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10043-35-3

Basic Information
CAS No.: 10043-35-3
Name: Orthoboric acid
Molecular Structure:
Molecular Structure of 10043-35-3 (Orthoboric acid)
Formula: BH3O3
Molecular Weight: 61.83
Synonyms: Boracic acid;Boron trihydroxide;
EINECS: 233-139-2
Density: 1.438 g/cm3
Melting Point: 169 °C
Boiling Point: 219-220 °C (9.7513 mmHg)
Flash Point:
Solubility: 49.5 g/L (20 °C) in water
Appearance: white crystalline solid
Hazard Symbols: IrritantXi,ToxicT,HarmfulXn
Risk Codes: 36/37/38-60-63-62
Safety: 26-36-53-45-37/39-36/37/39-22
Transport Information:
PSA: 60.69000
LogP: -2.05180
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Specification

The IUPAC name of OrthoOrthoboric acid is Orthoboric acid. With the CAS registry number 10043-35-3, it is also named as Boron hydroxide. The product's categories are Industrial/Fine Chemicals; Inorganics; BI - BZSpectroscopy; AAS; AAS CRMsAlphabetic; AASSpectroscopy; Application CRMs; B; Matrix Selection; Nitrate; Spectroscopy; Buffers A to ZBiological Buffers; SigmaUltra Buffers; Biological Buffers; Buffer Convenience Packaging; Buffer TabletsBiological Buffers; A-B, Puriss p.a. ACS; Analytical Reagents for General Use; Puriss p.a. ACS; Buffers A to Z; AlphabeticalMolecular Biology; BioUltra Buffers;  etc., and the other registry numbers are 12795-04-9; 30698-98-7. Besides, it is white crystalline solid, which should be stored in dry, clean, cool and ventilated warehouse. In addition, its molecular formula is H3BO3 and molecular weight is 61.83.

The other characteristics of this product can be summarized as: (1)EINECS: 201-191-5; (2)# of Rule of 5 Violations: 0; (3)ACD/BCF (pH 5.5): 1; (4)ACD/BCF (pH 7.4): 1; (5)ACD/KOC (pH 5.5):; (6)ACD/KOC (pH 7.4):; (7)#H bond acceptors: 3; (8)#H bond donors: 3; (9)#Freely Rotating Bonds: 3; (10)Polar Surface Area: 60.69 Å2; (11)Index of Refraction: 1.385; (12)Molar Refractivity: 10.083 cm3; (13)Molar Volume: 43.003 cm3; (14)Polarizability: 3.997×10-24cm3; (15)Surface Tension: 59.198 dyne/cm; (16)Density: 1.438 g/cm3; (17)Melting point: 169 °C; (18)Boiling point: 300 °C; (19)Water solubility: 49.5 g/L (20 °C); (20)Vapor pressure: 2.6 mm Hg ( 20 °C).

Preparation of OrthoOrthoboric acid: this chemical can be prepared by the reaction of Sodium tetraborate decahydrate with Hydrochloric acid:
Na2B4O7.10H2O + 2 HCl → 4 B(OH)3 + 2 NaCl + 5 H2O

Uses of OrthoOrthoboric acid: this chemical is used for minor burns or cuts as an antiseptic. It is also used for acne treatment as an anti-bacterial. Its buffer is widely used for the electrophoresis of nucleic acids. What's more, it can be used as an insecticide to prevent and destroy existing wet and dry rot in timbers. It also can be used to lubricate carrom boards. It is mainly used for the manufacture of monofilament fiberglass usually referred to as textile fiberglass in industry. And it is used as a neutron poison to slow down the rate at which fission is occurring in nuclear power plants. Furthermore, it is often used to reduce surface oxidation and firescale from forming on metals during annealing and soldering operations in combination with denatured alcohol. It is also used in the production of the glass in LCD flat panel displays.

