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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
71690
Sodium hydroxide
puriss. p.a., ACS reagent, K ≤0.02%, ≥98.0% (T), pellets
Synonym(s):
Caustic soda
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About This Item
Quality Segment
vapor density
>1 (vs air)
vapor pressure
<18 mmHg ( 20 °C), 3 mmHg ( 37 °C)
grade
ACS reagent, puriss. p.a.
assay
≥98.0% (T)
form
pellets
technique(s)
cell culture | plant: suitable
impurities
≤0.0003% total nitrogen (N), ≤0.0005% silicon dioxide (SiO2), ≤1.0% sodium carbonate (Na2CO3)
mp
318 °C (lit.)
solubility
water: soluble 1,260 g/L at 20 °C
density
2.13 g/cm3 at 20 °C
anion traces
chloride (Cl-): ≤10 mg/kg, phosphate (PO43-): ≤5 mg/kg, sulfate (SO42-): ≤5 mg/kg
cation traces
Ag: ≤5 mg/kg, Al: ≤5 mg/kg, Ba: ≤5 mg/kg, Bi: ≤5 mg/kg, Ca: ≤5 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg, Cr: ≤5 mg/kg, Cu: ≤5 mg/kg, Fe: ≤5 mg/kg, Hg: ≤0.1 mg/kg, K: ≤200 mg/kg, Li: ≤5 mg/kg, Mg: ≤5 mg/kg, Mn: ≤5 mg/kg, Mo: ≤5 mg/kg, Ni: ≤5 mg/kg, Pb: ≤5 mg/kg, Sr: ≤5 mg/kg, Tl: ≤5 mg/kg, Zn: ≤5 mg/kg
SMILES string
[OH-].[Na+]
InChI
1S/Na.H2O/h;1H2/q+1;/p-1
InChI key
HEMHJVSKTPXQMS-UHFFFAOYSA-M
General description
Application
It may be used in the synthesis of following compounds:[3]
- alkylaryl amidosulfobetaines
- (3-[ 4-teroctylphenoxyethoxyethoxyethyl] dimethylammonio propane sulfonate (XOSB)
- trisulfobetaines (TriSBn)
Other Notes
1 of 1
This Item | |||
|---|---|---|---|
| grade ACS reagent, puriss. p.a. | grade - | grade reagent grade | grade semiconductor grade |
| assay ≥98.0% (T) | assay 98-100.5% | assay 97% | assay 99.99% trace metals basis |
| form pellets | form pellets | form powder | form pellets |
| solubility water: soluble 1,260 g/L at 20 °C | solubility water: soluble 1260 g/L at 20 °C | solubility water: soluble 1260 g/L at 20 °C | solubility water: soluble 1,260 g/L at 20 °C |
| impurities ≤0.0003% total nitrogen (N), ≤1.0% sodium carbonate (Na2CO3), ≤0.0005% silicon dioxide (SiO2) | impurities ≤0.0005% total nitrogen (N), ≤0.002% heavy metals (as Pb), ≤0.5% Na2CO3 | impurities - | impurities <1% Na2CO3 |
| cation traces Ag: ≤5 mg/kg, Ba: ≤5 mg/kg, Ca: ≤5 mg/kg, Co: ≤5 mg/kg, Cu: ≤5 mg/kg, Hg: ≤0.1 mg/kg, Li: ≤5 mg/kg, Mn: ≤5 mg/kg, Ni: ≤5 mg/kg, Sr: ≤5 mg/kg, Zn: ≤5 mg/kg, Al: ≤5 mg/kg, Cd: ≤5 mg/kg, Fe: ≤5 mg/kg, Mg: ≤5 mg/kg, Pb: ≤5 mg/kg, Bi: ≤5 mg/kg, K: ≤200 mg/kg, Tl: ≤5 mg/kg, Cr: ≤5 mg/kg, Mo: ≤5 mg/kg | cation traces Al: ≤0.001%, As: ≤0.0002%, Ca: ≤0.001%, Fe: ≤0.001%, Hg: ≤0.0001%, K: ≤0.1%, Pb: ≤0.5 ppm | cation traces - | cation traces - |
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signalword
Danger
hcodes
Hazard Classifications
Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A
Storage Class
8B - Non-combustible corrosive hazardous materials
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
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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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