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LC1129 di-Boron trioxide
for silicate analysis


Order number Packaging Quantity Price €
AC28129 Plastic bottle 1 kg 174.60


Product information
Synonyms Boric anhydride
Hill Formula B2O3
HS Code 2810 00 10
EC number 215-125-8
Molar mass 69.61 g/mol
EC index number 005-008-00-8
CAS number 1303-86-2


Chemical and physical data
Solubility 36 g/l (25 °C)
Melting point 450 °C
Molar mass 69.61 g/mol
Density 2.46 g/cm3 (20 °C)
Bulk density 900 – 1100 kg/m3
pH value 4 (10 g/l, H2O, 25 °C)
Boiling point 1860 °C


Safety information according to GHS
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
Hazard Pictogram(s)

RTECS ED7900000
Storage class 6.1B Non combustible substances, toxic
WGK WGK 1 slightly water endangering
Disposal 14
Inorganic salts: Container I. Neutral solutions of the these salts: Container D. Before placing in Container D, check the pH with pH-Universal indicator strips (Item No. 109535).


Safety information
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).
Categories of danger toxic for reproduction
Hazard Symbol



Toxicological data
LD 50 oral LD50 rat 3150 mg/kg


Chloride (Cl) ≤ 0.002 %
Heavy metals (as Pb) ≤ 0.002 %
Ca (Calcium) ≤ 0.002 %
Fe (Iron) ≤ 0.0005 %
K (Potassium) ≤ 0.003 %
Mg (Magnesium) ≤ 0.0005 %
Na (Sodium) ≤ 0.003 %
Subst. not made volatile by methanolic hydrochloric acid (as SO4) ≤ 0.05 %




– as quinine at 365 nm