When you are using this chemical, please be cautious about it as the following: it is irritating to eyes, respiratory system and skin. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. And you should wear suitable protective clothing, gloves and eye/face protection. Moreover, it is risk of impaired fertility. It is also possible risk of harm to the unborn child. Please do not breathe dust. And avoid exposure - obtain special instructions before use. Additionally, in case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)

People can use the following data to convert to the molecule structure.
(1)Canonical SMILES: B(O)(O)O
(2)InChI: InChI=1S/BH3O3/c2-1(3)4/h2-4H
(3)InChIKey: KGBXLFKZBHKPEV-UHFFFAOYSA-N

The toxicity data is as follows:

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
child LDLo skin 1500mg/kg (1500mg/kg) SENSE ORGANS AND SPECIAL SENSES: CONJUNCTIVE IRRITATION: EYE

LUNGS, THORAX, OR RESPIRATION: RESPIRATORY DEPRESSION

GASTROINTESTINAL: "HYPERMOTILITY, DIARRHEA"
Quarterly Journal of Pharmacy & Pharmacology. Vol. 6, Pg. 714, 1933.
child LDLo skin 4gm/kg/4D (4000mg/kg)   Muenchener Medicinische Wochenschrift. Vol. 52, Pg. 763, 1905.
child TDLo oral 500mg/kg (500mg/kg) GASTROINTESTINAL: NAUSEA OR VOMITING Journal of Toxicology, Clinical Toxicology. Vol. 24, Pg. 269, 1986.
dog LDLo oral 1780mg/kg (1780mg/kg) BRAIN AND COVERINGS: MENINGEAL CHANGES

LUNGS, THORAX, OR RESPIRATION: CYANOSIS

GASTROINTESTINAL: NAUSEA OR VOMITING
JAMA, Journal of the American Medical Association. Vol. 128, Pg. 266, 1945.
dog LDLo parenteral 1gm/kg (1000mg/kg) PERIPHERAL NERVE AND SENSATION: FLACCID PARALYSIS WITHOUT ANESTHESIA (USUALLY NEUROMUSCULAR BLOCKAGE) Rassegna di Terapia e Patologia Clinica. Vol. 1, Pg. 472, 1929.
dog LDLo subcutaneous 1gm/kg (1000mg/kg) BRAIN AND COVERINGS: MENINGEAL CHANGES

LUNGS, THORAX, OR RESPIRATION: CYANOSIS

GASTROINTESTINAL: NAUSEA OR VOMITING
JAMA, Journal of the American Medical Association. Vol. 128, Pg. 266, 1945.
guinea pig LD50 subcutaneous 1200mg/kg (1200mg/kg) BEHAVIORAL: TREMOR

GASTROINTESTINAL: "HYPERMOTILITY, DIARRHEA"

GASTROINTESTINAL: NAUSEA OR VOMITING
U.S. Army, Chemical Corps Medical Division Special Report. Vol. #2, Pg. 1950,
guinea pig LDLo oral 1gm/kg (1000mg/kg) GASTROINTESTINAL: NAUSEA OR VOMITING

GASTROINTESTINAL: OTHER CHANGES
Revista de la Asociacion Medica Argentina. Vol. 46, Pg. 1493, 1932.
infant LDLo oral 934mg/kg (934mg/kg)   JAMA, Journal of the American Medical Association. Vol. 90, Pg. 382, 1928.
infant LDLo skin 1200mg/kg (1200mg/kg) BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD

SKIN AND APPENDAGES (SKIN): "DERMATITIS, OTHER: AFTER SYSTEMIC EXPOSURE"
JAMA, Journal of the American Medical Association. Vol. 129, Pg. 332, 1945.
infant LDLo subcutaneous 1100mg/kg (1100mg/kg) BEHAVIORAL: TREMOR

GASTROINTESTINAL: NAUSEA OR VOMITING

GASTROINTESTINAL: "HYPERMOTILITY, DIARRHEA"
U.S. Army, Chemical Corps Medical Division Special Report. Vol. #2, Pg. 1950,
infant TDLo oral 800mg/kg/4W-I (800mg/kg) BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD

GASTROINTESTINAL: "HYPERMOTILITY, DIARRHEA"

GASTROINTESTINAL: NAUSEA OR VOMITING
Archives of Disease in Childhood. Vol. 58, Pg. 737, 1983.
man LDLo oral 429mg/kg (429mg/kg) CARDIAC: OTHER CHANGES

KIDNEY, URETER, AND BLADDER: "CHANGES IN TUBULES (INCLUDING ACUTE RENAL FAILURE, ACUTE TUBULAR NECROSIS)"
Journal of Toxicology, Clinical Toxicology. Vol. 31, Pg. 345, 1993.
man LDLo skin 2430mg/kg (2430mg/kg) GASTROINTESTINAL: "HYPERMOTILITY, DIARRHEA"

