Hazard class
|
Classification
|
Symbol
|
Signal word
|
Hazard statement
|
Precautionary statement
|
Rationale for the classification
|
1
|
Acute toxicity (Oral)
|
Classification not possible
|
-
|
-
|
-
|
-
|
No data available.
[For health hazards, refer also to hydrogen fluoride since it can react with water to produce hydrogen fluoride.]
|
1
|
Acute toxicity (Dermal)
|
Classification not possible
|
-
|
-
|
-
|
-
|
No data available.
[For health hazards, refer also to hydrogen fluoride since the substance can react with water to produce hydrogen fluoride.]
|
1
|
Acute toxicity (Inhalation: Gases)
|
Classification not possible
|
-
|
-
|
-
|
-
|
Although a LC50 value of 2272 ppm for rats (RTECS (2009), original literature: Journal of Toxicological Sciences vol. 18,394 (1993)), classification was not possible since the exposure period was not clear.
[For health hazards, refer also to hydrogen fluoride since it can react with water to produce hydrogen fluoride.]
[Since it can react with water to produce hydrogen fluoride, refer to hydrogen fluoride for health hazards.]
|
1
|
Acute toxicity (Inhalation: Vapours)
|
Not applicable
|
-
|
-
|
-
|
-
|
Gas (GHS definition)
|
1
|
Acute toxicity (Inhalation: Dusts and mists)
|
Not applicable
|
-
|
-
|
-
|
-
|
Gas (GHS definition)
|
2
|
Skin corrosion/irritation
|
Classification not possible
|
-
|
-
|
-
|
-
|
No data available. Careful handling of the substance is required based of the following reports: "corrosive for the skin and eye" (ICSC (J) (1997)) and "Silicon tetrafluoride can react with water to produce hydrogen fluoride and cause irritation" (PATTY (5th, 2001)).
|
3
|
Serious eye damage/eye irritation
|
Classification not possible
|
-
|
-
|
-
|
-
|
No data available. As relevant information, careful handling of the substance is required based of the following reports: "corrosive for the skin and eye" (ICSC (J) (1997)) and "Silicon tetrafluoride can react with water to produce hydrogen fluoride and cause irritation" (PATTY (5th, 2001)).
|
4
|
Respiratory sensitization
|
Classification not possible
|
-
|
-
|
-
|
-
|
No data available.
|
4
|
Skin sensitization
|
Classification not possible
|
-
|
-
|
-
|
-
|
No data available.
|
5
|
Germ cell mutagenicity
|
Classification not possible
|
-
|
-
|
-
|
-
|
Classification not possible due to lack of data.
Although there is information from epidemiologic research where incidences of chromosome aberration and micronucleus in peripheral blood were increased in occupational exposure to both hydrofluoric acid and silicon tetrafluoride, the degree of silicon tetrafluoride contribution to the effects is uncertian.
|
6
|
Carcinogenicity
|
Classification not possible
|
-
|
-
|
-
|
-
|
No data available.
|
7
|
Reproductive toxicity
|
Classification not possible
|
-
|
-
|
-
|
-
|
No data available.
|
8
|
Specific target organ toxicity - Single exposure
|
Classification not possible
|
-
|
-
|
-
|
-
|
Classification not possible due to lack of data. As information in RTECS (2006) in List 3, there is a report that pulmonary edema and emphysema were observed in a rat acute toxicity test (inhalation), but the exposure period or details of the test were not clear. In EHC 36 (1984), the substance is reported as a "respiratory tract irritant" and symptoms by inhalation of hydrogen fluoride (HF) are reported. Since silicon tetrafluoride can react with water to produce hydrogen fluoride, careful handling of the substance is required.
|
9
|
Specific target organ toxicity - Repeated exposure
|
Classification not possible
|
-
|
-
|
-
|
-
|
No data available. As relevant information, there is information of skeletal fluorosis associated with the consumption of drinking-water containing fluoride (EHC 227 (2002)). In addition, since silicon tetrafluoride can react with water to produce hydrogen fluoride, careful handling of the substance is required.
|
10
|
Aspiration hazard
|
Not applicable
|
-
|
-
|
-
|
-
|
Gas (GHS definition)
|