1.Identification
1.1 GHS Product identifier
| Product name | hafnium atom |
|---|
1.2 Other means of identification
| Product number | - |
|---|---|
| Other names | celtium |
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
1.5 Emergency phone number
| Emergency phone number | - |
|---|---|
| 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
Pyrophoric solids, Category 1
2.2 GHS label elements, including precautionary statements
| Pictogram(s) |  |
|---|---|
| Signal word | Danger |
| Hazard statement(s) | H250 Catches fire spontaneously if exposed to air |
| Precautionary statement(s) | |
| Prevention | P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking. P222 Do not allow contact with air. P231+P232 Handle and store contents under inert gas/.... Protect from moisture. P233 Keep container tightly closed. P280 Wear protective gloves/protective clothing/eye protection/face protection. |
| Response | P302+P335+P334 IF ON SKIN: Brush off loose particles from skin. Immerse in cool water [or wrap in wet bandages]. P370+P378 In case of fire: Use ... to extinguish. |
| Storage | none |
| Disposal | none |
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 |
|---|---|---|---|---|
| hafnium atom | hafnium atom | 7440-58-6 | 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.
In case of skin contact
Rinse contaminated clothes (fire hazard) with plenty of water. Remove contaminated clothes. Rinse and then wash skin with water and soap.
In case of eye contact
Rinse with plenty of water (remove contact lenses if easily possible).
If swallowed
Rinse mouth.
4.2 Most important symptoms/effects, acute and delayed
Excerpt from ERG Guide 135 [Substances - Spontaneously Combustible]: Fire will produce irritating, corrosive and/or toxic gases. Inhalation of decomposition products may cause severe injury or death. Contact with substance may cause severe burns to skin and eyes. Runoff from fire control may cause pollution. (ERG, 2016)
4.3 Indication of immediate medical attention and special treatment needed, if necessary
Absorption, Distribution and Excretion
Hafnium can be absorbed into the body by inhalation of its aerosol.
5.Fire-fighting measures
5.1 Extinguishing media
Suitable extinguishing media
If material on fire or involved in fire: Use suitable dry powder. ... Use dry chemical or carbon dioxide. ... Use water only if flooding quantities are available. /Hafnium powder, dry/
5.2 Specific hazards arising from the chemical
Excerpt from ERG Guide 135 [Substances - Spontaneously Combustible]: Flammable/combustible material. May ignite on contact with moist air or moisture. May burn rapidly with flare-burning effect. Some react vigorously or explosively on contact with water. Some may decompose explosively when heated or involved in a fire. May re-ignite after fire is extinguished. Runoff may create fire or explosion hazard. Containers may explode when heated. (ERG, 2016)
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
Remove all ignition sources. Evacuate danger area! Consult an expert! Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Wet powder to prevent dusting and ignition. Sweep spilled substance into covered water-filled containers. Then store and dispose of according to local regulations. Do NOT wash away into sewer. Do NOT absorb in saw-dust or other combustible absorbents.
6.3 Methods and materials for containment and cleaning up
Persons not wearing protective equipment and clothing should be restricted from areas of spills until cleanup has been completed. 1. Ventilate area of spill. 2. Collect spilled material in most convenient and safe manner and deposit in sealed containers for reclamation, or for disposal in secured sanitary landfill. Liq containing hafnium...should be absorbed in vermiculite, dry sand, earth, or similar material.
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, strong acids and halogens. Keep under inert gas. Store only in original container.Storage: Store hafnium in a fireproof area. Keep it separate from strong oxidizing agents, strong bases, halogens, phosphorus, and sulfur. Keep stored under water.
