Calcium acetylide SDS
SECTION 1: Identification of the substance/mixture and of the company/undertaking
Product identifier
- Product name： Calcium acetylide
- CAS： 75-20-7
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.in
- Address：5 vasavi Layout Basaveswara Nilayam Pragathi Nagar Hyderabad, India -500090
- Telephone：+91 9550333722
SECTION 2: Hazards identification
Classification of the substance or mixture
Substances and mixtures, which in contact with water, emit flammable gases, Category 1
GHS label elements, including precautionary statements
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Pictogram(s)
- Signal word Danger
H260 In contact with water releases flammable gases which may ignite spontaneously
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 which do not result in classification
no data available
SECTION 3: Composition/information on ingredients
Substance
- Chemical name: Calcium acetylide
- Common names and synonyms: Calcium acetylide
- CAS number: 75-20-7
- EC number: 200-848-3
- Concentration: 100%
SECTION 4: First aid measures
Description of necessary first-aid measures
Fresh 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/effects, acute and delayed
Eye and skin irritation (USCG, 1999)
Indication of immediate medical attention and special treatment needed, if necessary
If particles of calcium carbide are removed promptly /from eye/, healing may be rapid.
SECTION 5: Firefighting measures
Suitable 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)
Special protective actions for fire-fighters
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.
SECTION 6: Accidental release measures
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.
SECTION 7: Handling and storage
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.
SECTION 8: Exposure controls/personal protection
Control parameters
no data available
no data available
Appropriate engineering 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, such as personal protective equipment (PPE)
Wear 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
SECTION 9: Physical and chemical properties and safety characteristics
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Physical state：
Grayish-black irregular lump solid. Used to make acetylene and in steel manufacture.
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Colour：
Grayish-black, irregular lumps or orthorhombic crystals
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Odour：
Garlic-like
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Melting point/freezing point：
447°C
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Boiling point or initial boiling point and boiling range：
2300°C
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Flammability：
Not combustible but forms flammable gas on contact with water or damp air. Many reactions may cause fire or explosion.
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Lower and upper explosion limit/flammability limit：
no data available
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Flash point：
no data available
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Auto-ignition temperature：
Not flammable (USCG, 1999)
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Decomposition temperature：
no data available
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pH：
no data available
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Kinematic viscosity：
At 1900 deg C, Mpa.s: 6000 (50% CaC2); 1700 (87% CaC2)
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Solubility：
Reacts with water
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Partition coefficient n-octanol/water：
no data available
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Vapour pressure：
no data available
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Density and/or relative density：
2.22g/mLat 25°C(lit.)
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Relative vapour density：
no data available
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Particle characteristics：
no data available
SECTION 10: Stability and reactivity
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.
SECTION 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
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.
SECTION 12: Ecological information
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
SECTION 13: Disposal considerations
Disposal methods
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.
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.
SECTION 14: Transport information
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
SECTION 15: Regulatory information
Safety, health and environmental regulations specific for the product in question
SECTION 16: Other information
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.