The '-1L-A' refers to this product packaged in plastic bottles (HDPE), whereas the '-1L-PCA' is packaged in PVC-coated glass bottles.
221228
Ammonium hydroxide solution
ACS reagent, 28.0-30.0% NH3 basis
Ammonium hydroxide solution
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Synonym(s):
Ammonia aqueous, Ammonia water
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| Size/SKU | Availability | Price |
|---|---|---|
25 mL | Estimated to ship onJuly 10, 2026fromMILWAUKEE | $38.50 |
100 mL | Available to ship TODAYfromMILWAUKEE | $40.70 |
500 mL | Available to ship TODAYfromMILWAUKEE | $56.70 |
500 mL | Available to ship TODAYfromMILWAUKEE | $64.00 |
1 L | Estimated to ship onOctober 13, 2026fromMILWAUKEE | $77.50 |
1 L | Available to ship TODAYfromMILWAUKEE | $101.00 |
2.5 L | Available to ship TODAYfromMILWAUKEE | $120.00 |
2.5 L | Available to ship TODAYfromMILWAUKEE | $149.00 |
6 x 500 mL | Available to ship TODAYfromMILWAUKEE | $213.00 |
6 x 500 mL | Estimated to ship TODAYfromMILWAUKEE | $341.00 |
6 x 2.5 L | Available to ship TODAYfromMILWAUKEE | $425.00 |
6 x 2.5 L | Available to ship TODAYfromMILWAUKEE | $571.00 |
About This Item
Linear Formula:
NH4OH
CAS Number:
Molecular Weight:
35.05
NACRES:
NA.21
PubChem Substance ID:
eCl@ss:
38060103
UNSPSC Code:
12352106
MDL number:
Beilstein/REAXYS Number:
3587154
Concentration:
28.0-30.0% NH3
Form:
liquid
Grade:
ACS reagent
grade
ACS reagent
Quality Segment
form
liquid
autoignition temp.
1204 °F
expl. lim.
27 %
concentration
28.0-30.0% NH3
impurities
MnO4- reducers, passes test, ≤0.002% CO2
ign. residue
≤0.002%
pH
11.7 (20 °C)
solubility
water: soluble
density
0.9 g/mL at 25 °C (lit.)
anion traces
chloride (Cl-): ≤0.5 ppm, nitrate (NO3-): ≤2 ppm, phosphate (PO43-): ≤2 ppm, sulfate (SO42-): ≤2 ppm
cation traces
Fe: ≤0.2 ppm, heavy metals: ≤0.5 ppm (by ICP)
storage temp.
2-8°C
SMILES string
[NH4+].[OH-]
InChI
1S/H3N.H2O/h1H3;1H2
InChI key
VHUUQVKOLVNVRT-UHFFFAOYSA-N
General description
Ammonium hydroxide is a weak base mainly used as a source to prepare other ammonium compounds like urea, ammonium carbonate and ammonium sulfate etc.
Application
Ammonium hydroxide solution may be used:
- As a medium to prepare magnetite (Fe3O4) nanoparticles via a modified controlled chemical coprecipitation method.
- As a solvent and reagent to prepare 4-aryl and 4-alkyl-2,6-dimethyl-1,4-dihydro-3,5-pyridinedicarboxylates via Hantzsch synthesis in a microwave cavity synthesizer.
Packaging
Other Notes
ACS specifications same for product 320145
1 of 1
This Item | |||
|---|---|---|---|
| concentration 28.0-30.0% NH3 | concentration 28% NH3 in H2O | concentration ~25% NH3 | concentration 25-30% NH3 |
| grade ACS reagent | grade - | grade - | grade - |
| Quality Level 200 | Quality Level 100 | Quality Level 200 | Quality Level 200 |
| form liquid | form liquid | form liquid | form liquid |
| solubility water: soluble | solubility water: soluble | solubility - | solubility - |
| storage temp. 2-8°C | storage temp. 2-8°C | storage temp. 2-8°C | storage temp. 2-8°C |
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signalword
Danger
hcodes
Hazard Classifications
Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Skin Corr. 1 - STOT SE 3
target_organs
Respiratory system
Storage Class
8B - Non-combustible corrosive hazardous materials
flash_point_f
Not applicable
flash_point_c
Not applicable
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What is the difference between products listed as 1L-A and 1L-PCA? What does this denote? Thank you.
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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.pdfHelpful?
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Salve, il valore di concentrazione è in peso o in volume? Grazie
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The product's concentration is expressed as % weight/weight.
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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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