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Silver Solder > Health & Safety > COSSH - Lead Bearing Solders

COSSH - Lead Bearing Solders

COSSH Information - Lead Bearing Solders

1. Supplier
CuP Alloys Ltd
Unit 36 Matrix Business Centre
Nobel Way
Dinnington
S25 3QB Tel 01909 547248 Fax 01909 547001

2. Product Information
60/40    60% Tin, 40% Lead
40/60    40% Tin ,60% Lead
CuPSol   1.7% Silver, 5% Tin, Bal Lead
TLC       49.5% Tin, 32.5% Lead, Bal Cadmium.

Generally made to EN 29453

Ingredient CAS No. Classification Symbol Risk Phrases
Lead (dusts, fumes) 7439-92-1 T 20/22- 33 - 61
Modified Rosins 8050-09-7 Xn 42/43

R20/22 Harmful by inhalation and if swallowed
R33 Danger of cumulative effects
R42/43 May cause sensitisation by inhalation and skin contact
R61 May cause harm to unborn child.

3. Hazards Identification
Re TLC alloy. Cadmium classified 2 suspected carcenogen for humans. May be toxic to kidneys, liver, mucus membrane, upper resporatory tract. Prolonged exposure can produce target organ damage.
Inhalation of the flux fumes given off with use will irritate the nose and throat.
Repeated or prolonged exposure to flux fumes may cause an allergic reaction leading to occupational asthma.
At normal soldering temperatures and upto 500° C, negligible lead fume is produced.
Lead is harmful if absorbed into the body and can cause birth defects and other reproductive harm.

4. First Aid Measures
Inhalation - Flux fumes will irritate the nose and throat. Remove affected person to fresh air. Seek medical attention if there is respiratory distress.
Skin Contact - Rosin and its' derivatives can cause a rash to develop. Seek medical advice.
Wash hands with soap and water after handling solder wire.
Eye Contact - Flux fumes may irritate the eyes. The flux may spit during soldering. Flush immediately with plenty of water.
Ingestion Not relevant

5. Fire Fighting Measures
Suitable Media - Dry chemical, carbon dioxide, water spray or foam
Do not use water jet.
Exposure Hazards - Temperatures above 500° C may produce heavy metal dust fumes or vapours which may be irritating.
Protective Measures - Wear full protective clothing and breathing apparatus working at a positive pressure.

6. Accidental Release Measures
Personal Precautions - Refer to Section 8
Environmental Precautions - Refer to Section 13. Disposal.
Methods of clearing up - Place in closed container

7. Handling & Storage
Handling - The fumes produced during use should be extracted away from the operators breathing zone.
Ensure that the general area is well ventilated.
Wash the hands with soap and water after handling the solder.
Storage Store in a cool dry place, away from food and drinks and keep out of reach of children.

8. Exposure Controls & Personal Protection
Maximum Exposure Limits
Substance Long Term (8 hour) Short Term (15 min)
Rosin based flux fume 0.05mg/m³ 0.15mg/m
Lead 0.15mg/m³ -

Personal Protection
Respiratory - Necessary if there is a risk of exposure to high concentration of cadmium or flux fumes
Eye Protection - Wear safety goggles
Skin Protection - Wear gloves and use barrier creams.

9. Physical Properties & Appearance
Appearance - Grey colour Odour - Odourless
Boiling Point - n/a Flash Point - n/a
Vapour Pressure - n/a Evaporation Rate - n/a
Flammability - n/a

Melting Ranges
60/40   183 -188° C
40/60   183 -234° C
CuPSol 296 - 301° C
TLC      145o C

10. Stability & Reactivity
Conditions to Avoid - Temperatures above 500° C
Materials to Avoid -Solder will react with concentrated nitric acid to release poisonous fumes of nitric oxide. This will convert to a pungent, red gas of nitrogen dioxide.
If personnel are exposed to these gases seek medical attention immediately.
Solders may react with other strong acids to release explosive hydrogen gas.

11. Toxicological Information
Re TLC see section 3.

Acute Toxicity - Flux fumes produced during soldering will irritate the nose.

Chronic Toxicity - Lead can cause weakness, insomnia headaches and pains in the joints. Chronic exposure can cause damage to the blood-forming, nervous, urinary and reproductive systems. Lead is classified as a 2B carcinogen.

Reproductive Toxicity - The placenta offers no barrier to the transport of lead from the mothers blood to the foetus.

12. Ecological Information
Lead is not degradable, is insoluble in water and is not attacked by most inorganic acids and bases.

13. Disposal Considerations
Disposal should be in accordance with Control of Pollution Act 1974 and the Environment Protection Act 1990.

14. Transport Information.
Lead bearing solders are not classified as hazardous.

15. Regulatory Information.
Flux cored wire is considered to be an article and is not subject to the classification (Hazard Information and Packaging and Supply) Regulations 1994 because it is not hazardous as supplied. However it may become so in use. This data sheet reflects this.

16. Other Information.
Compiled in accordance with
CHIP 2 Regulations 1994
HSE Approved Code of Practice Document LS2
Dangerous Substances Directive 92/93/EEC
Dangerous Preparations Directive 90/492 EEC
Lead at Work Directive 82.605/EEC
Health & Safety at Work Act 1974

The information contained in this sheet is believed to be accurate but CuP Alloys Ltd assumes no responsibility for its' accuracy or completeness. Final determination of the suitability of a product remains the responsibility of the user.