Calcium carbide
Product identifier
- Product name: Calcium carbide
- CBnumber: CB5854217
- CAS: 75-20-7
- EINECS Number: 200-848-3
- Synonyms: calcium carbide,CARBIDE
Relevant identified uses of the substance or mixture and uses advised against
- Relevant identified uses: For R&D use only. Not for medicinal, household or other use.
- Uses advised against: none
Company Identification
- Company: Chemicalbook
- Address: Building 1, Huihuang International, Shangdi 10th Street, Haidian District, Beijing
- Telephone: 400-158-6606
Classification of the substance or mixture
Substances and mixtures, which in contact with water, emit flammable gases, Category 1
Label elements
Pictogram(s)
- Signal wordDanger
H260 In contact with water releases flammable gases which may ignite spontaneously
H261 In contact with water releases flammable gas
H315 Causes skin irritation
H318 Causes serious eye damage
H335 May cause respiratory irritation
P223 Keep away from any possible contact with water, because of violent reaction and possible flash fire.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P231+P232 Handle under inert gas. Protect from moisture.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P370+P378 In case of fire: Use … for extinction.
P405 Store locked up.
P422 Store contents under …
P223 Do not allow contact with water.
P231+P232 Handle and store contents under inert gas/....Protect from moisture.
P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/...
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.
P402+P404 Store in a dry place. Store in a closed container.
P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal.
Other hazards
no data available
Substance
- Product name: Calcium carbide
- Synonyms: calcium carbide,CARBIDE
- CAS: 75-20-7
- EC number: 200-848-3
- MF: C2Ca
- MW: 64.1
Description of first aid measures
If inhaledFresh air, rest. Half-upright position. Refer for medical attention.
Remove contaminated clothes. Rinse skin with plenty of water or shower.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
Rinse mouth. Do NOT induce vomiting. Refer for medical attention . See Notes.
Most important symptoms and effects, both acute and delayed
Eye and skin irritation (USCG, 1999)
Indication of any immediate medical attention and special treatment needed
If particles of calcium carbide are removed promptly /from eye/, healing may be rapid.
Extinguishing media
If material on fire or involved in fire: Do not use water. Use graphite, soda ash, powdered sodium chloride, or suitable dry powder. Carbon dioxide may be ineffective.
Specific Hazards Arising from the Chemical
Behavior in Fire: If wet by water, highly flammable acetylene gas is formed. (USCG, 1999)
Advice for firefighters
Use special powder, dry sand. NO other agents. In case of fire: keep drums, etc., cool by spraying with water. NO direct contact with water.
NFPA 704
| HEALTH | 3 | Short exposure could cause serious temporary or moderate residual injury (e.g. liquid hydrogen, sulfuric acid, calcium hypochlorite, hexafluorosilicic acid) | |
| FIRE | 3 | Liquids and solids (including finely divided suspended solids) that can be ignited under almost all ambient temperature conditions . Liquids having a flash point below 22.8 °C (73 °F) and having a boiling point at or above 37.8 °C (100 °F) or having a flash point between 22.8 and 37.8 °C (73 and 100 °F). (e.g. gasoline, acetone) | |
| REACT | 0 | Normally stable, even under fire exposure conditions, and is not reactive with water (e.g. helium,N2) | |
| SPEC. HAZ. |
Personal precautions, protective equipment and emergency procedures
Remove all ignition sources. Sweep spilled substance into covered clean, dry containers. Carefully collect remainder. Then store and dispose of according to local regulations. Do NOT use water.
Environmental precautions
Remove all ignition sources. Sweep spilled substance into covered clean, dry containers. Carefully collect remainder. Then store and dispose of according to local regulations. Do NOT use water.
Methods and materials for containment and cleaning up
Keep water away from release. Shovel into suitable dry container.
Precautions for safe handling
NO contact with water. Use non-sparking handtools. Closed system, dust explosion-proof electrical equipment and lighting. Prevent deposition of dust. Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.
Conditions for safe storage, including any incompatibilities
Separated from incompatible materials. See Chemical Dangers. Dry. Well closed.Store in a cool dry, well ventilated location. Separate from oxidizing materials, water. Immediately remove and properly dispose of any spilled material.
Control parameters
Occupational Exposure limit valuesno data available
no data available
Exposure controls
Ensure adequate ventilation. Handle in accordance with good industrial hygiene and safety practice. Set up emergency exits and the risk-elimination area.
Individual protection measures
Eye/face protectionWear safety goggles or eye protection in combination with breathing protection if powder.
Protective gloves. Protective clothing.
Use local exhaust or breathing protection.
no data available
Information on basic physicochemical properties
- Physical statepieces
- ColourGray-black
- Odour
Garlic-like
- Melting point/freezing point
447°C
- Boiling point or initial boiling point and boiling range
2300°C
- Flammability
Not combustible but forms flammable gas on contact with water or damp air. Many reactions may cause fire or explosion.
