Description
Catalogue Number 100165
Synonyms Orthoboric acid, Trihydroxidoboron
Product Information
CAS number 10043-35-3
EC index number 005-007-00-2
EC number 233-139-2
Grade ACS,ISO,Reag. Ph Eur
Hill Formula BH₃O₃
Chemical formula H₃BO₃
Molar Mass 61.83 g/mol
HS Code 2810 00 90
Quality Level MQ300
Physicochemical Information
Density 1.489 g/cm3 (23 °C)
pH value 3.8 – 4.8 (33 g/l, H₂O, 20 °C)
Vapor pressure <1 Pa (25 °C) Bulk density 400 - 600 kg/m3 Solubility 49.2 g/l Toxicological Information LD 50 oral LD50 Rat 2660 mg/kg LD 50 dermal LD50 Rat > 2000 mg/kg
Safety Information according to GHS
Hazard Pictogram(s) Hazard Pictogram(s)
Hazard Statement(s) H360FD: May damage fertility. May damage the unborn child.
Precautionary Statement(s) P201: Obtain special instructions before use.
P308 + P313: IF exposed or concerned: Get medical advice/ attention.
Signal Word Danger
RTECS ED4550000
Storage class 6.1 D Non combustible, acute toxicity cat. 3 / toxic or substances with chronic effects
WGK WGK 1 slightly hazardous to water
Disposal 28
Aqueous solutions: Container D.
Safety Information
Hazard Symbols Hazard SymbolsToxic
Categories of danger toxic for reproduction
R Phrase R 60-61
May impair fertility.May cause harm to the unborn child.
S Phrase S 53-45
Avoid exposure – obtain special instructions before use.In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).
Storage and Shipping Information
Storage Store at +2°C to +30°C.
Specifications
Assay (alkalimetric) 99.5 – 100.5 %
Identity passes test
Appearance of solution passes test
pH-value (3.3 %, water) 3.8 – 4.8
Chloride (Cl) ≤ 0.0003 %
Phosphate (PO₄) ≤ 0.0005 %
Sulfate (SO₄) ≤ 0.0005 %
Solubility in ethanol passes test
In methanol insoluble matter ≤ 0.005 %
Heavy metals (as Pb) ≤ 0.0005 %
Ca (Calcium) ≤ 0.002 %
Fe (Iron) ≤ 0.0001 %
Pb (Lead) ≤ 0.001 %
Organic impurities passes test
Nonvolatile with methanol ≤ 0.05 %
Corresponds to ACS,ISO,Reag. Ph Eur