Description

Catalogue Number

109141

Product Information

CAS number

1310-73-2

Grade

Reag. Ph Eur,Reag. USP

HS Code

2815 12 00

Quality Level

MQ200

Physicochemical Information

Density

1.00 g/cm3 (20 °C)

pH value

12.7 (H₂O, 20 °C)

Safety Information according to GHS

Hazard Pictogram(s)

Hazard Statement(s)

H290: May be corrosive to metals.

Precautionary Statement(s)

P234: Keep only in original packaging.

P390: Absorb spillage to prevent material damage.

Signal Word

Warning

Storage class

8B Non-combustible, corrosive hazardous materials

WGK

NWG not water endangering

Storage and Shipping Information

Storage

Store at +2°C to +30°C.

Transport Information

Declaration (railroad and road) ADR, RID

UN 1824 , 8, III

Declaration (transport by air) IATA-DGR

UN 1824 , 8, III

Declaration (transport by sea) IMDG-Code

UN 1824 , 8, III, Segregation Group: 18 (Alkalis)

Specifications

Form

liquid

Amount-of-substance concentration

0.0995 - 0.1005

Measurement uncertainty

+/- 0.0003

Traceability

NIST SRM

Accreditation: This volumetric solution is analyzed by our calibration laboratory D-K-15185-01-00 which is accredited according to DIN EN ISO/IEC 17025 for analysis of amount-of-substance concentrations in volumetric solutions by DAkkS (Deutsche Akkreditierungsstelle - German National Accreditation Body). The accreditation certificate can be found at www.sigmaaldrich.com/ISO17025.

The concentration is determined by volumetric titration and refers to 20°C.

The amount-of-substance concentration of this volumetric solution is traceable to a primary standard reference material (SRM) from the National Institute of Standards and Technology, Gaithersburg, USA (NIST SRM 84 potassium hydrogen phthalate) by means of volumetric standard potassium hydrogen phthalate (article number 1.02400), certified reference material according to ISO 17034, analyzed by our accredited calibration laboratory of Merck KGaA, Darmstadt, Germany according to DIN EN ISO/IEC 17025. The uncertainty is expressed as expanded measurement uncertainty with a coverage factor k=2 covering a confidence level of 95%.

Note: The titer is a correction factor to correct for variations of the volumetric solution, the titration equipment, the temperature and other laboratory conditions. For correct titration results it is recommended to determine a titer with the laboratory specific equipment and under laboratory specific conditions directly after opening a new bottle and at regular time intervals.