GHS Classification Result

Chemical Name:Diboron trioxide
CAS:1303-86-2

Result:
ID: 743
Classifier: Inter-ministerial Committee on GHS
Year Classified: FY2006
Reference Manual: GHS Classification Manual (10 Feb, 2006)

PHYSICAL HAZARDS
Hazard class Classification Symbol Signal word Hazard statement Precautionary statement Rationale for the classification
1 Explosives Not applicable - - - - There are no chemical groups associated with explosive properties present in the molecules.
2 Flammable gases (including chemically unstable gases) Not applicable - - - - Solid (GHS definition)
3 Aerosols Not applicable - - - - Not aerosol products
4 Oxidizing gases Not applicable - - - - Solid (GHS definition)
5 Gases under pressure Not applicable - - - - Solid (GHS definition)
6 Flammable liquids Not applicable - - - - Solid (GHS definition)
7 Flammable solids Not classified - - - - Non-combustible (ICSC (1996), HSDB (2005))
8 Self-reactive substances and mixtures Not applicable - - - - There are no chemical groups associated with explosive or self-reactive properties present in the molecule.
9 Pyrophoric liquids Not applicable - - - - Solid (GHS definition)
10 Pyrophoric solids Not classified - - - - Non-combustible (ICSC, 1996; HSDB, 2005)
11 Self-heating substances and mixtures Not classified - - - - Not combustible. (ICSC (1996), HSDB (2005))
12 Substances and mixtures which, in contact with water, emit flammable gases Not classified - - - - Known not to cause a serious reaction with water. (HSDB, 2005; etc.)
13 Oxidizing liquids Not applicable - - - - Solid (GHS definition)
14 Oxidizing solids Classification not possible - - - - No data available
15 Organic peroxides Not applicable - - - - Inorganic substance
16 Corrosive to metals Classification not possible - - - - Test methods applicable to solid substances are not available.

HEALTH HAZARDS
Hazard class Classification Symbol Signal word Hazard statement Precautionary statement Rationale for the classification
1 Acute toxicity (Oral) Category 5 - Warning H303: May be harmful if swallowed P312: Call a POISON CENTER or doctor/physician if you feel unwell. SPECIES: Rat ENDPOINT: LD50 VALUE: 3150 mg/kg REFERENCE SOURCE: RTECS (2004)
1 Acute toxicity (Dermal) Classification not possible - - - - No data available
1 Acute toxicity (Inhalation: Gases) Not applicable - - - - Solid (GHS definition)
1 Acute toxicity (Inhalation: Vapours) Classification not possible - - - - No data available
1 Acute toxicity (Inhalation: Dusts and mists) Classification not possible - - - - Since most vapor pressure of this product can be disregarded, it is thought that the inhalation study was done with the dust. There was no study in which LC50 was obtained. So data was insufficient, it cannot be classified.
2 Skin corrosion/irritation Category 3 - Warning H316: Causes mild skin irritation P332+P313: If skin irritation occurs: Get medical advice/attention. It was classified as Category 3 based on the statements that erythema emerged on rabbit and disappeared several days afterward (ACGIH (2001)) and that it stimulates the human skin (ICSC (J) (1996)).
3 Serious eye damage/eye irritation Category 2A-2B Warning H319: Causes serious eye irritation P305+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P337+P313: If eye irritation persists: Get medical advice/attention.
P264: Wash ... thoroughly after handling.
P280: Wear protective gloves/protective clothing/eye protection/face protection.
Based on statements that conjunctivitis was produced for the animal (ACGIH (2001)), and that an eye was stimulated (ACGIH and (2001), (ICSC (J), (1996)) and redness and pains were produced (ICSC (J), (1996)) in human, it was set as Category 2A-2B.
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 - - - - No data available
6 Carcinogenicity Classification not possible - - - - No data available
7 Reproductive toxicity Classification not possible - - - - No data available
8 Specific target organ toxicity - Single exposure Category 3 (Respiratory tract irritation) Warning H335: May cause respiratory irritation (respiratory tract irritation) P304+P340: IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing.
P403+P233: Store in a well-ventilated place. Keep container tightly closed.
P261: Avoid breathing dust/fume/gas/mist/vapours/spray.
P271: Use only outdoors or in a well-ventilated area.
P312: Call a POISON CENTER or doctor/physician if you feel unwell.
P405: Store locked up.
P501: Dispose of contents/container to ...
The symptom which indicates respiratory irritation, such as a irritation of nose and throat, a cough, stuffiness, and a throat pain in humans (ACGIH (2001), ECETOC TR63 (1995), ICSC (J) (1996), and HSDB (2005)), and it is classified into Category 3 (respiratory irritation).
9 Specific target organ toxicity - Repeated exposure Classification not possible - - - - Classification not possible due to lack of data
10 Aspiration hazard Classification not possible - - - - No data available

ENVIRONMENTAL HAZARDS
Hazard class Classification Symbol Signal word Hazard statement Precautionary statement Rationale for the classification
11 Hazardous to the aquatic environment (Acute) Not classified - - - - It carried out the outside of Category from 48-hour EC50=370-490mg/L (diboron trioxide concentration equivalent: 2382-3155 mg/L) of Crustacea (Daphnia magna) (IUCLID, 2000).
11 Hazardous to the aquatic environment (Long-term) Not classified - - - - Since not water-insoluble (aqueous solubility =27700 mg/L (HSDB, 2004)) and acute toxicity is low.


NOTE:
* Classification was conducted by relevant Japanese Ministries in accordance with GHS Classification Guidance for the Japanese Government, and is intended to provide a reference for preparing GHS labelling and SDS for users.
* This is a provisional English translation of classification results and is subject to revision without notice.
* The responsibility for any resulting GHS labelling and SDS referenced from this site is with users.

Reference:
Reference Manual

Definitions / Abbreviations

Model SDS by MHLW

MHLW Website (in Japanese Only)


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