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diboron trioxide
CAS No.: 1303-86-2
Synonyms:
Formula: B2H2O3
Exact Mass: 72.01900
Molecular Weight: 71.63610
PSA: 43.37000
LogP: -1.60300
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diboron trioxide 1303-86-2 MSDS
Name: Boron oxide Material Safety Data Sheet
Synonym: Boron oxide; boron trioxide; boron sesquioxide; boron trioxide; diboron trioxid
CAS: 1303-86-2
Section 1 - Chemical Product   MSDS Name:Boron oxide Material Safety Data Sheet
Synonym:Boron oxide; boron trioxide; boron sesquioxide; boron trioxide; diboron trioxid

Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
CAS# Chemical Name content EINECS#
1303-86-2 Boron oxide >98 215-125-8
Hazard Symbols: None Listed.
Risk Phrases: None Listed.

Section 3 - HAZARDS IDENTIFICATION
  EMERGENCY OVERVIEW
Hygroscopic (absorbs moisture from the air).
Potential Health Effects
Eye:
Causes eye irritation.
Skin:
May cause mild skin irritation. May cause erythema (redness) and exfoliation.
Ingestion:
May cause irritation of the digestive tract.
Inhalation:
Dust is irritating to the respiratory tract.
Chronic:
May cause kidney injury. Repeated ingestion of small amounts may cause mucous membrane dryness, hair loss, swelling around eyes and irritability.

Section 4 - FIRST AID MEASURES
  Eyes: Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.
Skin:
Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists.
Ingestion:
Get medical aid. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
Inhalation:
Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Notes to Physician:

Section 5 - FIRE FIGHTING MEASURES
  General Information:
As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Boric oxide is not flammable, combustible or explosive. The product is itself a flame retardant.
Extinguishing Media:
Substance is noncombustible; use agent most appropriate to extinguish surrounding fire.

Section 6 - ACCIDENTAL RELEASE MEASURES
  General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks:
Vacuum or sweep up material and place into a suitable disposal container. Clean up spills immediately, observing precautions in the Protective Equipment section. Avoid generating dusty conditions.
Provide ventilation.

Section 7 - HANDLING and STORAGE
  Handling:
Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with skin and eyes. Avoid ingestion and inhalation.
Storage:
Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.

Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
  Engineering Controls:
Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Use adequate general or local exhaust ventilation to keep airborne concentrations below the permissible exposure limits.
Exposure Limits CAS# 1303-86-2: United Kingdom, WEL - TWA: 10 mg/m3 TWA United Kingdom, WEL - STEL: 20 mg/m3 STEL United States OSHA: 15 mg/m3 TWA (total dust) Belgium - TWA: 10 mg/m3 VLE France - VME: 10 mg/m3 VME Malaysia: 10 mg/m3 TWA Netherlands: 10 mg/m3 MAC Russia: 5 mg/m3 TWA Spain: 10 mg/m3 VLA-ED Personal Protective Equipment Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166.
Skin:
Wear appropriate gloves to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to minimize contact with skin.
Respirators:
Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced.

Section 9 - PHYSICAL AND CHEMICAL PROPERTIES
 
Physical State: Powder
Color: white
Odor: odorless
pH: Not available.
Vapor Pressure: < .01 mm Hg
Viscosity: Not available.
Boiling Point: 1860 deg C @ 760.00mm Hg
Freezing/Melting Point: 450 deg C
Autoignition Temperature: Not available.
Flash Point: Not available.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature:
Solubility in water: 36 G/L (25C)
Specific Gravity/Density: 2.4600g/cm3
Molecular Formula: B2O3
Molecular Weight: 69.61

Section 10 - STABILITY AND REACTIVITY
  Chemical Stability:
Stable. Hygroscopic: absorbs moisture or water from the air.
Moisture causes caking of product.
Conditions to Avoid:
Incompatible materials, moisture.
Incompatibilities with Other Materials:
Reaction with strong reducing agents, such as metal hydrides or alkali metals, will generate hydrogen gas, which could lead to an explosion., Reacts violently on contact with Bromine pentafluoride.
Slowly reacts with water to release heat( (75.94 kJ/mol) and form Boric acid., acids.
Hazardous Decomposition Products:
None.
Hazardous Polymerization: Has not been reported.

Section 11 - TOXICOLOGICAL INFORMATION
  RTECS#:
CAS# 1303-86-2: ED7900000 LD50/LC50:
CAS# 1303-86-2: Draize test, rabbit, eye: 50 mg; Draize test, rabbit, skin: 1 gm; Oral, mouse: LD50 = 3163 mg/kg; Oral, rat: LD50 = 3150 mg/kg.
Carcinogenicity:
Boron oxide - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.

Section 12 - ECOLOGICAL INFORMATION
  Ecotoxicity:
Daphnia: Daphnia: 133 mg B/L; 48-Hr.; LC 50Fish: Rainbow trout: 150 mg B/L; 24-Day; LC 50Fish: Goldfish: 46 mg B/L; 7-Day; LC 50Fish: Goldfish: 178 mg B/L; 3-Day; LC 50

Section 13 - DISPOSAL CONSIDERATIONS
  Dispose of in a manner consistent with federal, state, and local regulations.

Section 14 - TRANSPORT INFORMATION
 
IATA
Shipping Name: Not regulated.
Hazard Class:
UN Number:
Packing Group:
IMO
Shipping Name: Not regulated.
Hazard Class:
UN Number:
Packing Group:
RID/ADR
Shipping Name: Not regulated.
Hazard Class:
UN Number:
Packing group:

Section 15 - REGULATORY INFORMATION
 
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: Not available.
Risk Phrases:
Safety Phrases:
S 24/25 Avoid contact with skin and eyes.
WGK (Water Danger/Protection)
CAS# 1303-86-2: 1
Canada
CAS# 1303-86-2 is listed on Canada's DSL List.
CAS# 1303-86-2 is listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 1303-86-2 is listed on the TSCA inventory.


SECTION 16 - ADDITIONAL INFORMATION
N/A

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