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Administrative data

Workers - Hazard via inhalation route

Systemic effects

Long term exposure
Hazard assessment conclusion:
no hazard identified
Acute/short term exposure
Hazard assessment conclusion:
no hazard identified
DNEL related information

Local effects

Long term exposure
Hazard assessment conclusion:
DNEL (Derived No Effect Level)
Value:
6.2 mg/m³
Acute/short term exposure
Hazard assessment conclusion:
DNEL (Derived No Effect Level)
Value:
13.4 mg/m³
DNEL related information

Workers - Hazard via dermal route

Systemic effects

Long term exposure
Hazard assessment conclusion:
no hazard identified
Acute/short term exposure
Hazard assessment conclusion:
no hazard identified
DNEL related information

Local effects

Long term exposure
Hazard assessment conclusion:
no hazard identified
Acute/short term exposure
Hazard assessment conclusion:
no hazard identified

Workers - Hazard for the eyes

Local effects

Hazard assessment conclusion:
medium hazard (no threshold derived)

Additional information - workers

The DNELs for local inhalation effects are based on the corresponding DNELs that are available for hydrogen peroxide, taking into account that:

a) according to the stoichiometry of the hydrolysis reaction of magnesium peroxide, an equimolar amount of hydrogen peroxide is formed; and that

b) the reaction mass of magnesium carbonate and magnesium hydroxide and magnesium oxide and magnesium peroxide typically contains 37% of magnesium peroxide.

 

Worker – inhalation – local effects – long term

 

DNEL (hydrogen peroxide):                      1.4 mg/m3

 

a) stoichiometrie

 

1.4 mg hydrogen peroxide                        = 4.116E-05 mol hydrogen peroxide

= 4.116E-05 mol magnesium peroxide

 

4.116E-05 mol magnesium peroxide          = 2.3 mg magnesium peroxide

 

DNEL (magnesium peroxide)                    = 2.3 mg/m3

 

b) composition of reaction mass

 

DNEL (magnesium peroxide)                    = 2.3 mg/m3

DNEL (reaction mass)                             = 6.2 mg/m3

 

The worker long-term DNEL for local effects following inhalation of the reaction mass of magnesium carbonate and magnesium hydroxide and magnesium oxide and magnesium peroxide is:

 

DNEL (reaction mass)                             = 6.2 mg/m3

 

 

Worker – inhalation – local effects – short term

 

DNEL (hydrogen peroxide):                      3.0 mg/m3

 

a) stoichiometrie

 

3.0 mg hydrogen peroxide                        = 8.821E-05 mol hydrogen peroxide

= 8.821E-05 mol magnesium peroxide

 

8.821E-05 mol magnesium peroxide          = 5.00 mg magnesium peroxide

 

DNEL (magnesium peroxide)                    = 5.00 mg/m3

 

b) composition of reaction mass

 

DNEL (magnesium peroxide)                    = 5.00 mg/m3

DNEL (reaction mass)                             = 13.4 mg/m3

 

The worker short-term DNEL for local effects following inhalation of the reaction mass of magnesium carbonate and magnesium hydroxide and magnesium oxide and magnesium peroxide therefore is:

 

DNEL (reaction mass)                             = 13.4 mg/m3

General Population - Hazard via inhalation route

Systemic effects

Long term exposure
Hazard assessment conclusion:
no hazard identified
Acute/short term exposure
Hazard assessment conclusion:
no hazard identified
DNEL related information

Local effects

Long term exposure
Hazard assessment conclusion:
DNEL (Derived No Effect Level)
Value:
0.94 mg/m³
Acute/short term exposure
Hazard assessment conclusion:
DNEL (Derived No Effect Level)
Value:
8.63 mg/m³
DNEL related information

General Population - Hazard via dermal route

Systemic effects

Long term exposure
Hazard assessment conclusion:
no hazard identified
Acute/short term exposure
Hazard assessment conclusion:
no hazard identified
DNEL related information

Local effects

Long term exposure
Hazard assessment conclusion:
no hazard identified
Acute/short term exposure
Hazard assessment conclusion:
no hazard identified

General Population - Hazard via oral route

Systemic effects

Long term exposure
Hazard assessment conclusion:
no hazard identified
Acute/short term exposure
Hazard assessment conclusion:
no hazard identified
DNEL related information

General Population - Hazard for the eyes

Local effects

Hazard assessment conclusion:
medium hazard (no threshold derived)

Additional information - General Population

The DNELs for local inhalation effects are based on the corresponding DNELs that are available for hydrogen peroxide, taking into account that:

a) according to the stoichiometry of the hydrolysis reaction of magnesium peroxide, an equimolar amount of hydrogen peroxide is formed; and that

b) the reaction mass of magnesium carbonate and magnesium hydroxide and magnesium oxide and magnesium peroxide typically contains 37% of magnesium peroxide.

 

 

General population – inhalation – local effects – long term

 

DNEL (hydrogen peroxide):                     0.21 mg/m3

 

a) stoichiometrie

 

0.21 mg hydrogen peroxide                      = 6.174E-06 mol hydrogen peroxide

= 6.174E-06 mol magnesium peroxide

 

6.174E-06 mol magnesium peroxide          = 0.35 mg magnesium peroxide

 

DNEL (magnesium peroxide)                    = 0.35 mg/m3

 

b) composition of reaction mass

 

DNEL (magnesium peroxide)                    = 0.35 mg/m3

DNEL (reaction mass)                             = 0.94 mg/m3

 

 

The general population long-term DNEL for local effects following inhalation of the reaction mass of magnesium carbonate and magnesium hydroxide and magnesium oxide and magnesium peroxide is:

 

DNEL (reaction mass)                             = 0.94 mg/m3

 

 

General population – inhalation – local effects – short term

 

DNEL (hydrogen peroxide):                      1.93 mg/m3

 

a) stoichiometrie

 

3.0 mg hydrogen peroxide                        = 5.6748E-05 mol hydrogen peroxide

= 5.6748E-05 mol magnesium peroxide

 

5.6748E-05 mol magnesium peroxide         = 3.19 mg magnesium peroxide

 

DNEL (magnesium peroxide)                    = 3.19 mg/m3

 

b) composition of reaction mass

 

DNEL (magnesium peroxide)                    = 3.19 mg/m3

DNEL (reaction mass)                             = 8.63 mg/m3

 

The general population short-term DNEL for local effects following inhalation of the reaction mass of magnesium carbonate and magnesium hydroxide and magnesium oxide and magnesium peroxide is:

 

DNEL (reaction mass)                             = 8.63 mg/m3