72069
Sodium tungstate dihydrate
Manufacturer: Sigma Aldrich
CAS Number: 10213-10-2
Synonym(S): Tungstic acid sodium salt dihydrate
Select a Size
| Pack Size | SKU | Availability | Price |
|---|---|---|---|
| 25 G | 72069-25-G | In Stock | ₹ 5,141.88 |
| 100 G | 72069-100-G | In Stock | ₹ 16,096.78 |
72069 - 25 G
In Stock
Quantity
1
Base Price: ₹ 5,141.88
GST (18%): ₹ 925.538
Total Price: ₹ 6,067.418
product line
BioUltra
Quality Level
100
Assay
≥99.0% (T)
form
crystals
impurities
insoluble matter, passes filter test≤0.001% total nitrogen (N)≤0.1% free alkali (as NaOH)
pH
9.5-11.5 (25 °C, 1 M in H2O)
mp
698 °C (lit.)
solubility
H2O: 1 M at 20 °C, clear, colorless
anion traces
chloride (Cl-): ≤50 mg/kgsulfate (SO42-): ≤100 mg/kg
cation traces
As: ≤0.5 mg/kgCa: ≤10 mg/kgCd: ≤5 mg/kgCo: ≤5 mg/kgCr: ≤5 mg/kgCu: ≤5 mg/kgFe: ≤5 mg/kgK: ≤50 mg/kgMg: ≤5 mg/kgMn: ≤5 mg/kgNi: ≤5 mg/kgPb: ≤10 mg/kgZn: ≤5 mg/kg
Other Options
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Description
- General description: Sodium tungstate dihydrate is a sodium salt of tungstic acid,[1] which occurs as white colorless crystals.[2]
- Application: Sodium tungstate dihydrate has been used in bioluminescence assays[3] and to synthesize polycrystalline samples.[4]
- Other Notes: Stain in electron microscopy (nucleic acids, certain glycoproteins)[5]; Protein precipitant[6].
SAFETY INFORMATION
Pictograms
Signal Word
Warning
Hazard Statements
Precautionary Statements
Hazard Classifications
Acute Tox. 4 Oral
WGK
WGK 2
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
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product line: BioUltra
Quality Level: 100
Assay: ≥99.0% (T)
form: crystals
impurities: insoluble matter, passes filter test≤0.001% total nitrogen (N)≤0.1% free alkali (as NaOH)
pH: 9.5-11.5 (25 °C, 1 M in H2O)
mp: 698 °C (lit.)
solubility: H2O: 1 M at 20 °C, clear, colorless
anion traces: chloride (Cl-): ≤50 mg/kgsulfate (SO42-): ≤100 mg/kg
cation traces: As: ≤0.5 mg/kgCa: ≤10 mg/kgCd: ≤5 mg/kgCo: ≤5 mg/kgCr: ≤5 mg/kgCu: ≤5 mg/kgFe: ≤5 mg/kgK: ≤50 mg/kgMg: ≤5 mg/kgMn: ≤5 mg/kgNi: ≤5 mg/kgPb: ≤10 mg/kgZn: ≤5 mg/kg
product line:
BioUltra
Quality Level:
100
Assay:
≥99.0% (T)
form:
crystals
impurities:
insoluble matter, passes filter test≤0.001% total nitrogen (N)≤0.1% free alkali (as NaOH)
pH:
9.5-11.5 (25 °C, 1 M in H2O)
mp:
698 °C (lit.)
solubility:
H2O: 1 M at 20 °C, clear, colorless
anion traces:
chloride (Cl-): ≤50 mg/kgsulfate (SO42-): ≤100 mg/kg
cation traces:
As: ≤0.5 mg/kgCa: ≤10 mg/kgCd: ≤5 mg/kgCo: ≤5 mg/kgCr: ≤5 mg/kgCu: ≤5 mg/kgFe: ≤5 mg/kgK: ≤50 mg/kgMg: ≤5 mg/kgMn: ≤5 mg/kgNi: ≤5 mg/kgPb: ≤10 mg/kgZn: ≤5 mg/kg
product line: __
Quality Level: 100
Assay: __
form: pellets
impurities: __
pH: 7-14
mp: __
solubility: __
anion traces: __
cation traces: __
product line:
__
Quality Level:
100
Assay:
__
form:
pellets
impurities:
__
pH:
7-14
mp:
__
solubility:
__
anion traces:
__
cation traces:
__
product line: __
Quality Level: 100
Assay: __
form: pellets
impurities: __
pH: 7-14
mp: __
solubility: __
anion traces: __
cation traces: __
product line:
__
Quality Level:
100
Assay:
__
form:
pellets
impurities:
__
pH:
7-14
mp:
__
solubility:
__
anion traces:
__
cation traces:
__
product line: __
Quality Level: 100
Assay: 95%
form: solid
impurities: __
pH: __
mp: 143-147 °C
solubility: __
anion traces: __
cation traces: __
product line:
__
Quality Level:
100
Assay:
95%
form:
solid
impurities:
__
pH:
__
mp:
143-147 °C
solubility:
__
anion traces:
__
cation traces:
__