PRODUCT CODE:

141015

Boric Acid (RFE, USP-NF, BP, Ph. Eur.) PRS-CODEX

H₃BO₃

H₃BO₃

M.= 61,83	CAS [10043-35-3]	EINECS 233-139-2
NC 2810 00 90

SYNONYMS: Boracic Acid · ortho-Boric Acid ·
PHYSICAL DATA: White crystalline powder · Solubility in water at 20 ºC 50 g/l · M. P.: 171 ºC · Thermal decom. above 171 ºC ·
APPLICATIONS: Analytical reagent: USP 31 · BP 2008 · Ph. Eur. 6.0 ·
BIBLIOGRAPHY: Merck Index 13 , 1326 · Sax BMC 000 · Safety 2 , 478 A · Römpp 8 , 498 · Fieser 1 , 63 2 , 32 3 , 29 4 , 41 5 , 48 9 , 59 11 , 70 · ACS IX , 192 X , 208 · ISO 6353-3/1987 R - 50 , 13 · USP- NF 31 · BP 2008 · Ph. Eur. 5.0 (2005) 6.0 (2008) · JP XIV , 284 · Directive 96/77 EC , 33 ·

HAZARDOUS: RTECS: ED 4550000 · LD₅₀ oral rat 2660 mg/Kg · LD L₀ oral wmn 200 mg/Kg · LC L₀ ihl rat 28 mg/m³/4h ·

R: 60-61
S: 53-45

SPECIFICATIONS:

Assay (Acidim.) calc. a.d.s	99,5-100,5%
Identity according to Pharmacopoeias	p/t.
pH of 3,3% solution	3,8-4,8
MAXIMUM LIMIT OF IMPURITIES
Appearance of solution	p/t.
Insoluble matter in C₂H₅OH	p/t.
Loss on drying	0,5 %
Residue on ignition (CH₃OH+HCl) (as SO₄)	0,1 %
Residual solvents (Ph.Eur./USP)	p/t.
Organic substances	p/t.
Chloride (Cl)	0,002 %
Phosphate (PO₄)	0,002 %
Sulphate (SO₄)	0,045 %
Heavy metals (as Pb)	0,0015 %
As	0,0005 %
Cu	0,001 %
Fe	0,001 %
Mg	0,005 %
Ni	0,001 %
Pb	0,001 %

Complies USP 29 specifications