Bu ürün, iyot numarasının belirlenmesi için kullanılan Merck 109163 Wijs çözümüdür. İçeriğindeki iyot miktarı 0.1 mol/l'dir ve 1 litrelik Titripur® ambalajında bulunmaktadır. Bu çözüm, endüstriyel kalite kontrolü için uygundur ve hassas sonuçlar elde etmek için kullanılır.

Description
Catalogue Number	109163
Synonyms	Iodine solution acc. to Wijs

Product Information
HS Code	3822 19 90
Quality Level	MQ200

Physicochemical Information
Density	1.06 g/cm3 (20 °C)
Flash point	40 °C
pH value	<1 (H₂O, 20 °C)

Safety Information according to GHS
Hazard Pictogram(s)
Hazard Statement(s)	H226: Flammable liquid and vapour. H314: Causes severe skin burns and eye damage.
Precautionary Statement(s)	P210: Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking. P233: Keep container tightly closed. P240: Ground and bond container and receiving equipment. 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. P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Signal Word	Danger
Storage class	3 Flammable liquids
WGK	WGK 2 obviously hazardous to water
Disposal	12 Inorganic acids and anhydrides thereof should first be diluted or hydrolyzed by stirring carefully into ice water and then neutralized (protective gloves, fume cupboard!) with sodium hydroxide solution (Cat. No. 105587). Before filling into container D, check the pH with pH universal indicator strips (Cat. No. 109535). Fuming sulfuric acid should be carefully stirred dropwise into 40 % sulfuric acid (Cat. No. 109286). Ensure that plenty of ice is available for cooling! When sufficiently cool, treat the highly concentrated sulfuric acid as described above. Analogous to this procedure, other anhydrides can be converted into their corresponding acids. Acid gases (e.g. hydrogen halide, chlorine, phosgene, sulfur dioxide) can be introduced into dilute sodium hydroxide solution and after neutralization disposed of in container D.

Safety Information
Categories of danger	flammable, corrosive

Storage and Shipping Information
Storage	Store at +15°C to +25°C.

Transport Information
Declaration (railroad and road) ADR, RID	UN 2789 , 8 (3), II
Declaration (transport by air) IATA-DGR	UN 2789 , 8 (3), II
Declaration (transport by sea) IMDG-Code	UN 2789 , 8 (3), II, Segregation Group: 1 (Acids)

Specifications
Form	liquid
Amount-of-substance concentration	0.0994 - 0.1006 mol/l
Measurement uncertainty	+/- 0.0004
Traceability	NIST SRM
The stated batch and specification values for the amount of substance concentration are valid at the time of bottling. The amount-of-substance concentration of this volumetric solution is analyzed by our quality control laboratory of Merck KGaA, Darmstadt, Germany according to DIN EN ISO/IEC 17025. The concentration is determined by volumetric titration and refers to 20°C. The amount-of-substance concentration of this volumetric solution is determined with standardized sodium thiosulfate solution (article number 1.09147). The sodium thiosulfate solution is standardized and traceable to a primary standard reference material (SRM) from the National Institute of Standards and Technology, Gaithersburg, USA (NIST SRM 136 potassium dichromate) by means of volumetric standard potassium iodate (article number 1.02404), 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 concentration of this volumetric solution decreases over time, due to its chemical properties. If high accuracy is expected, the titer, being a corrective factor that compensates for this effect as well as variations of equipment, personal handling, temperature and other laboratory conditions, must be determined directly after opening a new bottle and should be verified at regular intervals.

Global Trade Item Number
Catalogue Number	GTIN
1091631000	04022536111438
1091631003	04054839014086
1091632500	04022536111452

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Etiketler :

wijs solution formula wijs merck

Merck 109163 Wijs Solution 2.5L - For Determination of Iodine Number c(ICl)=0.1 mol/L Titripur®

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