Zinc oxide (EC 215-222-5)
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Substance description/characteristics

  1. Name and other identifiers of the substance:

The substance zinc oxide is a mono constituent substance (origin: inorganic)

The following public name is used: zinc oxide

Substance identity:
EC number: 215-222-5
EC name: zinc oxide
CAS number (EC inventory): 1314-13-2
IUPAC name: oxozinc
Annex I index number: 030-013-00-7
Molecular formula: OZn
Molecular weight range: 81.4084
  1. Composition of the substance
    1. Name: zinc oxide standard

Description: typical grade with low level impurities, hexagonal crystalline structure

Degree of purity: > 97.0 — < 100.0 % (w/w)

Constituents
Constituent Typical concentration Concentration range Remarks

zinc oxide

EC no.: 215-222-5

ca. 99.8 % (w/w) > 97.0 — < 100.0 % (w/w) hexagonale crystalline structure

 

Impurities
Impurities Typical concentration Concentration range Remarks

Carbonic acid, zinc salt, basic

EC no.: 257-467-0

< 0.1 % (w/w)  >= 0.0 — < 3.0 % (w/w)  
  1. Name: zinc oxide lower grade

Description: some impurities may trigger classification

Degree of purity: > 90.0 — < 99.7 % (w/w)

Constituents
Constituent Typical concentration Concentration range Remarks

zinc oxide

EC no.: 215-222-5

ca. 95.0 % (w/w) > 89.5 — < 99.7 % (w/w) hexagonal crystalline structure

 

Impurities
Impurities Typical concentration Concentration range Remarks

lead monoxide

EC no.: 215-267-0
>= 0.3 % (w/w) >= 0.3 — < 7.0% (w/w) Impurity is relevant for C&L of the substance.

Carbonic acid,zinc salt,basic

EC no.: 257-467-0

< 0.1 % (w/w)  >= 0.0 — < 3.0 % (w/w)  
  1. Zinc oxide nano

Description: zinc oxide in nano dimension with hexagonal crystalline structure (not manufactured by Lead Registrant)

Degree of purity: c.a 100% (w/w)

Constituents
Constituent Typical concentration Concentration range Remarks
Zinc oxide EC no: 215-222-5 c.a 100% (w/w) > 99.5% - < 100% (w/w)  

D. Zinc oxide nano surface treated with silanes for Cosmetic application

Description: zinc oxide in nano form treated with triethoxycaprylylsilane, dimethoxydiphenylsilanetriethoxycaprylylsilane cross-polymer, octyl triethoxy silane for cosmetic use. Further referred to as coated COS (not manufactured by Lead Registrant).

Degree of purity: >=96.0 — <= 100.0% (w/w)

Constituents

Constituent Typical concentration Concentration range Remarks
zinc oxide EC no: 215-222-5 >= 96.0% (w/w) >= 96.0 — <100.0% (w/w) hexagonal crystalline structure

 

Impurities

Impurity  Typical concentration Concentration range Remarks

triethoxyoctylsilane

EC no: 220-941-2

<=4.0% (w/w)

>=0.0 — <=4.0% (w/w)

Surface treating agent intentionally added as binding agent and emulsifier

E. Zinc oxide nano surface treated with silanes for Food Contact Material

Description: Referred therefater as "coated FCM" -(not manufactured by Lead Registrant)

Degree of purity: >=98.0— <=100.0%(w/w)

Constituents

Constituent Typical concentration Concentration range Remarks
Zinc oxide EC no: 215-222-5  ca.99.5% (w/w) >=98.0 — <100.0% (w/w) hexagonal crystalline structure

 

Impurities

Impurity Typical concentration Concentration range Remarks
3-trimethoxysilylpropylmethacrylate EC no:219-785-8 <=2.0% (w/w) >0.0— <=2.0%(w/w) Surface treating agent intentionally added as coupling agent

 

 

  1. Classification

Please download classification information from document at the bottom of the page. Zinc oxide was in annex I of the old DSD 67/538/EC legislation and has been taken over in the annex VI of CLP 1272/2008/EC. Classification for environment has been revised according to the new criteria of 2nd ATP of CLP. An additional entry for zinc oxide nano was added.
 

 

Classification includes Zinc oxide standard, zinc oxide lower grade and zinc oxide nano. This document mentions ONLY the endpoints for which the substance, in its differents forms, is classified
(Size : 0.05 MB)
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