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    Boric acid
    CAS No.: 11113-50-1 Formula: BH3O3 Molecular Weight: 61.83300
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    Boric acid

    CAS No.: 11113-50-1 Formula: BH3O3 Molecular Weight: 61.83300
    Suppliers: All (46) China Suppliers (46) Price Available (13) Contractor (5)

    Basic Info

    Chemical Name Boric acid
    Synonyms

    CAS No. 11113-50-1
    Molecular Formula BH3O3
    Molecular Weight 61.83300
    PSA 60.69000
    LogP -2.05180

    Numbering system

    EINECS number 234-343-4

    Properties

    Density 1.437 g/cm3
    Melting Point 170.9oC

    Safety Info

    HS Code 2810002000
    SDS 1.0 Expand

    SDS 1.0

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    SAFETY DATA SHEETS

    According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

    Version: 1.0

    Creation Date: Aug 18, 2017

    Revision Date: Aug 18, 2017

    1.Identification

    1.1 GHS Product identifier

    Product name Boric acid

    1.2 Other means of identification

    Product number -
    Other names -

    1.3 Recommended use of the chemical and restrictions on use

    Identified uses For industry use only. Enzymes and Enzyme Stabilizers
    Uses advised against no data available

    1.4 Supplier's details

    Company MOLBASE (Shanghai) Biotechnology Co., Ltd.
    Address Floor 4 & 5, Building 12, No. 1001 North Qinzhou Road,
    Xuhui District, Shanghai, China
    Telephone +86(21)64956998
    Fax +86(21)54365166

    1.5 Emergency phone number

    Emergency phone number +86-400-6021-666
    Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

    2.Hazard identification

    2.1 Classification of the substance or mixture

    Reproductive toxicity, Category 1B

    2.2 GHS label elements, including precautionary statements

    Pictogram(s)
    Signal word

    Danger

    Hazard statement(s)

    H360FD

    Precautionary statement(s)
    Prevention

    P201 Obtain special instructions before use.

    P202 Do not handle until all safety precautions have been read and understood.

    P280 Wear protective gloves/protective clothing/eye protection/face protection.

    Response

    P308+P313 IF exposed or concerned: Get medical advice/ attention.

    Storage

    P405 Store locked up.

    Disposal

    P501 Dispose of contents/container to ...

    2.3 Other hazards which do not result in classification

    none

    3.Composition/information on ingredients

    3.1 Substances

    Chemical name Common names and synonyms CAS number EC number Concentration
    Boric acid Boric acid 11113-50-1 none 100%

    4.First-aid measures

    4.1 Description of necessary first-aid measures

    General advice

    Consult a physician. Show this safety data sheet to the doctor in attendance.

    If inhaled

    Fresh air, rest.

    In case of skin contact

    Rinse and then wash skin with water and soap.

    In case of eye contact

    Rinse with plenty of water (remove contact lenses if easily possible).

    If swallowed

    Rinse mouth. Do NOT induce vomiting. Refer immediately for medical attention.

    4.2 Most important symptoms/effects, acute and delayed

    Although no adverse effects have been reported from inhaling boric acid dust, it is absorbed through mucous membranes. Ingestion of 5 grams or more may irritate gastrointestinal tract and affect central nervous system. Contact with dust or aqueous solutions may irritate eyes; no chronic effects have been recognized, but continued contact should be avoided. Dust and solutions are absorbed through burns and open wounds but not through unbroken skin. (USCG, 1999)

    4.3 Indication of immediate medical attention and special treatment needed, if necessary

    The diagnoses of boric acid poisoning can be confirmed with the measurement of blood or serum boric acid levels (nL=1.4 nmol/mL), but this test is not routinely available. Treatment of boric acid toxicity is mainly supportive. Activated charcoal is not recommended because of its relatively poor adsorptive capacity for boric acid. In cases of massive oral overdose or renal failure, hemodialysis, or perhaps exchange transfusion in infants, may be helpful in shortening the half-life of boric acid.

    5.Fire-fighting measures

    5.1 Extinguishing media

    Suitable extinguishing media

    Fire Extinguishing Agents: Water fog. (USCG, 1999)

    5.2 Specific hazards arising from the chemical

    Literature sources indicate that this compound is nonflammable.

    5.3 Special protective actions for fire-fighters

    Wear self-contained breathing apparatus for firefighting if necessary.

    6.Accidental release measures

    6.1 Personal precautions, protective equipment and emergency procedures

    Use personal protective equipment. Avoid dust formation. Avoid breathing vapours, mist or gas. Ensure adequate ventilation. Evacuate personnel to safe areas. Avoid breathing dust. For personal protection see section 8.

    6.2 Environmental precautions

    Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting. Wash away remainder with plenty of water.

    6.3 Methods and materials for containment and cleaning up

    Pick up and arrange disposal. Sweep up and shovel. Keep in suitable, closed containers for disposal.

    7.Handling and storage

    7.1 Precautions for safe handling

    Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Avoid exposure - obtain special instructions before use.Provide appropriate exhaust ventilation at places where dust is formed. For precautions see section 2.2.

