These are other chemicals / substances / process with a usage ban.
| Substance | CASNO |
Applicability
Supplier Guidance
Formulation Limit
|
General Techniques for Analysing Chemicals | Guidance Sheet | |
|---|---|---|---|---|---|
| Diazene-1,2-dicarboxamide [C,C`-azodi(formamide)] (ADCA) |
123-77-3 |
Textile
No intentional use
1000 mg/kg
Leather
No intentional use
1000 mg/kg
Polymers (R,F,A)
No intentional use
1000 mg/kg
|
LC/MS, LC/DAD | ||
| Despite the advancement in alternative approaches, there are some footwear processes and products where the use of ADCA is prevalent. ZDHC acknowledges that it will take time to phase out ADCA from these processes. ZDHC guidance is to avoid deliberate use wherever possible and, where it is used, ensure that exposure of workers is minimised and emissions are controlled with proper measures | |||||
Potential Uses
Azo dyes and pigments are colourants that incorporate one or several azo groups (-N=N-) bound with aromatic compounds. Thousands of azo dyes exist, but only those that degrade to form the listed cleavable amines are restricted. Azo dyes that release these amines are regulated and should no longer be used for dyeing of textiles or leather.
The four substances listed below highlighted with an asterisk are salts.
| Substance | CASNO |
Applicability
Supplier Guidance
Formulation Limit
|
General Techniques for Analysing Chemicals | Guidance Sheet |
|---|---|---|---|---|
| 4-Aminoazobenzene | 60-09-3 |
Textile
No intentional use
150 mg/kg
Leather
No intentional use
150 mg/kg
Polymers (R,F,A)
No intentional use
150 mg/kg
|
ISO 14362 | Guidance Sheet |
| o-Aminoazotoluene | 97-56-3 |
Textile
No intentional use
150 mg/kg
Leather
No intentional use
150 mg/kg
Polymers (R,F,A)
No intentional use
150 mg/kg
|
ISO 14362 | Guidance Sheet |
Potential Uses
To make the formulations stable to the effects of UV light or sunlight, UV absorbers are used.
| Substance | CASNO |
Applicability
Supplier Guidance
Formulation Limit
|
General Techniques for Analysing Chemicals | Guidance Sheet |
|---|---|---|---|---|
| 2-Benzotriazol-2-yl-4,6-di-tert-butylphenol (UV-320) |
3846-71-7 |
Textile
No intentional use
1000 mg/kg
Leather
No intentional use
1000 mg/kg
Polymers (R,F,A)
No intentional use
1000 mg/kg
|
Solvent extraction, LC MS/MS, GC MS |
|
| 2,4-Di-tert-butyl-6-(5-chlorobenzotriazole-2-yl) phenol (UV-327) |
3864-99-1 |
Textile
No intentional use
1000 mg/kg
Leather
No intentional use
1000 mg/kg
Polymers (R,F,A)
No intentional use
1000 mg/kg
|
Solvent extraction, LC MS/MS, GC MS |
|
| 2-(2H-benzotriazol-2-yl)-4,6-ditertpentylphenol (UV-328) |
25973-55-1 |
Textile
No intentional use
1000 mg/kg
Leather
No intentional use
1000 mg/kg
Polymers (R,F,A)
No intentional use
1000 mg/kg
|
Solvent extraction, LC MS/MS, GC MS | |
| 2-(2H-benzotriazol-2-yl)-4-(tert-butyl)-6-(sec- butyl) phenol (UV-350) |
36437-37-3 |
Textile
No intentional use
1000 mg/kg
Leather
No intentional use
1000 mg/kg
Polymers (R,F,A)
No intentional use
1000 mg/kg
|
Solvent extraction, LC MS/MS, GC MS |