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MATERIAL SAFETY DATA SHEETS

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MSDS No: 7803-62-5
Date: 09/19/2006

SUPPLIER ADDRESS:6141 Easton Road, Bldg. 1
PO Box 310
Plumsteadville, PA 18949-0310
EMERGENCY PHONE NUMBER:(215) 766-8861

1. CHEMICAL PRODUCT

PRODUCT NAME:SILANESYNONYMS:Silicon tetrahydride or monosilane

2. COMPOSITION, INFORMATION ON INGREDIENTS
 
Exposure Limits (PPM)
Ingredient NameFormulaCAS #Concentration ACGIH TLV OSHA PEL MAC Other STEL
SILANESiH47803-62-5 99+% 5NE 0.5NE


Note: NE = NONE ESTABLISHEDS/A = SIMPLE ASPHYXIANT

3. HAZARD INDENTIFICATION

* * * EMERGENCY OVERVIEW * * *
Pyrophoric flammable high pressure gas.
Can ignite on contact with air.
Can form explosive mixtures with air.

POTENTIAL HEALTH EFFECTS

ROUTES OF ENTRY: Inhalation

ACUTE EFFECTS: Excessive inhalation can cause nasal irritation, dizziness, weakness, fatigue, nausea, headache, possible unconsciousness and asphyxiation.Inhalation causes irritation of the respiratory tract.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
4. FIRST AID MEASURES

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.

INGESTION: None

IN EVENT OF EXPOSURE, CONSULT A PHYSICIAN

NOTE TO PHYSICIAN: None

5. FIRE FIGHTING MEASURES

FLASH POINT: Gas

AUTOIGNITION TEMPERATURE: PYROPHORIC

FLAMMABLE LIMITS:
    LOWER: 1.5%
    UPPER: 98%

EXTINGUISHING MEDIA: TREAT ANY SILANE FIRE AS AN EMERGENCY.Do not try to extinguish because burning reduces the possibility of explosions of silane and air mixtures.Allow to burn.Move cylinder away from fire if there is no risk.

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: Silicon products

UNUSUAL FIRE AND EXPLOSION HAZARDS: Cylinder rupture may occur under fire conditions.Apply water from an explosion proof location, if this is not feasible consider evacuation.Sudden release of material into the atmosphere may cause an explosion.

6. ACCIDENTAL RELEASE MEASURES

CLEAN UP PROCEDURES: Evacuate and ventilate area.Remove all sources of heat and ignition.An explosive mixture may form and explode violently.Allow leaks to burn themselves out.Leaks may stop temporarily because silica has formed a plug at the leak site.This incorrect assumption can cause additional risk when plug is loosened.

SPECIALIZED EQUIPMENT: None

7. HANDLING AND STORAGE

PRECAUTIONS TO BE TAKEN IN HANDLING: Secure cylinder when using to protect from falling.Use suitable hand truck to move cylinders.Use explosion proof ventilation, piping, and 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 to maintain concentration below exposure limits.

EYE / FACE PROTECTION: Safety glasses

SKIN PROTECTION: None

RESPIRATORY PROTECTION: In case of leakage, use self-contained breathing apparatus.

OTHER PROTECTIVE EQUIPMENT: Safety shoes when handling cylinders.

9. PHYSICAL AND CHEMICAL PROPERTIES

APPEARANCE: Colorless

ODOR: Unpleasant

PHYSICAL PRESSURE: Gas

VAPOR PRESSURE: @ 20 C: Gas

VAPOR DENSITY (AIR=1): 1.1

BOILING POINT (C): -112

SOLUBILITY IN WATER: Slight

SPECIFIC GRAVITY (H2O=1): @20 deg. C 0.711

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, oxygen, halogens, heavy metal hydrides and oxidizing agents.

HAZARDOUS POLYMERIZATION: Will not occur.

HAZARDOUS DECOMPOSITION: Silane emits hydrogen, silicon, and silicon dioxide.

11. TOXICOLOGICAL INFORMATION

LETHAL CONCENTRATION (LC50): 19,000 ppm, rat 1 hour.

LETHAL DOSE 50 (LD50): N/Ap

TERATOGENICITY: N/Ap

REPRODUCTIVE EFFECTS: N/Ap

MUTAGENICITY: N/Ap

12. ECOLOGICAL INFORMATION

No adverse ecological effects are expected.

13. DISPOSAL CONSIDERATIONS

WASTE DISPOSAL METHOD: Allow gas to vent slowly to atmosphere in an unconfined area. If the cylinders are the refillable type, return cylinders to supplier with any valve outlet plugs or caps secured and valve protection caps in place.

14. TRANSPORT INFORMATION

CONCENTRATION: 99+%

DOT DESCRIPTION (US ONLY):

    PROPER SHIPPING NAME: Silane, compressed
    HAZARD CLASS: 2.1 (flammable)
    INDENTIFICATION NUMBER: UN2203
    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: N/Av

NUMBER IN ANNEX 1 OF DIR 67/548: Not listed in annex 1.

EU CLASSIFICATION:

R: 17

S: N/Av

16. OTHER INFORMATION

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.

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