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        Orthoboric acid

        Description References
        Orthoboric acid
        Orthoboric acid structure
        CAS No.
        10043-35-3
        Chemical Name:
        Orthoboric acid
        Synonyms
        boric;H3-BO3;Borofax;Boracic;Borsure;basilitb;Ant flip;Borsaure;fleaprufe;Entimaden
        CBNumber:
        CB6128144
        Molecular Formula:
        BH3O3
        Formula Weight:
        61.83
        MOL File:
        10043-35-3.mol

        Orthoboric acid Properties

        Melting point:
        169 °C
        Boiling point:
        219-220 °C (9.7513 mmHg)
        Density 
        1.435
        vapor pressure 
        2.6 mm Hg ( 20 °C)
        storage temp. 
        Store at RT.
        solubility 
        H2O: soluble
        pka
        8.91±0.43(Predicted)
        form 
        working solution
        color 
        ≤10(APHA)
        Specific Gravity
        1.435
        PH
        3.6-4.4 (25℃, saturated solution in H2O)
        Water Solubility 
        49.5 g/L (20 ºC)
        λmax
        λ: 260 nm Amax: 0.05
        λ: 280 nm Amax: 0.05
        Sensitive 
        Hygroscopic
        Merck 
        14,1336
        BRN 
        1697939
        InChIKey
        KGBXLFKZBHKPEV-UHFFFAOYSA-N
        CAS DataBase Reference
        10043-35-3(CAS DataBase Reference)
        NIST Chemistry Reference
        B(OH)3(10043-35-3)
        EPA Substance Registry System
        Orthoboric acid (10043-35-3)
        SAFETY
        • Risk and Safety Statements
        Symbol(GHS) 
        GHS08
        Signal word  Danger
        Hazard statements  H303-H360-H360FD
        Precautionary statements  P201-P308+P313-P280
        Hazard Codes  Xi,T,Xn
        Risk Statements  36/37/38-60-63-62-61
        Safety Statements  26-36-53-45-37/39-36/37/39-22-24/25-23
        WGK Germany  2
        RTECS  ED4550000
        3
        TSCA  Yes
        HS Code  28100090
        Toxicity LD50 orally in rats: 5.14 g/kg (Smyth).

        Orthoboric acid price More Price(90)

        Manufacturer Product number Product description CAS number Packaging Price Updated Buy
        Sigma-Aldrich 11607 Boric acid puriss., meets analytical specification of Ph. Eur., BP, NF, 99.5-100.5%, powder 10043-35-3 1kg $70.1 2019-12-02 Buy
        Sigma-Aldrich 1076341 Boric acid United States Pharmacopeia (USP) Reference Standard 10043-35-3 1g $458.15 2019-12-02 Buy
        Alfa Aesar 010659 Boric acid, Puratronic?, 99.9995% (metals basis) 10043-35-3 25g $39 2019-12-02 Buy
        Alfa Aesar 010659 Boric acid, Puratronic?, 99.9995% (metals basis) 10043-35-3 100g $117 2019-12-02 Buy
        Strem Chemicals 05-0205 Boric acid (99.9995%-B) PURATREM 10043-35-3 50g $74 2019-12-02 Buy

        Orthoboric acid Chemical Properties,Uses,Production

        Description

        Boric acid (orthoboric acid) is a weakly acidic hydrate of boric oxide with mild antiseptic, antifungal, and antiviral properties.
        Boric acid can be used to treat yeast infections and acne, for eyewash by treating any bacterial infection and soothing inflamed eyes, and as a cleanser, deodorizer, stain remover, disinfectant and mold killer. Boric acid can be used as a pesticide to control a variety of pests, as a fungicide for citrus, and as an herbicide along rights-of-way. Boric acid can be used for the manufacture of textile fiberglass, household glass products and the glass used in LCD displays, to reinforce plastics in various products (boats, computer circuit boards and pipes), as a flame retardant, and as a pH buffer agent in plating.

