Argotect Flux Safety Data Sheet

The following is the safety data information provided by the manufacturer of these products. Please read thoroughly and do not hesitate to contact us if you need further information.

1. Identification of substance
ARGOTECT FLUX – used to protect silver when annealing or as a brazing flux.

2. Composition
Mixture of tetraborate and fluroborate or potassium with boric acid.

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
Chronic long-term exposure to fume over the years 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.

Inhalation: Remove from exposure and allow to rest in fresh air. In acute cases seek medical advice.
Ingestion: Rinse mouth with water. Give milk or water to drink, do not induce vomiting. Seek medical advice.
Eyes: Irrigate with clean water or isotonic saline solution for 20 minutes. Seek medical advice if symptoms persist.
Skin: Remove contaminated clothing. Wash skin with soap and water. Seek medical advice if sores develop.

5. Fire fighting measures
Non flammable. Use full protective SCBA equipment if involved in a fire as harmful fumes may be evolved. Use any extinguishing medium suitable for the surrounding fire.

6. Accidental release measures
Collect up spillages for reuse or disposal. For large spills cover with sand or another inert absorbent and collect in suitable container for disposal. Clean area with warm soapy 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
Keep away from heat, moisture and water as they reduce self life. Keep container closed and store in cool, dry conditions.

8. Exposure controls and personal protection

8.1 Exposure controls
The following standards have been established for the following components –
Health and Safety Executive Occupational Exposure Standard

  (8hr TWA) (15min TWA)
Hydrogen Fluoride - 3ppm
Fluoride (as fluorine) 2.5mg/m3 -
Boron Trifluoride - 1ppm

8.2 Personal protection
Ventilation and Respiratory Protection: Provide efficient local exhaust ventilation necessary to meet T.L.V. requirements in the workplace. Personal respiratory protection should be worn when a risk of inhalation exists.

Other Protective Equipment: The use of barrier creams may prevent skin irritation. Face and/or eye protection is recommended where the possibility of getting dust in the eyes exists.

Work/Hygienic Practices: Avoid inhalation or ingestion. Practice good housekeeping. Avoid eating and smoking in the work area. Wash thoroughly before eating and smoking.

9. Physical and chemical properties

Appearance White powder
Boiling point/melting range Becomes fluid on heating – working range 550-800°C
Flash point Not applicable
Flammability Non flammable
Solubility Water – low solubility, no specific data
Contact Do not store in glass or porcelain containers

10. Stability and reactivity
Containers of powder left open once the seals are broken may absorb moisture and become lumpy.
No other adverse reactions are known.

11. Toxicological information
Toxicological data for these preparations: LD50 (oral>200mg/kg)

12. Ecological information
As far as is known this material does not present any ecological hazard.

13. Disposal considerations
Disposal according to local and national regulations.

14. Transport information

15. Regulatory information
EC Supply – 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
21 When using do not smoke
22 Do not breathe dust
26 In case of eye contact, rinse immediately with water and seek medical advice
28 After contact with skin, wash immediately with plenty of water

16. Other 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.

To buy Argotect Flux click here

If you have any further questions, feel free to call our friendly team who will be more than happy to give you some advice through Facebook, Twitter, Email or simply calling us on 01872 573888 9am-4pm UTC.

Alternatively, for more information and how to's on all areas of jewellery making visit our other Gemstone Setting Advice pages.