1.Identification
1.1 GHS Product identifier
| Product name | diborane(6) |
|---|
1.2 Other means of identification
| Product number | - |
|---|---|
| Other names | Diboron hexahydride |
1.3 Recommended use of the chemical and restrictions on use
| Identified uses | For industry use only. |
|---|---|
| Uses advised against | no data available |
1.4 Supplier's details
| Company | MOLBASE (Shanghai) Biotechnology Co., Ltd. |
|---|---|
| Address | Floor 4 & 5, Building 12, No. 1001 North Qinzhou Road, Xuhui District, Shanghai, China |
| Telephone | +86(21)64956998 |
| Fax | +86(21)54365166 |
1.5 Emergency phone number
| Emergency phone number | +86-400-6021-666 |
|---|---|
| Service hours | Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours). |
2.Hazard identification
2.1 Classification of the substance or mixture
Flammable gases, Category 1
Gases under pressure: Liquefied gas
Acute toxicity - Inhalation, Category 1
2.2 GHS label elements, including precautionary statements
| Pictogram(s) |    |
|---|---|
| Signal word | Danger |
| Hazard statement(s) | H220 Extremely flammable gas H280 Contains gas under pressure; may explode if heated H330 Fatal if inhaled |
| Precautionary statement(s) | |
| Prevention | P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking. P260 Do not breathe dust/fume/gas/mist/vapours/spray. P271 Use only outdoors or in a well-ventilated area. P284 [In case of inadequate ventilation] wear respiratory protection. |
| Response | P377 Leaking gas fire: Do not extinguish, unless leak can be stopped safely. P381 In case of leakage, eliminate all ignition sources. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P310 Immediately call a POISON CENTER/doctor/… P320 Specific treatment is urgent (see ... on this label). |
| Storage | P403 Store in a well-ventilated place. P410+P403 Protect from sunlight. Store in a well-ventilated place. P403+P233 Store in a well-ventilated place. Keep container tightly closed. |
| Disposal | P501 Dispose of contents/container to ... |
2.3 Other hazards which do not result in classification
none
3.Composition/information on ingredients
3.1 Substances
| Chemical name | Common names and synonyms | CAS number | EC number | Concentration |
|---|---|---|---|---|
| diborane(6) | diborane(6) | 19287-45-7 | none | 100% |
4.First-aid measures
4.1 Description of necessary first-aid measures
General advice
Consult a physician. Show this safety data sheet to the doctor in attendance.
If inhaled
Fresh air, rest. Half-upright position. Artificial respiration may be needed. Refer for medical attention.
In case of skin contact
ON FROSTBITE: rinse with plenty of water, do NOT remove clothes. Refer for medical attention .
In case of eye contact
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
If swallowed
Never give anything by mouth to an unconscious person. Rinse mouth with water. Consult a physician.
4.2 Most important symptoms/effects, acute and delayed
Boranes are highly toxic by inhalation, skin absorption or ingestion. They may produce acute or chronic poisoning. Diborane is an irritant to the lungs and kidneys. The primary effect of diborane poisoning is lung congestion caused by local tissue irritation produced by the exothermic reaction of hydrolysis. (EPA, 1998)
4.3 Indication of immediate medical attention and special treatment needed, if necessary
Maintain an open airway and assist ventilation if nescessary. treat coma, seizures, hypotension, and renal failure if they occur. There is no specific antidote. Administer activated charcoal (although boric acid is not well absorbed). Consider gastric lavage for large ingestions. /Boric acid, Borates, and Boron/
5.Fire-fighting measures
5.1 Extinguishing media
Suitable extinguishing media
Do not use halocarbons. Use fine spray or fog to control fire by preventing its spread and absorbing some of its heat. Stop flow of gas before extinguishing fire. Liquid nitrogen may be effective for cooling and extinguishing diborane fires. Use water spray to deep fire-exposed containers cool. Explosive decomposition may occur under fire conditions. Fight fire from protected location or maximum possible distance. Approach fire from upwind to avoid hazardous vapors.
5.2 Specific hazards arising from the chemical
It will ignite spontaneously in moist air at room temperature. Also, it reacts violently with vaporizing liquid-type extinguishing agents. It hydrolyzes in water to hydrogen and boric acid. Incompatible with air, halogenated compounds, aluminum, lithium, active metals, oxidized surfaces, chlorine, fuming nitric acid, nitrogen trifluoride, oxygen, and phosphorus trifluoride. Avoid moist air, electrical sparks, open flames or any other heat source. Hazardous polymerization may occur. (EPA, 1998)
5.3 Special protective actions for fire-fighters
Wear self-contained breathing apparatus for firefighting if necessary.
6.Accidental release measures
6.1 Personal precautions, protective equipment and emergency procedures
Use personal protective equipment. Avoid dust formation. Avoid breathing vapours, mist or gas. Ensure adequate ventilation. Evacuate personnel to safe areas. Avoid breathing dust. For personal protection see section 8.
