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N9877

Nitrilotriacetic acid

Sigma Grade, ≥99%

Synonym(s):

N,N-Bis(carboxymethyl)glycine, NTA, Tris(carboxymethyl)amine

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About This Item

Linear Formula:
N(CH2COOH)3
CAS Number:
Molecular Weight:
191.14
UNSPSC Code:
12352106
NACRES:
NA.31
PubChem Substance ID:
EC Number:
205-355-7
Beilstein/REAXYS Number:
1710776
MDL number:
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grade

Sigma Grade

Quality Segment

assay

≥99%

form

powder

reaction suitability

reagent type: reductant

pH

1.7-2.7 (23 °C, 10 g/L)

mp

245 °C (dec.) (lit.)

solubility

1 M NaOH: 100 mg/mL, clear to very slightly hazy, colorless to light yellow

SMILES string

OC(=O)CN(CC(O)=O)CC(O)=O

InChI

1S/C6H9NO6/c8-4(9)1-7(2-5(10)11)3-6(12)13/h1-3H2,(H,8,9)(H,10,11)(H,12,13)

InChI key

MGFYIUFZLHCRTH-UHFFFAOYSA-N

Application

An excellent chelating agent.

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This Item
7256072559N0253
grade

Sigma Grade

grade

ACS reagent

grade

-

grade

Sigma Grade

assay

≥99%

assay

≥99.0% (T)

assay

≥99.0% (T)

assay

≥98%

Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

200

pH

1.7-2.7 (23 °C, 10 g/L)

pH

-

pH

1.7-2.7 (23 °C, 10 g/L)

pH

-

solubility

1 M NaOH: 100 mg/mL, clear to very slightly hazy, colorless to light yellow

solubility

-

solubility

0.1 M NaOH: 0.1 M at 20 °C, clear, colorless

solubility

-

form

powder

form

powder

form

powder

form

powder


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pictograms

Health hazardExclamation mark

signalword

Warning

Hazard Classifications

Acute Tox. 4 Oral - Carc. 2 - Eye Irrit. 2

Storage Class

11 - Combustible Solids

wgk

WGK 2

flash_point_f

212.0 °F - closed cup

flash_point_c

100 °C - closed cup

ppe

Eyeshields, Gloves, type P3 (EN 143) respirator cartridges



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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

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  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

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