If safe to do so, remove the exposed containers.
After the fire, proceed rapidly to clean the surfaces exposed to the fumes in order to limit the damage to the equipment.
As for any fire, ventilate and clean the rooms before re-entry.

6.Accidental Release Measures
Precautions
Follow the protective measures given in section 8.
Keep away materials and products which are incompatible with the product (see section 10).
Avoid dispersing the dust into a cloud.
Clean up methods
Collect the product with suitable means avoiding dust formation.
Place everything into a closed, labeled container compatible with the product.
For disposal methods, refer to section 13.
Clean the area with large quantities of water.
Precautions for protection of the environment
Immediately notify the appropriate authorities in case of significant discharge.
Prevent discharges into the environment (sewers, rivers, soils,¡­).

7. Handling And Storage
Handling
Operate in a well-ventilated area.
Keep away from reactive products (see section 10).
Prevent any product decomposition from contacting hot spots.
Storage
In a ventilated, cool area.
Keep away from reactive products (see section 10).
Keep in original packaging, closed.
Other precautions
Avoid dust and formation of dust clouds.
Warm people about the dangers of the product.
Follow the protective measures given in section 8.
Packaging
Carton+PE
Paper+PE

8. Exposure Controls/Personal Protection
Engineering controls
Follow the protective measures given in section 7.
Provide local ventilation suitable for the dust risk.
Maintain employee exposures to levels below the applicable exposure limits.
Authorized limit values
Potassium tetrafluoroborate
TLV (ACGIH-USA) 2001
TWA=2.5mg/m 3
Remark: fluorides, as F
Respiratory protection
In case of dust clouds/fog/fumes, face mask with type P3 cartridge..
Use only respiratory protection that conforms to international /national standards.
Hand protection
Protective gloves - chemical resistant.
Recommended materials, PVC, neoprene, rubber
Eye protection
Dust proof goggles, if dusty.
Skin protection
overalls
other precautions
do not smoke, eat and drink in the working area.
Consult the industrial hygienist or the safety manager for the selection of personal protective equipment suitable for the working conditions.

9. Physical And Chemical Properties
Appearance :powder
Color/colour :white
Odor/odour :odorless/odourless
Change of state
Melting Point/Range : 530°C
Remark :decomposition
Boiling Point/Range :Not applicable
Flash Point :Not applicable
Density
Specific gravity :2.5
Bulk density : 1100kg /m3
Solubility
Water : 4.4g /l (temperature 20°C )
PH
Concentration : 4.4g /l (temperature 20°C )
Neutral(fresh solution) :5
Remark :after decomposition
Partition coefficient P (n-octanol/water) : Not applicable
Decomposition temperature :> 530°C
Granulomotry (90%) :<150um
Danger of explosion :no data

10. Stability And Reactivity
Stably: stable under certain conditions (see below)
Conditions To Avoid: heat/sources of heat
Materials To Avoid :strong acids, strong bases
Hazardous decomposition products :hydrogen fluoride, boron trifluoride

11. Toxicolagical Information
Acute toxicity
Oral route, LD 50, 5854mg/k, rat
Chronic toxicity
No specific data
No mutagenic effect
Contrarily to fluoride the tetrafluoroborate ion is not accumulable
Comments
Irritant effects linked to acid properties of the product

12. Ecological Information
Acute ecotoxicity
Fishes, brachydanio rerio, LC 50, 96h, 2.5g /l
Conditions: environmental PH (hydrofluoroboric acid 50%)
Chronic ecotoxicity
Result no data
Mobility
Result: mobility as solid aerosols
Water
Result: considerable solubility and mobility
Soil/ sediments
Result: considerable adsorption
Conditions: environmental PH / presence of iron and aluminum hydroxo-complexes
Abiotic degradation
Water/soil
Result: significant hydrolysis
Conditions: environmental PH
Degradation's products: boron trifluoride hydroxide
Biotic degradation
Result: not applicable (inorganic compound)
Potential for bloaccumulation
Bioconcentration: log Po/w
Result: not applicable (ionizable inorganic compound)
Comments
Product is not significantly hazardous for the aquatic environment.
Product fate is highly depending on environmental conditions: PH, temperature, oxidoreductive potential, mineral and organic content of the medium¡­.

13. Disposal Considerations
waste treatment
dispose in compliance with local/federal and national regulations.
Dissolve carefully in water.
Use lime or, preferably ,calcium hydroxide to precipitate the fluoride ion in the form of CaF 2
The reaction is slow, controls regularly its evolution.
Filtrate the product and send the cake to a landfill for industrial waste.
After neutralization, the filtrate can be discharged in the sewer.
Packaging treatment
Rinse the empty containers with alkaline water and treat the effluent in the same way as waste Or Dispose of the containers by dispatching them to an approved incineration facility for hazardous waste.
The empty and clean containers are to be reused in conformity with regulations.

14.Transport Imformaiton
Not subject

15. Regulatory Information
EC labeling
Name of dangerous product(s) (to indicate on the label):
Potassium tetrafluoroborate
Labeling according to article 8 of dir,92/32/EEC.
Symbols: Xi irritant
Phrases R :36 irritating to eyes.
Phrases S:22 do not breathe dust.
26 in case of contact with eyes, rinse immediately with plenty of water and seek medical advice.

16. Other Information

Disclaimer
Hengyang Bangyou Chemical Co., Ltd 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. Hengyang Bangyou Chemical Co., Ltd. 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, Hengyang Bangyou Chemical Co., Ltd. will not be responsible for damages resulting from use of or reliance upon this information.

Prepared by: Foreign Trade Dept.
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