6.2 Environmental precautions
Evacuate danger area! Consult an expert! Personal protection: complete protective clothing including self-contained breathing apparatus. Ventilation. Remove all ignition sources. Turn off gas at source if possible.
6.3 Methods and materials for containment and cleaning up
Evacuate danger area! Consult an expert! Ventilation. Stop flow of gas. Spilled liquid has very low temperature and evaporates quickly (extra personal protection: complete protective clothing including self-contained breathing apparatus).
7.Handling and storage
7.1 Precautions for safe handling
Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Avoid exposure - obtain special instructions before use.Provide appropriate exhaust ventilation at places where dust is formed. For precautions see section 2.2.
7.2 Conditions for safe storage, including any incompatibilities
Fireproof. Separated from strong oxidants, food and feedstuffs and water. Cool. Ventilation along the floor and ceiling. Dry.Store in a cool, dry, well-ventilated location. Isolate from air, moisture, halogens, alkali metals, aluminum, and rust. Outside or detached storage is preferred. Normally refrigerated.
8.Exposure controls/personal protection
8.1 Control parameters
Occupational Exposure limit values
Recommended Exposure Limit: 10 Hr Time-Weighted Avg: 0.1 ppm (0.1 mg/cu m).
Biological limit values
no data available
8.2 Appropriate engineering controls
Handle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and at the end of workday.
8.3 Individual protection measures, such as personal protective equipment (PPE)
Eye/face protection
Safety glasses with side-shields conforming to EN166. Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU).
Skin protection
Wear impervious clothing. The type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace. Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique(without touching glove's outer surface) to avoid skin contact with this product. Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices. Wash and dry hands. The selected protective gloves have to satisfy the specifications of EU Directive 89/686/EEC and the standard EN 374 derived from it.
Respiratory protection
Wear dust mask when handling large quantities.
Thermal hazards
no data available
9.Physical and chemical properties
| Physical state | Diborane is a colorless gas with an offensive odor. It is toxic by inhalation. Diborane is decomposed by water giving off hydrogen, another flammable gas and boric acid a non-regulated material. Its vapors are heavier than air. Long term exposure to low concentrations or short term exposure to high concentrations can result in adverse health effects from inhalation. It is used in electronics. Rate of onset: Immediate Persistence: Minutes to hours Odor threshold: 2.5 ppm Source/use/other hazard: Intermediate chemical manufacturing; very flammable. |
|---|---|
| Colour | Colorless gas |
| Odour | Repulsively, sickly-sweet odor |
| Melting point/ freezing point | -165°C |
| Boiling point or initial boiling point and boiling range | 72-74 °C15 mm Hg(lit.) |
| Flammability | Flammable GasExtremely flammable. |
| Lower and upper explosion limit / flammability limit | 0.8% LOWER and 88% UPPER /table/ |
| Flash point | 170 °F |
| Auto-ignition temperature | 100 to 52.22°C |
| Decomposition temperature | no data available |
| pH | no data available |
| Kinematic viscosity | Gas: 0.00785 mPa.s at 101.325 kPa at 10°C. Liquid: 0.177 mPa.s at -109.2°C. |
| Solubility | Decomposes |
| Partition coefficient n-octanol/water (log value) | no data available |
| Vapour pressure | 224 mm Hg at -76.44°C (EPA, 1998) |
| Density and/or relative density | 1.157 g/mL at 25 °C(lit.) |
| Relative vapour density | 1 (EPA, 1998) (Relative to Air) |
| Particle characteristics | no data available |
10.Stability and reactivity
10.1 Reactivity
no data available
10.2 Chemical stability
Conditions contributing to instability: Temperatures above -18°C (0 deg F).
10.3 Possibility of hazardous reactions
Flammable gas. Evolves hydrogen and ignites on contact with water or moist air. Pyrophoric; may ignite spontaneously on exposure to air. May accumulate then explode in air without a source of ignition.The gas mixes well with air, explosive mixtures are easily formed.It is a colorless, air and moisture-sensitive gas, highly toxic. It ignites in air. It is very explosive when exposed to heat or flame, on contact with moisture it produces hydrogen gas. Explosive reaction with benzene vapor, chlorine, nitric acid and tetravinyllead [Bretherick, 5th ed., 1995, p. 77]. Explosive reaction with dimethyl sulfoxide [Shriver, 1969, p. 209], violent reaction with halocarbon liquids used as fire extinguishants (e.g., carbon tetrachloride). Reaction with Al or Li produces complex hydrides that may ignite spontaneously in air [Haz. Chem. Data, 1975, p. 114].
10.4 Conditions to avoid
no data available
10.5 Incompatible materials
A violent explosion occurred when carbon tetrachloride was used on a borane fire.
10.6 Hazardous decomposition products
Heat can cause /diborane/ to decompose violently ...
