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Knowledge becomes evil if the aim be not virtuous.
Plato  (427 BC - 347 BC)


Sources of Lead contamination in consumer products such as toys, shoes and packaging materials.


1. There are two main sources of Lead contamination:

2. According to REACH svhc list, there are 155 harmful chemicals in the list.

You will grasp the seriousness of the list when you notice that out of 70+ million known chemicals in planet earth, the most harmful 155 are included here.

Most in the svhc list are CMR, chemicals causing cancer, mutation and reproduction problems.


3. Among the 155 in shvc list (updated June 2014), the following are related to lead.


No. 13

Lead hydrogen arsenate

No. 19

Lead chromate

No. 20

Lead chromate molybdate sulfate red

No. 21

Lead sulfochromate yellow

No. 54

Lead styphate

No. 55

Lead diazide, Lead azide

No. 56

Lead dipicrate

No. 60

Trilead diarsenate

No. 79

Lead (II) bis(methanesulfonate)

No. 103

Basic lead carbonate

No. 104

Lead oxide sulfate

No. 105

Dibasic lead phthalate

No. 106

Dioxobis (stearato) trilead

No. 107

Fatty acids, C 16-18, lead salts

No. 108

Lead bis (tetrafluoroborate)

No. 109

Lead cynamidate

No. 110

Lead dinitrate

No. 111

Lead oxide

No. 112

Lead tetroxide

No. 113

Lead titanium trioxide

No. 114

Lead Titanium Zirconium oxide

No. 118

Silicic acid, lead salt

No. 119

Sulfurous acid, lead salt, dibasic

No. 120

Tetra ethyl lead

No. 121

Tetra lead trioxide sulphate

No. 122

Trilead dioxide phosphonate

No. 149

Lead di (acetate)


4. Steps to “detox” your supply chain:


4.1   Ask suppliers to provide material safety data sheet (MSDS), then check the CAS No. contains any banned substances such as heavy metals and CMR chemicals.

4.2   Ask suppliers to provide independent laboratory test report to show their raw materials do not contain banned substances.

       These reports should be updated very year by supplier.

4.3   Ask your pigment and stabilizer manufacturers to phase out lead in their production.

4.  Ask your suppliers to sign green document to guarantee that they don’t manufacture and they don’t handle Lead products in their production.

4.5   Choose a suppler with a lower test results.

4.6   Test your product and keep replacing toxic manufacturer by green manufacturer until your own product’s lead content reaches “not detected” level.


5. Comparison of toxicity of different metals.


Refer to regulation 2009/48/EC, 19 toxic metals are regulated in toys production.

When comparing the maximum allowable limits of these 19 metals, the lower the limits, the more toxic the metals, we have the following list.


Ranking by toxicity

Toxic elements

Maximum allowable limits

Most toxic

Chromium (VI)

0.2 mg/kg

2nd most toxic


12 mg/kg

3rd most toxic


17 mg/kg

4th most toxic


47 mg/kg

5th most toxic


94 mg/kg

6th most toxic


130 mg/kg

7th most toxic


160 mg/kg


In fact lead is ranked only 7th, the top three are Chromium, Organotin and Cadmium.

Chromium comes from electroplating

Organotin comes from Organotin stabilizers

Cadmium comes from Cadmium pigment and Cadmium stabilizers.


Green stabilizer production policy

Green stabilizer production certificate

TAC system


PS: special thanks to experts from China with 40 years experience in plastic industry for their advise.


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