    7.2 Conditions for safe storage, including any incompatibilities

    Separated from strong bases.Preserve in well-closed containers.

    8.Exposure controls/personal protection

    8.1 Control parameters

    Occupational Exposure limit values

    no data available

    Biological limit values

    no data available

    8.2 Appropriate engineering controls

    Handle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and at the end of workday.

    8.3 Individual protection measures, such as personal protective equipment (PPE)

    Eye/face protection

    Safety glasses with side-shields conforming to EN166. Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU).

    Skin protection

    Wear impervious clothing. The type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace. Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique(without touching glove's outer surface) to avoid skin contact with this product. Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices. Wash and dry hands. The selected protective gloves have to satisfy the specifications of EU Directive 89/686/EEC and the standard EN 374 derived from it.

    Respiratory protection

    Wear dust mask when handling large quantities.

    Thermal hazards

    no data available

    9.Physical and chemical properties

    Physical state Boric acid is an odorless white solid. Melting point 171°C. Sinks and mixes with water. (USCG, 1999)
    Colour Colorless, transparent crystals or white granules or powder
    Odour Odorless
    Melting point/ freezing point 170.9oC
    Boiling point or initial boiling point and boiling range 300°C at 760 mm Hg (decomposes)
    Flammability Not combustible. Gives off irritating or toxic fumes (or gases) in a fire.
    Lower and upper explosion limit / flammability limit no data available
    Flash point no data available
    Auto-ignition temperature no data available
    Decomposition temperature 171°C
    pH 3,8-4,8 (3,3?% aqueous solution)
    Kinematic viscosity no data available
    Solubility 10 to 50 mg/mL at 18.89°C
    Partition coefficient n-octanol/water (log value) log Kow = 0.175
    Vapour pressure 1.6X10-6 mm Hg at 25°C (2.136X10-4 Pa); log P (in Pa) = 26.83 - 9094/T where T is deg K
    Density and/or relative density 1.437 g/cm3
    Relative vapour density no data available
    Particle characteristics no data available

    10.Stability and reactivity

    10.1 Reactivity

    no data available

    10.2 Chemical stability

    Stable in air.

    10.3 Possibility of hazardous reactions

    Not flammableBORIC ACID is a very weak acid. Incompatible with alkali carbonates and hydroxides. During an attempt to make triacetyl borate, a mixture of boric acid and acetic anhydride exploded when heated to 58-60°C [Chem. Eng. News 51:(34) 1973]. Reacts violently with the strong reducing agent potassium metal.

    10.4 Conditions to avoid

    no data available

    10.5 Incompatible materials

    During an attempt to make triacetyl borate, a mixture of boric acid and acetic anhydride exploded when heated to 58-60°C.

    10.6 Hazardous decomposition products

    Boric acid decomposes in heat above 100°C forming boric anhydride and water.

    11.Toxicological information

    Acute toxicity

    • Oral: LD50 Rat oral 3000-4000 mg/kg bw
    • Inhalation: LC50 Rat inhalation >0.16 mg/L 4hr
    • Dermal: no data available

    Skin corrosion/irritation

    no data available

    Serious eye damage/irritation

    no data available

    Respiratory or skin sensitization

    no data available

    Germ cell mutagenicity

    no data available

    Carcinogenicity

    Cancer Classification: Group E Evidence of Non-carcinogenicity for Humans

    Reproductive toxicity

    no data available

    STOT-single exposure

    no data available

    STOT-repeated exposure

    no data available

    Aspiration hazard

    no data available

    12.Ecological information

    12.1 Toxicity

    • Toxicity to fish: LC50; Species: Oncorhynchus mykiss (Rainbow trout); Concentration: 100 ppm for 96 hr (soft water); exposure was initiated subsequent to fertilization and maintained through 4 days posthatching /Conditions of bioassay not specified in source examined
    • Toxicity to daphnia and other aquatic invertebrates: LC50; Species: Daphnia magna (Water flea); Conditions: static bioassay; Concentration: 133 (115-153) mg/L for 48 hr
    • Toxicity to algae: no data available
    • Toxicity to microorganisms: no data available

    12.2 Persistence and degradability

    No biotransformation processes have been reported for boron compounds(1). Boric acid has been shown to be a mild antiseptic agent with bacteriostatic action(2). A concentration beyond 10 mg/L produces toxicity to activated sludge cultures(3).

    12.3 Bioaccumulative potential

    Highly water soluble materials are unlikely to bioaccumulate to any significant degree, and borate species are all present essentially as undissociated boric acid at neutral pH(1). The octanol/water partition coefficient for boric acid has been measured as 0.175(1), indicating low bioaccumulation potential(1). Boron did not bioaccumulate in 47-day and 21-day exposure tests using oysters and sockeye salmon respectively(1).

