Description

Catalogue Number

109137

Product Information

CAS number

1310-73-2

Grade

Reag. Ph Eur,Reag. USP

HS Code

2815 12 00

Quality Level

MQ200

Physicochemical Information

Density

1.04 g/cm3 (20 °C)

pH value

13.7 (H₂O, 20 °C)

Safety Information according to GHS

Hazard Pictogram(s)

Hazard Statement(s)

H290: May be corrosive to metals.

H314: Causes severe skin burns and eye damage.

Precautionary Statement(s)

P234: Keep only in original packaging.

P280: Wear protective gloves/ protective clothing/ eye protection/ face protection/ hearing protection.

P303 + P361 + P353: IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water.

P304 + P340 + P310: IF INHALED: Remove person to fresh air and keep comfortable for breathing. Immediately call a POISON CENTER/doctor.

P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

P363: Wash contaminated clothing before reuse.

Signal Word

Danger

Storage class

8B Non-combustible, corrosive hazardous materials

WGK

WGK 1 slightly hazardous to water

Disposal

13

Bases and alcoholates should be diluted if necessary by carefully stirring them into water and then neutralized (protective gloves, fume cupboard!) with hydrochloric acid (Cat. No. 100312). Before placing in container D, check the pH with pH universal indicator strips (Cat. No. 109535).

Safety Information

Categories of danger

corrosive

Storage and Shipping Information

Storage

Store at +2°C to +30°C.

Transport Information

Declaration (railroad and road) ADR, RID

UN 1824 , 8, II

Declaration (transport by air) IATA-DGR

UN 1824 , 8, II

Declaration (transport by sea) IMDG-Code

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

Specifications

Form

liquid

Amount-of-substance concentration

0.995 - 1.005

Measurement uncertainty

+/- 0.003

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.