        References

        [1] http://npic.orst.edu
        [2] https://www.polyu.edu.hk
        [3] Zenat A. Nagieb, Mona A. Nassar, Magda G. El-Meligy (2011) Effect of Addition of Boric Acid and Borax on Fire-Retardant and Mechanical Properties of Urea Formaldehyde Saw Dust Composites, International Journal of Carbonhydrate Chemistry, 2011, 146763
        [4] http://www.boricacid.net.au/uses-of-boric-acid

        Chemical Properties

        White powder or granules and odorless. It is incompatible with potassium, acetic anhydride, alkalis, carbonates, and hydroxides. Boric acid has uses in the production of textile fiberglass, flat panel displays, and eye drops. Boric acid is recognized for its application as a pH buffer and as a moderate antiseptic agent and emulsifier.

        Chemical Properties

        Boric acid is a white, amorphous powder or colorless, crystalline solid.

        Chemical Properties

        Boric acid occurs as a hygroscopic, white crystalline powder, colorless shiny plates, or white crystals.

        Uses

        For weatherproofing wood and fireproofing fabrics; as a preservative; manufacture of cements, crockery, porcelain, enamels, glass, borates, leather, carpets, hats, soaps, artificial gems; in nickeling baths; cosmetics; printing and dyeing, painting; photography; for impregnating wicks; electric condensers; hardening steel. Also used as insecticide for cockroaches and black carpet beetles.

        Production Methods

        Boric acid occurs naturally as the mineral sassolite. However, the majority of boric acid is produced by reacting inorganic borates with sulfuric acid in an aqueous medium. Sodium borate and partially refined calcium borate (colemanite) are the principal raw materials. When boric acid is made from colemanite, the fineground ore is vigorously stirred with mother liquor and sulfuric acid at about 908℃. The by-product calcium sulfate is removed by filtration, and the boric acid is crystallized by cooling the filtrate.

        brand name

        Alpagelle;Anojel;Anugard;Anojel;Anugard;Anusol hc;Anusol hc;Berlicetin;Betadrin;Berlicetin;Betadrin;Bluboro;Boroformal;Bluboro;Boroformal;Borogal;Borogal;Borsyre viskos;Cacimag;Borsyre viskos;Cacimag;Caclcifor;Caclcifor;Calcamyl-24;Calcibenzamin;Calcamyl-24;Calcibenzamin;Camilca;Camilca;Chibro;Coneolent;Chibro;Coneolent;Cutaden;Cutaden;Dissol;Ear-dry;Dissol;Ear-dry;Egosol-bs;Egosol-bs;Evercil;Fermakzem;Evercil;Fermakzem;Flex-care;Flex-care;Glaucadrine;Glucocalcium;Glaucadrine;Glucocalcium;Kalopsisi;Kerapos;Kalopsisi;Kerapos;Kodomo smarin;Kodomo smarin;Komex;Lindemil;Komex;Lindemil;Macaldex;Macaldex;Mentol sedans sulfamidad;Neo-smarin dia;Mentol sedans sulfamidad;Neo-smarin dia;Neo-vagipurin;Neo-vagipurin;Normol;O-biol;Normol;O-biol;Oestro-gynedron;Oestro-gynedron;Ophtalmin;Otocaina;Ophtalmin;Otocaina;Pedoz;Pedoz;Phoscanol;Phoscanol;Poly-gynedron;Preferal;Poly-gynedron;Preferal;Proculin;Proculin;Rhinophenazol;Saddle mate;Rhinophenazol;Saddle mate;Swim-ear;Swim-ear;Swim-eye;Swim-eye;Timazincum;Timazincum;Tipolin;Tricho-gynedron;Tipolin;Tricho-gynedron;Unisol;Unisol;Vetacalin-m;Alpagelle;Vetacalin-m.

