Easy Flo Flux Safety Data Sheet

The following safety data information is provided by the manufacturer of this product. Please read thoroughly and do not hesitate to contact us if you need further information. The information provided in this Safety Data Sheet is correct to the best of our knowledge, information and belief at the date of its publication.

1. Identification of substance
Product name: Easy-flo Flux Powder
Form: White powder
Working range: 550 - 800°C
pH: 8

2. Composition
Mixture of potassium bifluoride (CAS No. 7789-29-9, potassium tetraborate (CAS No. 1337-77-0), potassium fluoroborate (CAS No. 14075-53-7) with boric acid (CAS No. 10043-35-3) and boric anhydride (CAS No. 1303-86-2).

3. Hazards identification
The main hazard with this product occurs in its use. On heating the flux will fume slightly, and with overheating the fume will increase. The fumes produced include hydrogen fluoride and boron trifluoride which can cause irritation to the nasal passages, eyes and throat.
The flux is harmful by ingestion and is irritating to the eyes. Contact with the skin may cause irritation.

4. First-aid measures
Severe long-term exposure to fume may result in fluorosis. In acute cases there is a danger of pulmonary oedema although this occurrence could also result from the inhalation of brazing metal fume or torch gases. Inhalation of fumes will be irritating to the nose and throat and will cause smarting of the eyes.
Tests carried out on the fluxes indicate they are moderately irritating to the skin and if the skin is broken immediate irritation will occur on contact. The use of barrier creams may prevent skin irritation.
Inhalation: Remove from exposure and allow to rest in fresh air. In acute cases apply artificial respiration and if necessary, summon medical aid.
Ingestion: Rinse mouth with water and give patient water or milk mixed with calcium carbonate (chalk) to drink. Do not induce vomiting. Summon medical aid.
Eyes: Irrigate with clean water or isotonic saline solution for 20 minutes. Seek medical attention if there is any hint of eye damage.
Skin: Remove contaminated clothing and wash skin with soap and water. Seek medical attention if sores develop. Launder clothing before re-use.

5. Fire fighting measures
Non flammable. Use full protection with breathing apparatus if involved in a fire as harmful fumes may be evolved. Use any extinguishing medium suitable for the surrounding fire.

6. Accidental release measures
Powder: Carefully sweep up and collect in suitable container for re-use or disposal. Avoid contact with skin or eyes and do not inhale dust.
Paste: Either collect in suitable container for re-use or disposal. For large spills, cover with sand or other inert absorbent and collect in suitable container for disposal. Wash area with water. Avoid contact with skin or eyes.

7. Handling and storage

7.1 Handling

Use only under conditions of good local ventilation or efficient extraction systems and do not inhale fumes evolved during use. Avoid contact with skin and eyes. Do not eat, drink, smoke or apply cosmetics whilst using this material. Keep away from food, drink, and animal feeding stuffs and out of reach of children. Observe good industrial hygiene practices.

7.2 Storage
Store in a cool, dry place. Keep container closed when not in use. Do not freeze paste.

8. Exposure controls and personal protection

8.1 Exposure controls

The following standards have been established for the following components –
UK Occupational Exposure Standards:

  Long Term (8hr TWA) Short Term (15min TWA)
Hydrogen Fluoride (as F) - 2.5mg/m³
Fluoride (as fluorine) 2.5mg/m³* -
Boron Trifluoride - 3mg/m³

*Time weighted average

8.2 Personal protection
Avoid exposure to fume with good ventilation or local extraction. If a risk of inhalation exists, personal respiratory protection should be worn. Safety glasses should be worn as impervious gloves to prevent skin contact. Wash hands after using this material. The use of protective clothing is recommended.

9. Physical and chemical properties
Appearance: White powder
Odour No: detectable odour
pH: 8
Boiling point/melting range: Becomes fluid on heating – working range 550-800°C
Flash point: Not applicable
Flammability: Not flammable
Oxidising properties: Not oxidising
Solubility: Water – low solubility, no specific data

10. Stability and reactivity
Containers of powder left open once the seals are broken may absorb moisture and become lumpy. Pastes are water based and, whilst stable, will lose water by evaporation if left open. Avoid contact with acids and strong oxidising agents.

11. Toxicological information
Toxicological data for these preparations: LD50 (oral – rat) >200mg/kg
Classified as moderately irritating, according to Draize skin test.

12. Ecological information
Likely to be harmful to all species of animal life. As far as is known no other threat is posed to the environment.

13. Disposal considerations
Disposal according to local and national regulations. Registered waste contractors should be aware of the composition and data in section 2 of this document.

14. Transport information
Not classified for land, sea or air transport. No UN No’s have been issued for fluxes.

15. Regulatory information

Material classification  Harmful
Risk phrases 20/22 Harmful by inhalation and if swallowed
36/38 Irritating to eyes and skin
Safety phrases

2 Keep out of reach of children
13 Keep away from food, drink and animal feeds
20/21 When using do not eat, drink or smoke
22/23 Do not breathe dust or fumes
26 In case of eye contact, rinse immediately with water and seek medical advice
45 In case of feeling unwell seek medical attention

16. Other information
For further information, see Johnson Mathey Data Sheet 1100:108 “Health and Safety in Brazing”.
Guidance Note EH54 “Assessment of Exposure to fume from welding and allied processes” HSE 1990.
Guidance Note EH55 “The control of exposure to fume from welding, brazing and similar processes” HSE 1990.

The information provided in this Safety Data Sheet is correct to the best of our knowledge, information and belief at the date of its publication.

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