boric acid
CAS No.: 10043-35-3
Synonyms:
Formula: BH3O3
Exact Mass: 62.01750
Molecular Weight: 61.83300
PSA: 60.69000
LogP: -2.05180
boric acid 10043-35-3 MSDS
Name: Boric Acid Material Safety Data Sheet
Synonym: Boracic Acid, Hydrogen Borate, Orthoboric Acid
CAS: 10043-35-3
Section 1 - Chemical Product   MSDS Name:Boric Acid Material Safety Data Sheet
Synonym:Boracic Acid, Hydrogen Borate, Orthoboric Acid

Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
CAS# Chemical Name content EINECS#
10043-35-3 Boric acid 99.5% 233-139-2
Hazard Symbols: T
Risk Phrases: 60

Section 3 - HAZARDS IDENTIFICATION
  EMERGENCY OVERVIEW
May impair fertility.Hygroscopic.
Potential Health Effects
Eye:
May cause eye irritation.
Skin:
May cause skin irritation. May be absorbed through damaged or abraded skin in harmful amounts.
Ingestion:
Causes gastrointestinal irritation with nausea, vomiting and diarrhea. May cause central nervous system depression, characterized by excitement, followed by headache, dizziness, drowsiness, and nausea. Advanced stages may cause collapse, unconsciousness, coma and possible death due to respiratory failure. May cause gastric disturbances and electrolytic imbalance. May cause tissue anoxia, characterized by weakness, headache, dizziness, confusion, cyanosis (bluish skin due to deficient oxygenation of the blood), weak and irregular heart beat, collapse, unconsciousness, convulsions, coma and death.
Inhalation:
May cause respiratory tract irritation. The toxicological properties of this substance have not been fully investigated.
Chronic:
Prolonged or repeated skin contact may cause dermatitis. Chronic poisoning by boron compounds, borism, may be little more than dry skin and mucous membranes, followed by appearance of a red tongue, patchy alopecia (hair loss), cracked lips, and conjunctivitis.
Infants and young children are more susceptible to boric acid poisoning than adults.

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 soap and water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists. Wash clothing before reuse.
Ingestion:
Never give anything by mouth to an unconscious person. Get medical aid. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water. Wash mouth out with water.
Inhalation:
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
Get medical aid.
Notes to Physician:
Antidote: None reported.

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.
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:
Wash thoroughly after handling. Use only in a well-ventilated area.
Minimize dust generation and accumulation. Avoid breathing dust, vapor, mist, or gas. Avoid contact with eyes, skin, and clothing.
Keep container tightly closed. Avoid ingestion and inhalation.
Storage:
Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Keep containers tightly closed.

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 ventilation to keep airborne concentrations low.
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 protective gloves to prevent skin exposure.
Clothing:
Wear a chemical apron. Wear appropriate protective clothing to prevent skin exposure.
Respirators:
A NIOSH/MSHA approved air purifying dust or mist respirator or European Standard EN 149.

Section 9 - PHYSICAL AND CHEMICAL PROPERTIES
 
Physical State: Solid
Appearance: white
Odor: odorless
pH: 5.2 (1% sol. at 20C)
Vapor Pressure: Not available.
Viscosity: Not applicable.
Boiling Point: Not available.
Freezing/Melting Point: 339 deg F
Autoignition Temperature: Not available.
Flash Point: Not available.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature: Not available.
Solubility in water: 4.9g/100g water at 20C.
Specific Gravity/Density: 1.44 (Water=1)
Molecular Formula: H3BO3
Molecular Weight: 61.8292

Section 10 - STABILITY AND REACTIVITY
  Chemical Stability:
Stable at room temperature in closed containers under normal storage and handling conditions.
Conditions to Avoid:
High temperatures, incompatible materials, dust generation, exposure to moist air or water.
Incompatibilities with Other Materials:
Incompatible with acetic anhydride and potassium. Reacts with basic materials to form borate salts.
Hazardous Decomposition Products:
Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide, oxides of boron.
Hazardous Polymerization: Has not been reported.

Section 11 - TOXICOLOGICAL INFORMATION
  RTECS#:
CAS# 10043-35-3: ED4550000 LD50/LC50:
CAS# 10043-35-3: Oral, mouse: LD50 = 3450 mg/kg; Oral, rat: LD50 = 2660 mg/kg.
Carcinogenicity:
Boric acid - Not listed by ACGIH, IARC, NIOSH, NTP, or OSHA.
See actual entry in RTECS for complete information.

Section 12 - ECOLOGICAL INFORMATION
  Ecotoxicity:
Water flea Daphnia: LC50 = 115.0-153.0 mg/L; 48 Hr.; Static ConditionMosquito fish (fresh water) TLm=1800 ppm/24H Mosquito fish (fresh water) TLm=1800 ppm/24H

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

Section 14 - TRANSPORT INFORMATION
 
IATA
Not regulated as a hazardous material.
IMO
Not regulated as a hazardous material.
RID/ADR
Not regulated as a hazardous material.

Section 15 - REGULATORY INFORMATION
 
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: T
Risk Phrases:
R 60 May impair fertility.
Safety Phrases:
S 24/25 Avoid contact with skin and eyes.
WGK (Water Danger/Protection)
CAS# 10043-35-3: 1
United Kingdom Occupational Exposure Limits
Canada
CAS# 10043-35-3 is listed on Canada's DSL List.
CAS# 10043-35-3 is listed on Canada's Ingredient Disclosure List.
Exposure Limits
CAS# 10043-35-3: OEL-RUSSIA:STEL 10 mg/m3
US FEDERAL
TSCA
CAS# 10043-35-3 is listed on the TSCA inventory.


SECTION 16 - ADDITIONAL INFORMATION
N/A

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