Potassium sodium tartrate tetrahydrate
puriss., 99.0-101.0% (calc. on H2O free substance), meets analytical specification of Ph. Eur., BP, USP, FC, E 337
Manufacturer: Sigma Aldrich
CAS Number: 6381-59-5
Synonym(S): L(+)-Tartaric acid potassium Sodium salt, Rochelle salt, Seignette salt
Select a Size
| Pack Size | SKU | Availability | Price |
|---|---|---|---|
| 500 G | 25508-500-G | In Stock | ₹ 5,250.13 |
| 1 KG | 25508-1-KG | In Stock | ₹ 7,555.85 |
| 6 X 1 KG | 25508-6-X-1-KG | In Stock | ₹ 29,736.28 |
| 5 KG | 25508-5-KG | In Stock | ₹ 35,884.88 |
25508 - 500 G
In Stock
Quantity
1
Base Price: ₹ 5,250.13
GST (18%): ₹ 945.023
Total Price: ₹ 6,195.153
grade
puriss.
Quality Level
200
Assay
99.0-101.0% (calc. on H2O free substance)
form
solid
optical activity
[α]20/D +28.0 to +30.0°
quality
meets analytical specification of Ph. Eur., BP, USP, FC, E 337
impurities
acidity or alkalinity, in accordance residual solvent, complies≤0.001% heavy metals (as Pb)≤0.003% total nitrogen (N)≤0.004% ammonium (NH4)≤0.004% free alkali (as NaOH)≤0.0075% free acid (as C4H6O6)24-26% water (Karl Fischer)
loss
21-26% loss on drying, 150 °C, 3 h
pH
6.5-8.5 (20 °C, 1%)
anion traces
chloride (Cl-): ≤20 mg/kgsulfate (SO42-): ≤50 mg/kg
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Description
- General description: Potassium sodium tartrate tetrahydrate (Rochelle salt) exists in the ferroelectric phase in the temperature range of 255 to 297K. In this phase, it crystallizes in the monoclinic system and exhibits space group P21. Saturated aqueous solution of potassium sodium tartrate (Rochelle salt) has been used for the preparation of its tetrahydrate crystals.[1]
- Application: Potassium sodium tartrate tetrahydrate has been used in the β-1,3-glucanase activity assay.[4]
SAFETY INFORMATION
WGK
WGK 1
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
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grade: puriss.
Quality Level: 200
Assay: 99.0-101.0% (calc. on H2O free substance)
form: solid
optical activity: [α]20/D +28.0 to +30.0°
quality: meets analytical specification of Ph. Eur., BP, USP, FC, E 337
impurities: acidity or alkalinity, in accordance residual solvent, complies≤0.001% heavy metals (as Pb)≤0.003% total nitrogen (N)≤0.004% ammonium (NH4)≤0.004% free alkali (as NaOH)≤0.0075% free acid (as C4H6O6)24-26% water (Karl Fischer)
loss: 21-26% loss on drying, 150 °C, 3 h
pH: 6.5-8.5 (20 °C, 1%)
anion traces: chloride (Cl-): ≤20 mg/kgsulfate (SO42-): ≤50 mg/kg
grade: __
Quality Level: 200
Assay: 99-102% (perchloric acid titration)
form: solid
optical activity: __
quality: meets analytical specification of DAC, E336
impurities: ≤0.001% ammonium (NH4)≤0.001% heavy metals (as Pb)
loss: ≤4% loss on drying, 150 °C, 4 h
pH: 7-9 (20 °C, 0.1%)
anion traces: chloride (Cl-): ≤500 mg/kgoxalate (as oxalic acid): ≤100 mg/kgsulfate (SO42-): ≤1000 mg/kg
grade: __
Quality Level: 200
Assay: 99-102% (perchloric acid titration)
form: solid
optical activity: __
quality: meets analytical specification of DAC, E336
impurities: ≤0.001% ammonium (NH4)≤0.001% heavy metals (as Pb)
loss: ≤4% loss on drying, 150 °C, 4 h
pH: 7-9 (20 °C, 0.1%)
anion traces: chloride (Cl-): ≤500 mg/kgoxalate (as oxalic acid): ≤100 mg/kgsulfate (SO42-): ≤1000 mg/kg
