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Merck

1.02408

Tris(hydroxymethyl)aminomethane

volumetric standard, secondary reference material for acidimetry, traceable to NIST Standard Reference Material (SRM) Certipur® Reag. Ph Eur,Reag. USP

Synonim(y):

Tris Base, Tris(hydroxymethyl)aminomethane, 2-Amino-2-(hydroxymethyl)-1,3-propanediol, THAM, Tris base, Trometamol

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Wybierz wielkość

80 G

567,00 zł

80 G

622,00 zł

567,00 zł


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Informacje o tej pozycji

Wzór liniowy:
NH2C(CH2OH)3
Numer CAS:
Masa cząsteczkowa:
121.14
UNSPSC Code:
41116107
NACRES:
NA.24
EC Index Number:
201-064-4
MDL number:
Beilstein/REAXYS Number:
741883

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InChI key

LENZDBCJOHFCAS-UHFFFAOYSA-N

SMILES string

NC(CO)(CO)CO

InChI

1S/C4H11NO3/c5-4(1-6,2-7)3-8/h6-8H,1-3,5H2

agency

ISO 17025, reag. Ph. Eur., reag. USP

vapor pressure

0.0267 hPa ( 20 °C)

product line

Certipur®

form

solid

potency

>5000 mg/kg LD50, oral (Rat), >5000 mg/kg LD50, skin (Rat)

technique(s)

titration: suitable

pH

10.2-10.6 (20 °C, 6 g/L in H2O)

useful pH range

7-9

pKa (25 °C)

8.1

bp

219-220 °C/10 mmHg (lit.), 219-220 °C/13.3 hPa

mp

167-172 °C (lit.)

solubility

678 g/L

density

1.35 g/cm3 at 23 °C

bulk density

840 kg/m3

storage temp.

15-25°C

Quality Level

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1.083822528591.08387
technique(s)

titration: suitable

technique(s)

-

technique(s)

affinity chromatography: suitable

technique(s)

-

agency

ISO 17025

agency

reag. Ph. Eur.

agency

-

agency

-

vapor pressure

0.0267 hPa ( 20 °C)

vapor pressure

0.0267 hPa ( 20 °C)

vapor pressure

-

vapor pressure

0.0267 hPa ( 20 °C)

form

solid

form

solid

form

crystalline

form

solid

potency

>5000 mg/kg LD50, oral (Rat)

potency

>5000 mg/kg LD50, oral (Rat), >5000 mg/kg LD50, skin (Rat)

potency

-

potency

>5000 mg/kg LD50, oral (Rat), >5000 mg/kg LD50, skin (Rat)

pH

10.2-10.6 (20 °C, 6 g/L in H2O)

pH

10.2-10.6 (20 °C, 6 g/L in H2O)

pH

-

pH

10.2-10.6 (20 °C, 6 g/L in H2O)

General description

Tris(hydroxymethyl)aminomethane is a volumetric standard manufactured under rigorous conditions and measured with the highest possible precision. Its mass fraction is determined by potentiometric titration, and it is qualified in a DIN EN ISO/IEC 17025 accredited laboratory.

Please visit ISO certificates and Site Quality Self-Assessments to access the current certificates of accreditation.

In our effort to be more sustainable, we′re going digital with COAs-download them directly from our website. Download your certificate at http://www.sigma-aldrich.com to view certified values, including uncertainty and expiry date.

Application

It finds its use as a certified reference material (CRM) for the standardization of volumetric solutions in acidimetric titrations, according to USP and Ph. Eur.

Features and Benefits

  • Available as a solid in a secure glass bottle to ensure its stability for the entire shelf life until opened.
  • Certified reference material according to ISO 17034
  • High-purity material traceable to NIST SRMs
  • Qualified in a DIN EN ISO/IEC 17025 accredited laboratory
  • In accordance with the chapter reagents of USP and Ph. Eur
  • High-quality offering accurate titer determinations

Packaging

SKU-pack size numbers ending with a "3" are SmartChemicals with an RFID tag on the label for seamless data transfer to the instrument, e.g. xxxxxx1003 or xxxxxxx 4003. More information on www.sigmaaldrich.com/SmartChemicals

Legal Information

CERTIPUR is a registered trademark of Merck KGaA, Darmstadt, Germany
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related product

Numer produktu
Opis
Cennik

Klasa składowania

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable


Certyfikaty analizy (CoA)

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Produkty

Określenie miana lub standaryzacja roztworu do miareczkowania jest niezbędna do uzyskania dokładnych i wiarygodnych wyników miareczkowania.

The titer determination or standardization of a titration solution is essential for accurate and reliable titration results.

SmartChemicals enable wireless CoA data transfer, reducing human error in titration experiments.

Questions

1–2 of 2 Questions  
  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf

      Helpful?

  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

      Helpful?

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