硼酸粉

Description

BORIC ACID POWDER · CAS 13813-79-1 · BH3O3. UNII R57ZHV85D4. Boiling Point: 300; Boiling Point: 572 °F; Melting Point: 340 °F (NTP, 1992).

Identification

CAS Registry Number	13813-79-1
PubChem CID	7628
Molecular formula	BH3O3
IUPAC name	boric acid
UNII (FDA)	R57ZHV85D4

Computed Descriptors

Molecular Weight	61.84
Hydrogen Bond Donor Count	3
Hydrogen Bond Acceptor Count	3
Rotatable Bond Count	0
Exact Mass	62.0175241
Monoisotopic Mass	62.0175241
Topological Polar Surface Area	60.7
Heavy Atom Count	4
Formal Charge	0
Complexity	8

Physical & Chemical Properties

Boiling Point	300
Boiling Point	572 °F
Melting Point	340 °F (NTP, 1992)
Melting Point	169
Melting Point	171 °C
Melting Point	170.9 °C
Melting Point	340 °F
Solubility	10 to 50 mg/mL at 66 °F (NTP, 1992)
Solubility	In water, 5.0X10+4 mg/L at 25 °C
Solubility	50 mg/mL at 25 °C

Physical description & handling notes

• Boric acid is an odorless white solid. Melting point 171 °C. Sinks and mixes with water. (USCG, 1999)
• Dry Powder; Other Solid; Large Crystals; Dry Powder; Large Crystals; Liquid; Other Solid
• Colourless, odourless, transparent crystals or white granules or powder; slightly unctuous to the touch; occurs in nature as the mineral sassolite
• Colorless crystals or white powder or granules; odorless; [Merck Index] White odorless powder; [Alfa Aesar MSDS]
• Solid
• ODOURLESS COLOURLESS CRYSTALS OR WHITE POWDER.

Regulatory Status

Regulatory & Food Contact	FDA Substance added to food: LUBRICANT OR RELEASE AGENT FDA Cumulative Estimated Daily Intake (CEDI): FCS FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS PRESERVATIVE: Food Additives NO ADI ALLOCATED NMRS 31/TRS 228-JECFA 6/37
GHS notification summary	0.1% (1 / 2123)

GHS Hazard Classification

GHS notification summary	0.1% (1 / 2123)
Reported hazard statements	H360 (88.7%), H315, H319, H335, H370, H402, H303, H372

Documented Uses

• Used as an insecticide to kill ants and roaches, as a soldering flux, a flame retardant and weatherproofing agent; also used as an additive to dyes, nickeling baths, film developers, glass, enamels, soaps, paints, paper, adhesives, and steel; [HSDB] Used as a flux, an additive for heat-resistant borosilcate glass and glass fibers, a flame retardant for textile and insulation products, a fungicide for citrus fruits, an eye medicine, and a solute for nickel electroplating baths; Boric acid is formed by crystallizing
• Steel Producing [Category: Industry]
• Brazing [Category: Heat or Machine]
• Electroplating [Category: Plate]
• Textiles (Fiber & Fabric Manufacturing) [Category: Industry]
• Painting (Pigments, Binders, and Biocides) [Category: Paint]

Synonyms

BORIC ACID; Orthoboric acid; 10043-35-3; Boracic acid; Borofax; Boron hydroxide; Boric acid (H3BO3); Boron trihydroxide; Basilit B; Three Elephant; Boric acid (BH3O3); Trihydroxyborane; Trihydroxyborone; Flea Prufe; Super Flea Eliminator; Orthoborsaeure

Frequently Asked Questions

What are the CAS number and molecular formula of BORIC ACID POWDER?

CAS 13813-79-1; molecular formula BH3O3; molecular weight — g/mol.

What other names is BORIC ACID POWDER known by?

BORIC ACID, Orthoboric acid, 10043-35-3, Boracic acid, Borofax, Boron hydroxide.

What is the regulatory status of BORIC ACID POWDER?

Documented regulatory listings: FDA Substance added to food: LUBRICANT OR RELEASE AGENT; FDA Cumulative Estimated Daily Intake (CEDI): FCS; FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS.

Is BORIC ACID POWDER classified as hazardous?

0.1% of GHS notifications report no hazard classification (1 of 2123).

What are the key physical properties of BORIC ACID POWDER?

Boiling Point: 300; Boiling Point: 572 °F; Melting Point: 340 °F (NTP, 1992); Melting Point: 169.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.