    12.4 Mobility in soil

    Boric acid adsorption to illite (three-layered clay consisting of two outer layers of hydrated SiO2 and a central layer of hydrated Al2O3) and kaolinite (alternate layers of SiO2 and Al2O3) clays, as well as activated sludge was studied. The compound was added to 100 mL flasks corresponding to a boron concentration range of zero to 256 mg/L. It was observed that kaollinite adsorbed about 40 times (Kd = 0.199 (Freundlich adsorption coefficient)) more boric acid than illinite (Kd = 0.005) at pH 7; five times as much boric acid adsorbed to activated sludge (Kd = 0.025) as to illinite at pH 7(1). Boron adsorption is influenced by the distribution of boron species (H3BO3; B(OH)4(-)) as well as pH, the type and/or composition of the solution matrix, and surface properties(2). The pKa of boric acid is 9.24(3), indicating that this compound will exist primarily in the undissociated form in the environment, but partially in the anion form in alkaline soils(SRC). However, boric acid is a Lewis acid and therefore behaves as an electron acceptor, rather than a proton donor(3).

    12.5 Other adverse effects

    no data available

    13.Disposal considerations

    13.1 Disposal methods

    Product

    The material can be disposed of by removal to a licensed chemical destruction plant or by controlled incineration with flue gas scrubbing. Do not contaminate water, foodstuffs, feed or seed by storage or disposal. Do not discharge to sewer systems.

    Contaminated packaging

    Containers can be triply rinsed (or equivalent) and offered for recycling or reconditioning. Alternatively, the packaging can be punctured to make it unusable for other purposes and then be disposed of in a sanitary landfill. Controlled incineration with flue gas scrubbing is possible for combustible packaging materials.

    14.Transport information

    14.1 UN Number

    ADR/RID: no data available IMDG: no data available IATA: no data available

    14.2 UN Proper Shipping Name

    ADR/RID: no data available
    IMDG: no data available
    IATA: no data available

    14.3 Transport hazard class(es)

    ADR/RID: no data available IMDG: no data available IATA: no data available

    14.4 Packing group, if applicable

    ADR/RID: no data available IMDG: no data available IATA: no data available

    14.5 Environmental hazards

    ADR/RID: no IMDG: no IATA: no

    14.6 Special precautions for user

    no data available

    14.7 Transport in bulk according to Annex II of MARPOL 73/78 and the IBC Code

    no data available

    15.Regulatory information

    15.1 Safety, health and environmental regulations specific for the product in question

    Chemical name Common names and synonyms CAS number EC number
    Boric acid Boric acid 11113-50-1 none
    European Inventory of Existing Commercial Chemical Substances (EINECS) Listed.
    EC Inventory Listed.
    United States Toxic Substances Control Act (TSCA) Inventory Listed.
    China Catalog of Hazardous chemicals 2015 Not Listed.
    New Zealand Inventory of Chemicals (NZIoC) Listed.
    Philippines Inventory of Chemicals and Chemical Substances (PICCS) Listed.
    Vietnam National Chemical Inventory Listed.
    Chinese Chemical Inventory of Existing Chemical Substances (China IECSC) Listed.

    16.Other information

    Information on revision

    Creation Date Aug 18, 2017
    Revision Date Aug 18, 2017

    Abbreviations and acronyms

    • CAS: Chemical Abstracts Service
    • ADR: European Agreement concerning the International Carriage of Dangerous Goods by Road
    • RID: Regulation concerning the International Carriage of Dangerous Goods by Rail
    • IMDG: International Maritime Dangerous Goods
    • IATA: International Air Transportation Association
    • TWA: Time Weighted Average
    • STEL: Short term exposure limit
    • LC50: Lethal Concentration 50%
    • LD50: Lethal Dose 50%
    • EC50: Effective Concentration 50%

    References

    • IPCS - The International Chemical Safety Cards (ICSC), website: http://www.ilo.org/dyn/icsc/showcard.home
    • HSDB - Hazardous Substances Data Bank, website: https://toxnet.nlm.nih.gov/newtoxnet/hsdb.htm
    • IARC - International Agency for Research on Cancer, website: http://www.iarc.fr/
    • eChemPortal - The Global Portal to Information on Chemical Substances by OECD, website: http://www.echemportal.org/echemportal/index?pageID=0&request_locale=en
    • CAMEO Chemicals, website: http://cameochemicals.noaa.gov/search/simple
    • ChemIDplus, website: http://chem.sis.nlm.nih.gov/chemidplus/chemidlite.jsp
    • ERG - Emergency Response Guidebook by U.S. Department of Transportation, website: http://www.phmsa.dot.gov/hazmat/library/erg
    • Germany GESTIS-database on hazard substance, website: http://www.dguv.de/ifa/gestis/gestis-stoffdatenbank/index-2.jsp
    • ECHA - European Chemicals Agency, website: https://echa.europa.eu/

    Disclaimer: The above information is believed to be correct but does not purport to be all inclusive and shall be used only as a guide. The information in this document is based on the present state of our knowledge and is applicable to the product with regard to appropriate safety precautions. It does not represent any guarantee of the properties of the product. We as supplier shall not be held liable for any damage resulting from handling or from contact with the above product.
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