8.Exposure controls/personal protection
8.1 Control parameters
Occupational Exposure limit values
Recommended Exposure Limit: 10 Hr Time-Weighted Avg: 0.5 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 | wire |
|---|---|
| Colour | Gray crystals |
| Odour | no data available |
| Melting point/ freezing point | 2227oC(lit.) |
| Boiling point or initial boiling point and boiling range | 4602°C(lit.) |
| Flammability | Explosive in powder form (either dry or with <25% water); finely divided powder can be ignited by static electricity or even SPONTANEOUSLY.Flammable. See Chemical dangers |
| Lower and upper explosion limit / flammability limit | no data available |
| Flash point | no data available |
| Auto-ignition temperature | 20°C for dust cloud |
| Decomposition temperature | no data available |
| pH | no data available |
| Kinematic viscosity | no data available |
| Solubility | Insoluble (NIOSH, 2016) |
| Partition coefficient n-octanol/water (log value) | no data available |
| Vapour pressure | 0 mm Hg (approx) (NIOSH, 2016) |
| Density and/or relative density | 13.3g/cm3(lit.) |
| Relative vapour density | no data available |
| Particle characteristics | no data available |
10.Stability and reactivity
10.1 Reactivity
no data available
10.2 Chemical stability
Stable under recommended storage conditions.
10.3 Possibility of hazardous reactions
The substance may spontaneously ignite on contact with air and at higher temperatures with nitrogen, phosphorous and sulphur. /Hafnium powder, wet or dry/Dust explosion possible if in powder or granular form, mixed with air.Metals, such as HAFNIUM METAL(reactivity similar to zirconium), are reducing agents and tend to react with oxidizing agents. Their reactivity is strongly influenced by their state of subdivision: in bulk they often resist chemical combination; in powdered form they may react very rapidly. Thus, as a bulk metal it is somewhat unreactive, but finely divided material may be pyrophoric. The metal reacts exothermically with compounds having active hydrogen atoms (such as acids and water) to form flammable hydrogen gas and caustic products. The reactions are less vigorous than the similar reactions of alkali metals, but the released heat can still ignite the released hydrogen. Materials in this group may react with azo/diazo compounds to form explosive products. These metals and the products of their corrosion by air and water can catalyze polymerization reactions in several classes of organic compounds; these polymerizations sometimes proceed rapidly or even explosively. Some metals in this group form explosive products with halogenated hydrocarbons.
10.4 Conditions to avoid
no data available
10.5 Incompatible materials
Although /hafnium/ is relatively inert, when powdered it becomes very reactive. The dry powder may react explosively at elevated temperatures with nitrogen, phosphorus, oxygen, sulfur and other non-metals. The halogens react similarly, and in contact with hot concentrated nitric acid and other oxidants it may explode (often after a delay with nitric acid). The powder is pyrophoric and readily ignitable by friction, heat or static sparks, and if dry burns fiercely. Presence of water (5-10%) slightly reduces the ease of ignition, but combustion of the damp powder proceeds explosively (the oxygen content of water, 89%, being much higher than that of air).
10.6 Hazardous decomposition products
May explosively decompose on shock, friction, or concussion. /Hafnium powder/
11.Toxicological information
Acute toxicity
- Oral: no data available
- Inhalation: no data available
- 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: Not dangerous goods. | IMDG: Not dangerous goods. | IATA: Not dangerous goods. |
14.2 UN Proper Shipping Name
| ADR/RID: unknown |
| IMDG: unknown |
| IATA: unknown |
14.3 Transport hazard class(es)
| ADR/RID: Not dangerous goods. | IMDG: Not dangerous goods. | IATA: Not dangerous goods. |
14.4 Packing group, if applicable
| ADR/RID: Not dangerous goods. | IMDG: Not dangerous goods. | IATA: Not dangerous goods. |
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 |
|---|---|---|---|
| hafnium atom | hafnium atom | 7440-58-6 | 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) | Not Listed. | ||
| Philippines Inventory of Chemicals and Chemical Substances (PICCS) | Listed. | ||
| Vietnam National Chemical Inventory | Listed. | ||
| Chinese Chemical Inventory of Existing Chemical Substances (China IECSC) | Not Listed. | ||
16.Other information
Information on revision
| Creation Date | Aug 16, 2017 |
|---|---|
| Revision Date | Aug 16, 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/