SKIN AND APPENDAGES (SKIN): PRIMARY IRRITATION: AFTER TOPICAL EXPOSURE
JAMA, Journal of the American Medical Association. Vol. 128, Pg. 266, 1945.
man LDLo unreported 147mg/kg (147mg/kg)   "Poisoning; Toxicology, Symptoms, Treatments," 2nd ed., Arena, J.M., Springfield, IL, C.C. Thomas, 1970Vol. 2, Pg. 73, 1970.
man TDLo unreported 170mg/kg (170mg/kg) BEHAVIORAL: WAKEFULNESS

BEHAVIORAL: ANOREXIA (HUMAN

GASTROINTESTINAL: NAUSEA OR VOMITING
Rassegna di Terapia e Patologia Clinica. Vol. 1, Pg. 472, 1929.
mouse LD50 intravenous 1240mg/kg (1240mg/kg) BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD

GASTROINTESTINAL: "HYPERMOTILITY, DIARRHEA"

LUNGS, THORAX, OR RESPIRATION: RESPIRATORY DEPRESSION
Journal of Pharmacology and Experimental Therapeutics. Vol. 134, Pg. 117, 1961.
mouse LD50 oral 3450mg/kg (3450mg/kg)   JAMA, Journal of the American Medical Association. Vol. 128, Pg. 266, 1945.
mouse LD50 subcutaneous 1740mg/kg (1740mg/kg)   JAMA, Journal of the American Medical Association. Vol. 128, Pg. 266, 1945.
mouse LDLo intraperitoneal 800mg/kg (800mg/kg) BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)

BEHAVIORAL: ATAXIA
"Boron, Metallo-Boron Compounds and Boranes," Adams, R.M., ed., New York, John Wiley & Sons, Inc., 1964Vol. -, Pg. 693, 1964.
rabbit LDLo intravenous 800mg/kg (800mg/kg) BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)

BEHAVIORAL: ATAXIA
"Boron, Metallo-Boron Compounds and Boranes," Adams, R.M., ed., New York, John Wiley & Sons, Inc., 1964Vol. -, Pg. 693, 1964.
rabbit LDLo oral 4gm/kg (4000mg/kg) BEHAVIORAL: TREMOR

GASTROINTESTINAL: "HYPERMOTILITY, DIARRHEA"

GASTROINTESTINAL: NAUSEA OR VOMITING
U.S. Army, Chemical Corps Medical Division Special Report. Vol. #2, Pg. 1950,
rabbit LDLo parenteral 670mg/kg (670mg/kg)   Rassegna di Terapia e Patologia Clinica. Vol. 1, Pg. 472, 1929.
rabbit LDLo subcutaneous 150mg/kg (150mg/kg)   "Abdernalden's Handbuch der Biologischen Arbeitsmethoden." Vol. 4, Pg. 1289, 1935.
rat LCLo inhalation 28mg/m3/4H (28mg/m3)   "Toxicometric Parameters of Industrial Toxic Chemicals Under Single Exposure," Izmerov, N.F., et al., Moscow, Centre of International Projects, GKNT, 1982Vol. -, Pg. 27, 1982.
rat LD50 intravenous 1330mg/kg (1330mg/kg) BEHAVIORAL: TREMOR

GASTROINTESTINAL: "HYPERMOTILITY, DIARRHEA"

GASTROINTESTINAL: NAUSEA OR VOMITING
U.S. Army, Chemical Corps Medical Division Special Report. Vol. #2, Pg. 1950,
rat LD50 oral 2660mg/kg (2660mg/kg)   JAMA, Journal of the American Medical Association. Vol. 128, Pg. 266, 1945.
rat LD50 subcutaneous 1400mg/kg (1400mg/kg) BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)

BEHAVIORAL: ATAXIA
"Boron, Metallo-Boron Compounds and Boranes," Adams, R.M., ed., New York, John Wiley & Sons, Inc., 1964Vol. -, Pg. 693, 1964.
women LDLo oral 200mg/kg (200mg/kg) BEHAVIORAL: FLUID INTAKE

GASTROINTESTINAL: "HYPERMOTILITY, DIARRHEA"

GASTROINTESTINAL: NAUSEA OR VOMITING
Lancet. Vol. 2, Pg. 162, 1917.
women TDLo oral 400mg/kg (400mg/kg) GASTROINTESTINAL: NAUSEA OR VOMITING

GASTROINTESTINAL: OTHER CHANGES

SKIN AND APPENDAGES (SKIN): "DERMATITIS, OTHER: AFTER SYSTEMIC EXPOSURE"
Gekkan Yakuji. Pharmaceuticals Monthly. Vol. 32, Pg. 804, 1990.

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