CAS 10043-35-3 Boric Acid - Materials / Alfa Chemistry

NAVIGATION

Boric Acid

PRICE INQUIRY

Catalog Number

ACM10043353

CAS Number

10043-35-3

Product Name

Boric Acid

Structure

Category

Ceramic Materials; Electronic Materials

Description

Boric acid is an odorless white solid. Melting point 171°C. Sinks and mixes with water. (USCG, 1999);DryPowder; Liquid; OtherSolid; OtherSolid, Liquid; PelletsLargeCrystals;PelletsLargeCrystals;Colourless, odourless, transparent crystals or white granules or powder; slightly unctuous to the touch; occurs in nature as the mineral sassolite;Solid;ODOURLESS COLOURLESS CRYSTALS OR WHITE POWDER.;Odorless white solid.

IUPAC Name

boric acid

Molecular Weight

61.84g/mol

Molecular Formula

BH3O3

Canonical SMILES

B(O)(O)O

InChI

InChI=1S/BH3O3/c2-1(3)4/h2-4H

InChI Key

KGBXLFKZBHKPEV-UHFFFAOYSA-N

Boiling Point

572 °F at 760 mm Hg (decomposes) (NTP, 1992);572°F

Melting Point

169°C

Density

1.437 g/cm³

Solubility

water, 2.117e+005 mg/L @ 25 °C (est)

Appearance

Colourless or white odourless crystalline solid

Application

Boric acid serves a multitude of purposes across various industries due to its versatile properties. In manufacturing, it plays a crucial role in producing borosilicate glass, glazes, enamels, and monofilament fiberglass, which is essential for reinforcing plastics used in diverse applications from boats to circuit boards. In the pharmaceutical sector, boric acid's mild antiseptic qualities are utilized for preserving products and treating certain skin conditions, though its use in cosmetics has declined. It also functions as a pesticide for household pest control and as a preservative in the curing of animal hides, ensuring the prevention of bacterial growth. In nuclear power plants, boric acid is instrumental in moderating fission reactions, while in agriculture, it is a component in fertilizers to address boron deficiency in plants. Its historic use as a cleaning and preserving agent dates back to the ancient Greeks, and it continues to be valuable in modern applications such as pyrotechnics, electroplating, and firefighting.

Assay

0.9999

Color/Form

Colorless, transparent crystals or white granules or powder;Colorless triclinic crystals;White waxy triclinic solid plates

Complexity

Covalently-Bonded Unit Count

EC Number

233-139-2;233-139-2;234-343-4

Exact Mass

62.017524g/mol

Formal Charge

Heavy Atom Count

ICSC Number

0991

Log P

log Kow = 0.175;0.18;-1.09

MDL Number

MFCD00011337

MeSH Entry Terms

boric acid;boron oxide hydroxide;orthoboric acid

Monoisotopic Mass

62.017524g/mol

NSC Number

81726

Odor

Odorless

Other Experimental

Slightly unctuous to touch; volatile with steam; solubility in water increased by hydrochloric, citric or tartaric acids;Loses 1.5H₂O at 300 °C;Standard enthalpy of formation: -1094.3 kJ/mol (crystal); -994.1 kJ/mol (gas);pH at 20 °C: 6.1 (0.1% solution); 5.1 (1.0% solution); 3.7 (4.5% solution);Boric acid will form soluble salts with monovalent cations (e.g. Na2B407.1OH20, 6% in water) and insoluble salts with divalent cations (e.g. CaB407.6H20, almost insoluble in cold water).;Henry's Law constant = 2.6X10-12 atm-cum/mole at 25 °C, based on measured water solubility and vapor pressure;Hydroxyl radical reaction rate constant = 4.2X10-13 cu cm/molecule-sec at 25 °C (est)

Packaging

1 kg

Refractive Index

1.385

Rotatable Bond Count

RTECS Number

ED4550000

Stability

Stable at room temperature in closed containers under normal storage and handling conditions.

Storage Conditions

Store at RT.

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