11.Toxicological information
Acute toxicity
- Oral: no data available
- Inhalation: LC50 Rat inhalation 40 or 80 ppm/4 hr (Depends on age of animals)
- Dermal: no data available
Skin corrosion/irritation
no data available
Serious eye damage/irritation
no data available
Respiratory or skin sensitization
no data available
Germ cell mutagenicity
no data available
Carcinogenicity
no data available
Reproductive toxicity
no data available
STOT-single exposure
no data available
STOT-repeated exposure
no data available
Aspiration hazard
no data available
12.Ecological information
12.1 Toxicity
- Toxicity to fish: no data available
- Toxicity to daphnia and other aquatic invertebrates: no data available
- Toxicity to algae: no data available
- Toxicity to microorganisms: no data available
12.2 Persistence and degradability
no data available
12.3 Bioaccumulative potential
no data available
12.4 Mobility in soil
no data available
12.5 Other adverse effects
no data available
13.Disposal considerations
13.1 Disposal methods
Product
The material can be disposed of by removal to a licensed chemical destruction plant or by controlled incineration with flue gas scrubbing. Do not contaminate water, foodstuffs, feed or seed by storage or disposal. Do not discharge to sewer systems.
Contaminated packaging
Containers can be triply rinsed (or equivalent) and offered for recycling or reconditioning. Alternatively, the packaging can be punctured to make it unusable for other purposes and then be disposed of in a sanitary landfill. Controlled incineration with flue gas scrubbing is possible for combustible packaging materials.
14.Transport information
14.1 UN Number
| ADR/RID: UN1228 | IMDG: UN1228 | IATA: UN1228 |
14.2 UN Proper Shipping Name
| ADR/RID: MERCAPTANS, LIQUID, FLAMMABLE, TOXIC, N.O.S. or MERCAPTAN MIXTURE, LIQUID, FLAMMABLE, TOXIC, N.O.S. |
| IMDG: MERCAPTANS, LIQUID, FLAMMABLE, TOXIC, N.O.S. or MERCAPTAN MIXTURE, LIQUID, FLAMMABLE, TOXIC, N.O.S. |
| IATA: MERCAPTANS, LIQUID, FLAMMABLE, TOXIC, N.O.S. or MERCAPTAN MIXTURE, LIQUID, FLAMMABLE, TOXIC, N.O.S. |
14.3 Transport hazard class(es)
| ADR/RID: 6.1 | IMDG: 6.1 | IATA: 6.1 |
14.4 Packing group, if applicable
| ADR/RID: III | IMDG: III | IATA: III |
14.5 Environmental hazards
| ADR/RID: no | IMDG: no | IATA: no |
14.6 Special precautions for user
no data available
14.7 Transport in bulk according to Annex II of MARPOL 73/78 and the IBC Code
no data available
15.Regulatory information
15.1 Safety, health and environmental regulations specific for the product in question
| Chemical name | Common names and synonyms | CAS number | EC number |
|---|---|---|---|
| diborane(6) | diborane(6) | 19287-45-7 | none |
| European Inventory of Existing Commercial Chemical Substances (EINECS) | Listed. | ||
| EC Inventory | Listed. | ||
| United States Toxic Substances Control Act (TSCA) Inventory | Listed. | ||
| China Catalog of Hazardous chemicals 2015 | Listed. | ||
| New Zealand Inventory of Chemicals (NZIoC) | Listed. | ||
| Philippines Inventory of Chemicals and Chemical Substances (PICCS) | Listed. | ||
| Vietnam National Chemical Inventory | Not Listed. | ||
| Chinese Chemical Inventory of Existing Chemical Substances (China IECSC) | Listed. | ||
16.Other information
Information on revision
| Creation Date | Aug 17, 2017 |
|---|---|
| Revision Date | Aug 17, 2017 |
Abbreviations and acronyms
- CAS: Chemical Abstracts Service
- ADR: European Agreement concerning the International Carriage of Dangerous Goods by Road
- RID: Regulation concerning the International Carriage of Dangerous Goods by Rail
- IMDG: International Maritime Dangerous Goods
- IATA: International Air Transportation Association
- TWA: Time Weighted Average
- STEL: Short term exposure limit
- LC50: Lethal Concentration 50%
- LD50: Lethal Dose 50%
- EC50: Effective Concentration 50%
References
- IPCS - The International Chemical Safety Cards (ICSC), website: http://www.ilo.org/dyn/icsc/showcard.home
- HSDB - Hazardous Substances Data Bank, website: https://toxnet.nlm.nih.gov/newtoxnet/hsdb.htm
- IARC - International Agency for Research on Cancer, website: http://www.iarc.fr/
- eChemPortal - The Global Portal to Information on Chemical Substances by OECD, website: http://www.echemportal.org/echemportal/index?pageID=0&request_locale=en
- CAMEO Chemicals, website: http://cameochemicals.noaa.gov/search/simple
- ChemIDplus, website: http://chem.sis.nlm.nih.gov/chemidplus/chemidlite.jsp
- ERG - Emergency Response Guidebook by U.S. Department of Transportation, website: http://www.phmsa.dot.gov/hazmat/library/erg
- Germany GESTIS-database on hazard substance, website: http://www.dguv.de/ifa/gestis/gestis-stoffdatenbank/index-2.jsp
- ECHA - European Chemicals Agency, website: https://echa.europa.eu/