        World Health Organization (WHO)

        Boric acid and some borates were formerly extensively used as disinfectants and antiinflammatory agents. By the late 1960s an association between the death of many infants and application of high concentrations of boric acid contained in topical preparations used in the treatment of napkin rash had been established. This led to the restriction of the use of boric acid in pharmaceutical preparations by many regulatory authorities. In some countries it is now permitted only as an ingredient in ophthalmological preparations.

        Hazard

        Toxic via ingestion. Use only weak solu- tions. Irritant to skin in dry form.

        Pharmaceutical Applications

        Boric acid is used as an antimicrobial preservative in eye drops, cosmetic products, ointments, and topical creams. It is also used as an antimicrobial preservative in foods.
        Boric acid and borate have good buffering capacity and are used to control pH; they have been used for this purpose in external preparations such as eye drops.
        Boric acid has also been used therapeutically in the form of suppositories to treat yeast infections. In dilute concentrations it is used as a mild antiseptic, with weak bacteriostatic and fungistatic properties, although it has generally been superseded by more effective and less toxic disinfectants.

        Safety

        Boric acid is a weak bacteriostatic and antimicrobial agent, and has been used in topical preparations such as eye lotions, mouthwashes and gargles. It has also been used in US- and Japanese-approved intravenous products. Solutions of boric acid were formerly used to wash out body cavities, and as applications to wounds and ulcers, although the use of boric acid for these purposes is now regarded as inadvisable owing to the possibility of absorption. Boric acid is not used internally owing to its toxicity. It is poisonous by ingestion and moderately toxic by skin contact. Experimentally it has proved to be toxic by inhalation and subcutaneous routes, and moderately toxic by intraperitoneal and intravenous routes.
        Boric acid is absorbed from the gastrointestinal tract and from damaged skin, wounds, and mucous membranes, although it does not readily permeate intact skin. The main symptoms of boric acid poisoning are abdominal pain, diarrhea, erythematous rash involving both skin and mucous membrane, and vomiting. These symptoms may be followed by desquamation, and stimulation or depression of the central nervous system. Convulsions, hyperpyrexia, and renal tubular damage have been known to occur.
        Death has occurred from ingestion of less than 5 g in young children, and of 5–20 g in adults. Fatalities have occurred most frequently in young children after the accidental ingestion of solutions of boric acid, or after the application of boric acid powder to abraded skin.
        The permissible exposure limit (PEL) of boric acid is 15 mg/m3 total dust, and 5 mg/m3 respirable fraction for nuisance dusts.
        LdLo (man, oral): 429 mg/kg
        LdLo (woman, oral): 200 mg/kg
        LdLo (infant, oral): 934 mg/kg
        LdLo (man, skin): 2.43 g/kg
        LdLo (infant, skin): 1.20 g/kg
        LD50 (mouse, oral): 3.45 g/kg
        LD50 (mouse, IV): 1.24 g/kg
        LD50 (mouse, SC): 1.74 g/kg
        LD50 (rat, oral): 2.660 g/kg
        LD50 (rat, IV): 1.33 g/kg
        LD50 (rat, SC): 1.4 g/kg

        Potential Exposure

        Boric acid is a fireproofing agent for wood; a preservative, and an antiseptic. It is used in the manufacture of glass, pottery, enamels, glazes, cosmetics, cements, porcelain, borates, leather, carpets, hats, soaps; artificial gems; in tanning leather; printing, dyeing, painting, and photography.

        storage

        Boric acid is hygroscopic and should therefore be stored in an airtight, sealed container. The container must be labeled ‘Not for Internal Use’.

        Shipping

        UN 3077 Environmentally hazardous substances, solid, n.o.s., Hazard class: 9; Labels: 9—Miscellaneous hazardous material, Technical Name Required.

