MATERIAL SAFETY DATA SHEETS
MSDS No: 1590-87-0
|SUPPLIER ADDRESS:||6141 Easton Road, Bldg. 1|
PO Box 310
Plumsteadville, PA 18949-0310
|EMERGENCY PHONE NUMBER:||(215) 766-8861|
|PRODUCT NAME:||DISILANE||SYNONYMS:||Silicon Hexahydride, Disilicane|
|2. COMPOSITION, INFORMATION ON INGREDIENTS|
|Ingredient Name||Formula||CAS #||Concentration|| ACGIH TLV || OSHA PEL || MAC || Other STEL |
|Note: ||NE = NONE ESTABLISHED||S/A = SIMPLE ASPHYXIANT|
|3. HAZARD INDENTIFICATION|
* * * EMERGENCY OVERVIEW * * *
Pyrophoric, flammable liquid and gas under pressure.
Can ignite on contact with air.
May form explosive mixtures with air.
POTENTIAL HEALTH EFFECTS
ROUTES OF ENTRY: Inhalation
ACUTE EFFECTS: Since disilane is spontaneously flammable in air (liberating silicon dioxide), its toxicological properties are difficult to determine.Inhalation of low concentrations could react with basic solutions in the body liberating silicates and hydrogen.Further, with possible hydrolysis in the body tissues, silicic acid would be formed.Skin contact may cause irritation.
CHRONIC EFFECTS: None known
MEDICAL CONDITIONS AGGRAVATED BY OVEREXPOSURE: None known
OTHER EFFECTS OF OVEREXPORSURE: None
CARCINOGENICITY (US ONLY):
NTP - No
IARC MONOGRAPHS - No
OSHA REGULATED - No
INHALATION: Immediately remove victim to fresh air. If breathing has stopped, give artificial respiration. If breathing is difficult, give oxygen.
EYE CONTACT: Immediately flush with copious amounts of water for at least 15 minutes.
SKIN CONTACT: Immediately flush with copious amounts of water for at least 15 minutes while removing contaminated clothing.
IN EVENT OF EXPOSURE, CONSULT A PHYSICIAN
NOTE TO PHYSICIAN: None
|5. FIRE FIGHTING MEASURES|
FLASH POINT: Pyrophoric
AUTOIGNITION TEMPERATURE: N/Av
FLAMMABLE LIMITS: Vol.%
EXTINGUISHING MEDIA: Allow to burn.Do not try to extinguish because burning reduces the possibility of explosions of disilane and air mixtures.
SPECIAL FIRE FIGHTING INSTRUCTION AND EQUIPMENT: Wear self-contained breathing apparatus and full protective clothing.Keep fire exposed cylinders cool with water spray.If possible, stop the product flow.
HAZARDOUS COMBUSTION PRODUCTS: Silane, hydrogen, SiO2, silicates.
UNUSUAL FIRE AND EXPLOSION HAZARDS: Although disilane is pyrophoric, low concentrations may be released without burning.These releases may concentrate resulting in fire or explosion.Cylinder rupture may occur under fire conditions.
|6. ACCIDENTAL RELEASE MEASURES|
CLEAN UP PROCEDURES: Evacuate and ventilate area.Shut off source if possible and remove source of heat.Allow leaks to burn themselves out.
SPECIALIZED EQUIPMENT: None
PRECAUTIONS TO BE TAKEN IN HANDLING: Secure cylinder when using to protect from falling. Use suitable hand truck to move cylinders.Use spark-proof tool and explosion-proof equipment.
PRECAUTIONS TO BE TAKEN IN STORAGE: Store in well ventilated areas. Keep valve protection cap on cylinders when not in use.
|8. EXPOSURE CONTROLS / PERSONAL PROTECTION|
ENGINEERING CONTROLS: Provide adequate general and local exhaust ventilation.
EYE / FACE PROTECTION: Safety glasses
SKIN PROTECTION: Protective gloves.
RESPIRATORY PROTECTION: In case of leakage, use self-contained breathing apparatus.
OTHER PROTECTIVE EQUIPMENT: Safety shoes when handling cylinders.
|9. PHYSICAL AND CHEMICAL PROPERTIES|
PHYSICAL PRESSURE: Gas
VAPOR PRESSURE: 46 psia @ 70 deg. F
VAPOR DENSITY (AIR=1): N/Av
BOILING POINT (C): -14.15
SOLUBILITY IN WATER: Insoluble
SPECIFIC GRAVITY (H2O=1): @ boiling point 0.901
EVAPORATION RATE: Gas
ODOR THRESHOLD: N/av
|10. STABILITY AND REACTIVITY|
STABILITY: Stable under normal storage conditions.
CONDITIONS TO AVOID: Storage in poorly ventilated areas. Storage near a heat source.
MATERIALS TO AVOID: Air, halogens, oxidizing agents.
HAZARDOUS POLYMERIZATION: Will not occur.
HAZARDOUS DECOMPOSITION: Silane, hydrogen, SiO2, silicates.
|11. TOXICOLOGICAL INFORMATION|
LETHAL CONCENTRATION (LC50): NONE ESTABLISHED
LETHAL DOSE 50 (LD50): N/Ap
REPRODUCTIVE EFFECTS: N/Ap
|12. ECOLOGICAL INFORMATION|
No adverse ecological effects are expected.
|13. DISPOSAL CONSIDERATIONS|
WASTE DISPOSAL METHOD: Dispose of non-refillable cylinders in accordance with federal, state, and local regulations.If the cylinders are the refillable type, return cylinders to supplier with any valve outlet plugs or caps secured and valve protection cap in place.
|14. TRANSPORT INFORMATION|
DOT DESCRIPTION (US ONLY):
PROPER SHIPPING NAME: Compressed gases, flammable, n.o.s.
HAZARD CLASS: 2.1 (flammable)
INDENTIFICATION NUMBER: UN3161
REPORTABLE QUANTITIES: None
LABELING: FLAMMABLE GAS
ADR / RID (EU Only): Class 2, 1f
SPECIAL PRECAUTIONS: Cylinders should be transported in a secure upright position in a well ventilated truck.
|15. REGULATORY INFORMATION|
OSHA: Process Safety Management: Material is not listed in appendix A of 29 CFR 1910.119 as highly hazardous chemical.
TSCA: Material is listed in TSCA inventory.
SARA: The threshold planning quantity for material is 10,000 lbs.
EU NUMBER: 216-466-5
NUMBER IN ANNEX 1 OF DIR 67/548: Not listed in annex 1.
EU CLASSIFICATION: N/Av
OTHER PRECAUTIONS: Protect containers from physical damage. Do not deface cylinders or labels. Cylinders should be refilled by qualified producers of compressed gas. Shipment of a compressed gas cylinder which has not been filled by the owner or with his written consent is a violation of federal law (49 CFR).
ABBREVIATIONS: N/Ap - Not Applicable N/Av - Not Available SA - Simple Asphyxiant NE - None Established
DISCLAIMER: Information included in this document is given to the best of our knowledge, however, no warranty is made that the information is accurate or complete. We do not accept any responsibility for damages by the use of the document.