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1.02403

Potassium dichromate

volumetric standard, secondary reference material for redox titration, traceable to NIST SRM Certipur® Reag. USP

동의어(들):

Potassium dichromate, Potassium bichromate, Potassium pyrochromate

조직 및 계약 가격을 보려면 로그인를 클릭합니다.

크기 선택

보기 변경
팩 크기SKU재고 정보가격 (VAT 별도)
80 g

예상 입고일2026년 4월 23일재고 수량 조회Songdo warehouse

₩188,080
80 g

예상 입고일2026년 7월 27일재고 수량 조회Songdo warehouse

₩190,617

제품정보 (DICE 배송 시 비용 별도)

실험식(Hill 표기법):
Cr2K2O7
CAS 번호:
Molecular Weight:
294.18
UNSPSC Code:
41116107
EC Index Number:
231-906-6
NACRES:
NA.24
MDL number:

₩188,080


예상 입고일2026년 4월 23일세부사항


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Quality Level

agency

ISO 17025, reag. USP

product line

Certipur®

form

solid

potency

90.5 mg/kg LD50, oral (Rat), 1170 mg/kg LD50, skin (Rat)

technique(s)

titration: suitable

pH

3.6 (100 g/L in H2O)

bp

>500 °C/1013 hPa

mp

398 °C

density

2.7 g/cm3 at 20 °C

bulk density

1250 kg/m3

storage temp.

15-25°C

SMILES string

[Cr](=O)(=O)([O-])O[Cr](=O)(=O)[O-].[K+].[K+]

InChI

1S/2Cr.2K.7O/q;;2*+1;;;;;;2*-1

InChI key

KMUONIBRACKNSN-UHFFFAOYSA-N

General description

Potassium dichromate is a volumetric standard manufactured under stringent 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 redox 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

유사한 품목 비교

전체 비교 보기

차이점 표시

1 of 1

이 품목
42019P25881.04865
technique(s)

titration: suitable

technique(s)

titration: suitable

technique(s)

-

technique(s)

-

product line

Certipur®

product line

-

product line

BioXtra

product line

EMSURE®

mp

398 °C

mp

398 °C (lit.)

mp

398 °C (lit.)

mp

398 °C

form

solid

form

-

form

powder or crystals

form

crystalline

potency

90.5 mg/kg LD50, oral (Rat), 1170 mg/kg LD50, skin (Rat)

potency

-

potency

-

potency

90.5 mg/kg LD50, oral (Rat), 1170 mg/kg LD50, skin (Rat)

storage temp.

15-25°C

storage temp.

-

storage temp.

-

storage temp.

2-30°C


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Danger

Hazard Classifications

Acute Tox. 2 Inhalation - Acute Tox. 3 Oral - Acute Tox. 4 Dermal - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 1B - Eye Dam. 1 - Muta. 1B - Ox. Sol. 2 - Repr. 1B - Resp. Sens. 1 - Skin Corr. 1B - STOT RE 1 Inhalation - STOT SE 3

target_organs

Cardio-vascular system, Respiratory system

저장 등급

5.1B - Oxidizing hazardous materials

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable



시험 성적서(COA)

제품의 로트/배치 번호를 입력하여 시험 성적서(COA)을 검색하십시오. 로트 및 배치 번호는 제품 라벨에 있는 ‘로트’ 또는 ‘배치’라는 용어 뒤에서 찾을 수 있습니다.

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문서 라이브러리에서 최근에 구매한 제품에 대한 문서를 찾아보세요.

문서 라이브러리 방문


문서

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

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





국제 무역 품목 번호

SKUGTIN
102403008004022536555799
102403008304054839650543

질문

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

    1 답변
    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

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

    1 답변
    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

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