TRIS (Hydroxymethyl) Aminomethane for analysis, ACS 1000 g
PRODUCT CODE: 131940
Tris (Hydroxymethyl) Aminomethane for analysis, ACS
C4H11NO3
M.= 121,14 CAS [77-86-1] EINECS 201-064-4
TARIC 2922 19 85 90
SYNONYMS: 2-Amino-2-Hydroxymethyl-1,3-Propanediol, THAM, Tris, Trizma, Trometamol, Tromethamine, Tromethylol Aminomethane•
PHYSICAL DATA: crystalline powder, White, Soluble in water 550 g/l at 25 °C M.P.: 171 - 172 °C • B.P.: 219 - 220 °C • pH(0,1 M)10,4 • pKa20 °C8,3 •
BIBLIOGRAPHY: Merck Index 13, 9.842 Sax TEM500 • Safety 2 , 3532 A • Beilstein 4 , 303 IV , 1903 • BRN 741883 • ACS X710IX6801 (15-10-2000) • BP. 2014 • USP 37 • Ph. Eur. 7.0 (2013) 8.0 (2014) • Royal Decree I1725 •
HAZARDOUS: RTECS: TY 2900000 • LD L0 oral rbt 1.000 mg/kg • LD50 oral rat 5.900 mg/kg •
H: H319 • H315 •
P: P264 • P280 • P302+P352 • P305+P351+P338 • P332+P313 • P501 • P337+P313 • P362 •
SPECIFICATIONS:
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Assay (Acidim.) (a.d.s.)
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99,8-100,1%
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Identity :
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Identity
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IR passes test
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pH sol. 0,05 mol/l
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10,2-10,6
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Melting range
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169-171°C
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MAXIMUM LIMIT OF IMPURITIES
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ABS
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at λ 290 nm 40% sol. in water
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0,2
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Insoluble matter in H2O
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0,005 %
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Residue on ignition (as SO4)
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0,01 %
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Chloride (Cl)
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0,0005%
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Water (H2O)
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0,5 %
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Heavy metals (as Pb)
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0,0005%
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As
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0,00005 %
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Ca
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0,001 %
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Cd
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0,0001 %
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Co
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0,0001 %
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Cr
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0,0001 %
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Cu
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0,0002 %
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Fe
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0,0005 %
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K
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0,001 %
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Mg
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0,001 %
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Na
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0,001 %
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Ni
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0,0005 %
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Pb
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0,0002 %
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Zn
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0,0002 %
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