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/449/386/product-dating-information-mk.pdf
383120
Sulfamic acid
ACS reagent, 99.3%
Synonym(s):
Amidosulfonic acid
About This Item
Recommended Products
grade
ACS reagent
Quality Level
Assay
99.3%
99.3-100.3% dry basis (ACS specification)
form
crystals
technique(s)
titration: suitable
impurities
≤0.01% insolubles
ign. residue
≤0.01%
mp
215-225 °C (dec.) (lit.)
solubility
water: 213 g/L at 20 °C
density
2.151 g/cm3 at 25 °C
anion traces
chloride (Cl-): ≤0.001%
sulfate (SO42-): ≤0.05%
cation traces
Fe: ≤5 ppm
heavy metals (as Pb): ≤0.001%
SMILES string
NS(O)(=O)=O
InChI
1S/H3NO3S/c1-5(2,3)4/h(H3,1,2,3,4)
InChI key
IIACRCGMVDHOTQ-UHFFFAOYSA-N
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General description
Application
- As a titrant in the determination of the burette injection volume and chemical calibration factor.[8]
- To neutralize excess nitrous acid in the colorimetric paracetamol assay by modified Glynn and Kendal colorimetric method.[9]
- To prevent endogenous mercury (Hg) loss during the urine Hg measurement by inductively coupled plasma mass spectrometry (ICP-MS) method.[10]
- As an acid catalyst and a hypochlorite scavenger in the chlorite oxidation of dialdehyde cellulose (DAC).[3]
- As a heterogeneous catalyst in the synthesis of polyhydroquinoline derivatives by Hantzsch condensation reaction.[11]
- As catalyst in the degradation of bamboo fiber to 5-hydroxymethylfurfural (HMF).[12]
- As an acid reagent in the determination of silicates in water samples based on centrifugal microfluidics.[13]
- As catalyst in the synthesis of deazaoxaflavin at room temperature.[14]
Signal Word
Warning
Hazard Statements
Precautionary Statements
Hazard Classifications
Aquatic Chronic 3 - Eye Irrit. 2 - Skin Irrit. 2
Storage Class Code
8B - Non-combustible corrosive hazardous materials
WGK
WGK 1
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
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How can I determine the shelf life / expiration / retest date of this product?
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How is shipping temperature determined? And how is it related to the product storage temperature?
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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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