- Lower and upper explosion limit/flammability limit
no data available
- Flash point
no data available
- Auto-ignition temperature
Not flammable (USCG, 1999)
- Decomposition temperature
no data available
- pH
no data available
- Kinematic viscosity
At 1900 deg C, Mpa.s: 6000 (50% CaC2); 1700 (87% CaC2)
- Solubility
Reacts with water
- Partition coefficient n-octanol/water
no data available
- Vapour pressure
no data available
- Density and/or relative density2.22
- Relative vapour density2.22
- Particle characteristics
no data available
Reactivity
Mixtures with silver nitrate and copper salts are shock-sensitive. Decomposes violently on contact with moisture or water. This produces highly flammable and explosive acetylene gas (ICSC 0089). This generates fire and explosion hazard. Reacts with chlorine, bromine, iodine, hydrogen chloride, lead, fluoride magnesium, sodium peroxide and sulfur. This generates fire and explosion hazard. Mixtures with iron (III) chloride, iron (III) oxide and tin (II) chloride ignite easily and burn fiercely.
Chemical stability
no data available
Possibility of hazardous reactions
Not combustible but forms flammable gas on contact with water or damp air. Many reactions may cause fire or explosion.CALCIUM CARBIDE is a reducing agent. May react vigorously with oxidizing materials. The powdered mixture of the acetylide and iron oxide and iron chloride burns violently upon ignition, producing molten iron. Calcium carbide incandesces with chlorine, bromine, or iodine at 245, 350, or 305°C., respectively, [Mellor, 1946, Vol. 5, 862]. The carbide burns incandescently when mixed and heated with lead difluoride, magnesium, hydrogen chloride, and tin (II) chloride, [Mellor, 1946, 1940, 1946, and 1941], respectively. Interaction of calcium carbide with methanol to give calcium methoxide is vigorous , but subject to an induction period of variable length. Once reaction starts, evolution of acetylene gas is very rapid, unpublished observations [Bretherick 1995]. Mixing calcium carbide with silver nitrate solutions forms silver acetylide, a highly sensitive explosive. Copper salt solutions would behave similarly, [Photogr. Sci. Eng., 1966, 10, 334]. The mixture of calcium carbide and sodium peroxide is explosive, as is calcium carbide and perchloryl fluoride as gases at 100-300°C.
Conditions to avoid
no data available
Incompatible materials
Forms flammable and explosive gas and corrosive solid with moisture.
Hazardous decomposition products
Decomposes in water with formation of acetylene and calcium hydroxide and evolution of heat.
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
The substance is corrosive to the eyes, skin and respiratory tract. Inhalation may cause lung oedema, but only after initial corrosive effects on eyes and/or airways have become manifest. See Notes.
STOT-repeated exposure
no data available
Aspiration hazard
A nuisance-causing concentration of airborne particles can be reached quickly when dispersed.
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
Persistence and degradability
no data available
Bioaccumulative potential
no data available
Mobility in soil
no data available
Other adverse effects
no data available
Disposal methods
ProductThe 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.
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.
UN Number
ADR/RID: UN1402 (For reference only, please check.)
IMDG: UN1402 (For reference only, please check.)
IATA: UN1402 (For reference only, please check.)
UN Proper Shipping Name
ADR/RID: CALCIUM CARBIDE (For reference only, please check.)
IMDG: CALCIUM CARBIDE (For reference only, please check.)
IATA: CALCIUM CARBIDE (For reference only, please check.)
Transport hazard class(es)
ADR/RID: 4.3 (For reference only, please check.)
IMDG: 4.3 (For reference only, please check.)
IATA: 4.3 (For reference only, please check.)
Packing group, if applicable
ADR/RID: I (For reference only, please check.)
IMDG: I (For reference only, please check.)
IATA: I (For reference only, please check.)
Environmental hazards
ADR/RID: No
IMDG: No
IATA: No
Special precautions for user
no data available
Transport in bulk according to IMO instruments
no data available
Safety, health and environmental regulations specific for the product in question
European Inventory of Existing Commercial Chemical Substances (EINECS)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/
Other Information
Reacts violently with fire extinguishing agents such as water, producing explosive gas.The symptoms of lung oedema often do not become manifest until a few hours have passed and they are aggravated by physical effort.Rest and medical observation are therefore essential.See ICSC 0089.
The information in this MSDS is only applicable to the specified product, unless otherwise specified, it is not applicable to the mixture of this product and other substances. This MSDS only provides information on the safety of the product for those who have received the appropriate professional training for the user of the product. Users of this MSDS must make independent judgments on the applicability of this SDS. The authors of this MSDS will not be held responsible for any harm caused by the use of this MSDS.