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
86090
Sulfanilic acid
≥99.0% (T), powder or crystals, purum p.a.
Synonym(s):
4-Aminobenzenesulfonic acid, Aniline-4-sulfonic acid
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Product Name
Sulfanilic acid, puriss. p.a., ≥99.0% (T)
InChI key
HVBSAKJJOYLTQU-UHFFFAOYSA-N
InChI
1S/C6H7NO3S/c7-5-1-3-6(4-2-5)11(8,9)10/h1-4H,7H2,(H,8,9,10)
SMILES string
Nc1ccc(cc1)S(O)(=O)=O
grade
puriss. p.a.
assay
≥99.0% (T)
form
powder or crystals
impurities
≤1% ortho/meta-aminobenzene sulfonic acid (HPLC)
ign. residue
≤0.01% (as SO4)
mp
>300 °C (lit.)
anion traces
chloride (Cl-): ≤20 mg/kg, nitrite (NO2-): ≤0.5 mg/kg, sulfate (SO42-): ≤50 mg/kg
cation traces
Ca: ≤10 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg, Cr: ≤5 mg/kg, Cu: ≤5 mg/kg, Fe: ≤5 mg/kg, K: ≤50 mg/kg, Mg: ≤5 mg/kg, Mn: ≤5 mg/kg, Na: ≤50 mg/kg, Ni: ≤5 mg/kg, Pb: ≤5 mg/kg, Zn: ≤5 mg/kg
functional group
sulfonic acid
Quality Level
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This Item | |||
|---|---|---|---|
| grade puriss. p.a. | grade - | grade - | grade - |
| assay ≥99.0% (T) | assay 98.0-102.0% (ACS specification), 99% | assay 99.0-100.5% | assay - |
| Quality Level 200 | Quality Level 200 | Quality Level - | Quality Level 300 |
| form powder or crystals | form powder | form powder | form - |
| anion traces chloride (Cl-): ≤20 mg/kg, sulfate (SO42-): ≤50 mg/kg, nitrite (NO2-): ≤0.5 mg/kg | anion traces chloride (Cl-): ≤0.002%, nitrite (NO2-): ≤0.5 ppm, sulfate (SO42-): ≤0.01% | anion traces - | anion traces - |
| cation traces Cd: ≤5 mg/kg, Cr: ≤5 mg/kg, Fe: ≤5 mg/kg, Mg: ≤5 mg/kg, Na: ≤50 mg/kg, Pb: ≤5 mg/kg, Ca: ≤10 mg/kg, Cu: ≤5 mg/kg, Mn: ≤5 mg/kg, Zn: ≤5 mg/kg, Co: ≤5 mg/kg, Ni: ≤5 mg/kg, K: ≤50 mg/kg | cation traces - | cation traces - | cation traces - |
Application
signalword
Warning
hcodes
Hazard Classifications
Eye Irrit. 2 - Skin Irrit. 2 - Skin Sens. 1
Storage Class
11 - Combustible Solids
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
dust mask type N95 (US), Eyeshields, Faceshields, Gloves
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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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