콘텐츠로 건너뛰기
Merck

1.12939

Lactose Standard 5 %

Certified Reference Material for Karl Fischer Titration Aquastar®

동의어(들):

Lactose Standard 5 %, Milk sugar, Lactobiose

조직 및 계약 가격을 보려면 로그인를 클릭합니다.

크기 선택

제품정보 (DICE 배송 시 비용 별도)

실험식(Hill 표기법):
C12H22O11 · xH2O
CAS 번호:
10039-26-6
Molecular Weight:
342.30 (anhydrous basis)
MDL number:
MFCD00064074
UNSPSC Code:
41116107
EC Index Number:
200-559-2
NACRES:
NA.24

주요 문서

모든 문서 보기
기술 서비스
도움이 필요하신가요? 저희 숙련된 과학자 팀이 도와드리겠습니다.
도움 문의
기술 서비스
도움이 필요하신가요? 저희 숙련된 과학자 팀이 도와드리겠습니다.
도움 문의

제품 이름

Lactose Standard 5 %, Certified Reference Material for Karl Fischer Titration Aquastar®

SMILES string

O1[C@H]([C@@H]([C@H]([C@H]([C@H]1CO)O)O)O)O[C@@H]2[C@H](O[C@@H]([C@@H]([C@H]2O)O)O)CO

InChI

1S/C12H22O11/c13-1-3-5(15)6(16)9(19)12(22-3)23-10-4(2-14)21-11(20)8(18)7(10)17/h3-20H,1-2H2/t3-,4-,5+,6+,7-,8-,9-,10-,11+,12+/m1/s1

InChI key

GUBGYTABKSRVRQ-XLOQQCSPSA-N

grade

certified reference material

agency

ISO 17025, 17034

product line

Aquastar®

form

solid

autoignition temp.

390 °C

potency

>10000 mg/kg LD50, oral (Rat)

reaction suitability

reaction type: water standard for Karl Fischer titration

packaging

ampule of 10 g

technique(s)

Karl-Fischer titration: suitable
titration: suitable

pH

4.0-6.5 (20 °C, 100 g/L in H2O)

mp

202 °C

bulk density

500 kg/m3

format

neat

storage temp.

15-25°C

Quality Level

300

관련 카테고리

Analysis Note

Water content: 5.00 - 5.20 %
Measurement method: coulometric according Karl Fischer
extended measuring uncertainly: +/- 0.05 %

Application

Lactose standard 5% is used as a certified reference material (CRM) for both the coulometric and volumetric Karl Fischer water determinations, with or without the Karl Fischer oven. It is particularly suitable when the working medium used consists of solvents mixtures in which sodium tartrate dihydrate is slightly soluble. And it is used as an oven standard in the preferred temperature range of 140°C -190°C.

Features and Benefits

  • Available in a secure plastic bottle with the material subjected to stability and homogeneity studies, following ISO 17034 and ISO Guide 35
  • High-quality offering accurate and reliable results
  • Accompanied with a comprehensive and batch-specific digital certificate of analysis (CoA) for an effective quality management system
  • Measured and qualified in an ISO/IEC 17025 and ISO 17034 accredited laboratory

General description

The lactose standard 5% is a solid standard, prepared gravimetrically from high-purity reagents. It is analyzed in an ISO/IEC 17025 and ISO 17034 accredited calibration laboratory. Its water content of 5% is measured by the coulometric Karl Fischer oven method at 150°C with an extraction time of 300 seconds.

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 https://www.sigmaaldrich.com/US/en/documents-search to view certified values, including uncertainty and expiry date.

Other Notes

Replaces: 1.12939.0010

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

AQUASTAR is a registered trademark of Merck KGaA, Darmstadt, Germany

저장 등급

11 - Combustible Solids

wgk

WGK 2

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.

이 제품을 이미 가지고 계십니까?

문서 라이브러리에서 최근에 구매한 제품에 대한 문서를 찾아보세요.

문서 라이브러리 방문

국제 무역 품목 번호

SKUGTIN
1.12939.001304054839964824
1.12939.001004022536146072

자사의 과학자팀은 생명 과학, 재료 과학, 화학 합성, 크로마토그래피, 분석 및 기타 많은 영역을 포함한 모든 과학 분야에 경험이 있습니다..

고객지원팀으로 연락바랍니다.