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Chemical Datasheet

STIBINE

2.3 - Poisonous gas 2.1 - Flammable gas

Chemical Identifiers

CAS Number UN/NA Number DOT Hazard Label USCG CHRIS Code
  • 7803-52-3   (STIBINE)
  • 2676
  • Poison Gas
  • Flammable Gas
none
NIOSH Pocket Guide International Chem Safety Card
Stibine
  • STIBINE
NFPA 704
Diamond Hazard Value Description
4
4 2
Blue Health 4 Can be lethal.
Red Flammability 4 Burns readily. Rapidly or completely vaporizes at atmospheric pressure and normal ambient temperature.
Yellow Instability 2 Readily undergoes violent chemical changes at elevated temperatures and pressures.
White Special
(NFPA, 2010)
General Description
A colorless gas with a disagreeable odor. A moderate fire hazard that may yield toxic fumes when heated above 392°F. Irritating to skin, eyes, and mucous membranes. Heavier than air. If exposed to prolonged fire or intense heat, the container may rupture violently or rocket.

Hazards

Reactivity Alerts
Air & Water Reactions
Highly flammable.
Fire Hazard
Excerpt from 119 Polymerizable warning [Gases - Toxic - Flammable]:

Flammable; may be ignited by heat, sparks or flames. May form explosive mixtures with air. Ethylene oxide (UN1040) may react explosively even in the absence of air. Those substances designated with a (P) may polymerize explosively when heated or involved in a fire. Vapors from liquefied gas are initially heavier than air and spread along ground. Vapors may travel to source of ignition and flash back. Some of these materials may react violently with water. Cylinders exposed to fire may vent and release toxic and flammable gas through pressure relief devices. Containers may explode when heated. Ruptured cylinders may rocket. Runoff may create fire or explosion hazard. (ERG, 2020)
Health Hazard
Excerpt from 119 Polymerizable warning [Gases - Toxic - Flammable]:

TOXIC; may be fatal if inhaled or absorbed through skin. Some may cause severe skin burns and eye damage. Contact with gas or liquefied gas may cause burns, severe injury and/or frostbite. Fire will produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may cause environmental contamination. (ERG, 2020)
Reactivity Profile
An explosion occurs if STIBINE is heated with ammonia or chlorine. Stibine and concentrated nitric acid exploded [Mellor 9:397 (1946-47)].
Belongs to the Following Reactive Group(s)
Potentially Incompatible Absorbents

No information available.

Response Recommendations

Isolation and Evacuation
Excerpt from 119 Polymerizable warning [Gases - Toxic - Flammable]:

IMMEDIATE PRECAUTIONARY MEASURE: Isolate spill or leak area for at least 100 meters (330 feet) in all directions.

SPILL: See ERG Table 1 - Initial Isolation and Protective Action Distances on the UN/NA 2676 datasheet.

FIRE: If tank, rail car or tank truck is involved in a fire, ISOLATE for 1600 meters (1 mile) in all directions; also, consider initial evacuation for 1600 meters (1 mile) in all directions. (ERG, 2020)
Firefighting
Excerpt from 119 Polymerizable warning [Gases - Toxic - Flammable]:

DO NOT EXTINGUISH A LEAKING GAS FIRE UNLESS LEAK CAN BE STOPPED.

SMALL FIRE: Dry chemical, CO2, water spray or alcohol-resistant foam.

LARGE FIRE: Water spray, fog or alcohol-resistant foam. FOR CHLOROSILANES, DO NOT USE WATER; use AFFF alcohol-resistant medium-expansion foam. If it can be done safely, move undamaged containers away from the area around the fire. Damaged cylinders should be handled only by specialists.