        Purification Methods

        Crystallise the acid three times from H2O (3mL/g) between 100o and 0o, after filtering through sintered glass.Dry it to constant weight over metaboric acid in a desiccator. It is steam volatile. After two recrystallisations of ACS grade. it had Ag at 0.2 ppm. Its solubility (%) in H2O is 2.66 at 0o, 4.0 at 12o and 24 at 80o. At 100o it loses H2O to form metaboric acid (HBO2). When it is heated to redness or slowly to 200o, or over P2O5 in vacuo, it dehydrates to boric anhydride (B2O3) [1303-82-6] to give a white hard glass or crystals with m ~294o.The glass softens on heating and liquefies at red heat. It is an astringent, a fungicide and an antibacterial. [McCulloch J Am Chem Soc 59 2650 1937, Kelly J Am Chem Soc 63 1137 1941, Taylor & Cole J Chem Soc 70 1926, Conti J Soc Chem Ind 44 343T 1925.]

        Incompatibilities

        Boric acid decomposes in heat above 100 C, forming boric anhydride and water. Boric acid is hygroscopic; it will absorb moisture from the air. Boric acid aqueous solution is a weak acid; incompatible with strong reducing agents including alkali metals and metal hydrides (may generate explosive hydrogen gas); acetic anhydride, alkali carbonates, and hydroxides. Violent reaction with powdered potassium metal, especially if impacted. Attacks iron in the presence of moisture.

        Incompatibilities

        Boric acid is incompatible with water, strong bases and alkali metals. It reacts violently with potassium and acid anhydrides. It also forms a complex with glycerin, which is a stronger acid than boric acid.

        Waste Disposal

        Boric acids may be recovered from organic process wastes as an alternative to disposal.

        Regulatory Status

        Accepted for use as a food additive in Europe. Included in the FDA Inactive Ingredients Database (IV injections; ophthalmic preparations; (auricular) otic solutions; topical preparations). Reported in the EPA TSCA Inventory. In the UK, the use of boric acid in cosmetics and toiletries is restricted. Included in the Canadian List of Acceptable Non-medicinal Ingredients.

        Orthoboric acid Preparation Products And Raw materials

        Raw materials

        Preparation Products


        Orthoboric acid Suppliers

        Global( 336)Suppliers
        Supplier Tel Fax Email Country ProdList Advantage
        Shanghai Aladdin Bio-Chem Technology Co.,LTD 021-20337333/400-620-6333
        021-50323701 sale@aladdin-e.com China 24984 65
        VWR(Shanghai) Co., Ltd 400-821-8006
        +86-21-58558801 Info_China@vwr.com China 3046 75
        HuBei Bass Electronic Material Co.,Ltd 18971568347
        bellarongl@basschemical.com China 146 58
        Aikon International Limited qq:2885670560;13813800073
        (6)02557626880 cfding@aikonchem.com China 13935 58
        J & K SCIENTIFIC LTD. 010-82848833- ;010-82848833-
        86-10-82849933 jkinfo@jkchemical.com;market6@jkchemical.com China 96505 76
        Meryer (Shanghai) Chemical Technology Co., Ltd. 21-61259100-
        86-21-61259102 sh@meryer.com China 40268 62
        Alfa Aesar 400-610-6006; 021-67582000
        021-67582001/03/05 saleschina@alfa-asia.com China 30163 84
        Beijing dtftchem Technology Co., Ltd. 010-60275820-
        010-60270825 dtftchem@sina.com; China 1403 62
        Energy Chemical 021-58432009 / 400-005-6266
        021-58436166-800 info@energy-chemical.com China 44026 61
        Capot Chemical Co., Ltd +86 (0) 571 85 58 67 18
        0086-571-85864795 sales@capotchem.com China 18228 66

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        2019-04-02 Orthoboric acid Manufacturer; In stock GMP Factory
        10043-35-3
        US $1.00 / KG 1KG High quality manufacturer TOP 3 largest production factory in China Chemwill Asia Co.,Ltd.
        2019-10-18 Boric acid
        10043-35-3
        US $0.00 / KG 1g 99.9% 1 ton Hebei shuoxi biotechnology co. LTD
        2018-08-17 Orthoboric acid
        10043-35-3
        US $1.00 / KG 1G 98% 100KG career henan chemical co

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