Skip to Content
Merck
All Photos(1)

Key Documents

71679

Sigma-Aldrich

Sodium bitartrate monohydrate

BioUltra, ≥99.0% (T)

Synonym(s):

L-(+)-Tartaric acid monosodium salt, Sodium hydrogen tartrate monohydrate

Sign Into View Organizational & Contract Pricing


About This Item

Empirical Formula (Hill Notation):
C4H5NaO6 · H2O
CAS Number:
Molecular Weight:
190.08
Beilstein:
6099125
EC Number:
MDL number:
UNSPSC Code:
12161700
PubChem Substance ID:

product line

BioUltra

Quality Level

Assay

≥99.0% (T)

form

powder or crystals

optical activity

[α]20/D +22±1°, c = 1% in H2O

impurities

insoluble matter, passes filter test

pH

2.5-4.0 (25 °C, 0.1 M in H2O)

solubility

H2O: 0.1 M at 20 °C, clear, colorless

anion traces

chloride (Cl-): ≤50 mg/kg
sulfate (SO42-): ≤50 mg/kg

cation traces

Al: ≤5 mg/kg
As: ≤0.1 mg/kg
Ba: ≤5 mg/kg
Bi: ≤5 mg/kg
Ca: ≤50 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
K: ≤50 mg/kg
Li: ≤5 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Mo: ≤5 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Sr: ≤5 mg/kg
Zn: ≤5 mg/kg

λ

0.1 M in H2O

UV absorption

λ: 260 nm Amax: 0.01
λ: 280 nm Amax: 0.01

SMILES string

[Na+].[H]O[H].OC(C(O)C([O-])=O)C(O)=O

InChI

1S/C4H6O6.Na.H2O/c5-1(3(7)8)2(6)4(9)10;;/h1-2,5-6H,(H,7,8)(H,9,10);;1H2/q;+1;/p-1

InChI key

LLVQEXSQFBTIRD-UHFFFAOYSA-M

Looking for similar products? Visit Product Comparison Guide

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service