FIRE INVOLVING TANKS: Fight fire from maximum distance or use unmanned master stream devices or monitor nozzles. Cool containers with flooding quantities of water until well after fire is out. Do not direct water at source of leak or safety devices; icing may occur. Withdraw immediately in case of rising sound from venting safety devices or discoloration of tank. ALWAYS stay away from tanks engulfed in fire. (ERG, 2020)
Non-Fire Response
Excerpt from 119 Polymerizable warning [Gases - Toxic - Flammable]:

ELIMINATE all ignition sources (no smoking, flares, sparks or flames) from immediate area. All equipment used when handling the product must be grounded. Do not touch or walk through spilled material. Stop leak if you can do it without risk. Do not direct water at spill or source of leak. Use water spray to reduce vapors or divert vapor cloud drift. Avoid allowing water runoff to contact spilled material. FOR CHLOROSILANES, use AFFF alcohol-resistant medium-expansion foam to reduce vapors. If possible, turn leaking containers so that gas escapes rather than liquid. Prevent entry into waterways, sewers, basements or confined areas. Isolate area until gas has dispersed. (ERG, 2020)
Protective Clothing
Excerpt from NIOSH Pocket Guide for Stibine:

Skin: No recommendation is made specifying the need for personal protective equipment for the body.

Eyes: No recommendation is made specifying the need for eye protection.

Wash skin: No recommendation is made specifying the need for washing the substance from the skin (either immediately or at the end of the work shift).

Remove: No recommendation is made specifying the need for removing clothing that becomes wet or contaminated.

Change: No recommendation is made specifying the need for the worker to change clothing after the workshift. (NIOSH, 2023)
DuPont Tychem® Suit Fabrics
No information available.
First Aid
Excerpt from NIOSH Pocket Guide for Stibine:

Breathing: RESPIRATORY SUPPORT - If a person breathes large amounts of this chemical, move the exposed person to fresh air at once. If breathing has stopped, perform artificial respiration. Keep the affected person warm and at rest. Get medical attention as soon as possible. (NIOSH, 2023)

Physical Properties

Chemical Formula:
  • H3Sb
Flash Point: data unavailable
Lower Explosive Limit (LEL): data unavailable
Upper Explosive Limit (UEL): data unavailable
Autoignition Temperature: data unavailable
Melting Point: -126°F (NIOSH, 2023)
Vapor Pressure: greater than 1 atm (NIOSH, 2023)
Vapor Density (Relative to Air): 4.31 (NIOSH, 2023) - Heavier than air; will sink
Specific Gravity: data unavailable
Boiling Point: -1°F at 760 mmHg (NIOSH, 2023)
Molecular Weight: 124.8 (NIOSH, 2023)
Water Solubility: Slight (NIOSH, 2023)
Ionization Energy/Potential: 9.51 eV (NIOSH, 2023)
IDLH: 5 ppm (NIOSH, 2023)

AEGLs (Acute Exposure Guideline Levels)

Interim AEGLs for Stibine (7803-52-3)
Exposure Period AEGL-1 AEGL-2 AEGL-3
10 minutes NR 4.2 ppm 28 ppm
30 minutes NR 2.9 ppm 19 ppm
60 minutes NR 1.5 ppm 9.6 ppm
4 hours NR 0.36 ppm 2.4 ppm
8 hours NR 0.18 ppm 1.2 ppm
NR = Not recommended due to insufficient data
(NAC/NRC, 2023)

ERPGs (Emergency Response Planning Guidelines)

Chemical ERPG-1 ERPG-2 ERPG-3
Stibine (7803-52-3) ID 0.5 ppm 1.5 ppm
ID = insufficient data.
(AIHA, 2022)

PACs (Protective Action Criteria)

Chemical PAC-1 PAC-2 PAC-3
Stibine; (Antimony hydride) (7803-52-3) 0.3 ppm 1.5 ppm 9.6 ppm
(DOE, 2018)

Regulatory Information

EPA Consolidated List of Lists

Regulatory Name CAS Number/
313 Category Code
EPCRA 302
EHS TPQ
EPCRA 304
EHS RQ
CERCLA RQ EPCRA 313
TRI
RCRA
Code
CAA 112(r)
RMP TQ
Antimony Compounds N010 & 313

(EPA List of Lists, 2022)

CISA Chemical Facility Anti-Terrorism Standards (CFATS)

RELEASE THEFT SABOTAGE
Chemical of Interest CAS Number Min Conc STQ Security
Issue
Min Conc STQ Security
Issue
Min Conc STQ Security
Issue
Stibine 7803-52-3 0.67 % 15 pounds WME

(CISA, 2007)

OSHA Process Safety Management (PSM) Standard List

Chemical Name CAS Number Threshold Quantity (TQ)
Stibine (Antimony Hydride) 7803-52-3 500 pounds

(OSHA, 2019)

Alternate Chemical Names