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Magnesium sulphate heptahydrate, 1 kg

≥99 %, p.a., ACS
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Bitter salt, Epson salt
Empirical formula MgSO4 · 7 H2O
Molar mass (M) 246,48 g/mol
Density (D) 1,68 g/cm³
WGK 1
CAS No. [10034-99-8]
EG-Nr. 231-298-2


Guarantee analysis

€41.40/Pack Qty. 

excl. VAT. | 1 kg per Pack Qty.

Art. No. P027.2

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P027.2 1 kg plastic €41.40
P027.3 2.5 kg plastic €76.90
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General information

Determination of the Hydrocarbon Index

The hydrocarbon index is defined as the total of all organic substances that can be extracted with hexane, but cannot be adsorbed in Florisil® (magnesium silicate). On a covalent GC column, these elute between n-decane and n-tetracontane and have a boiling range of 175–525 °C. These include heating oils, diesel fuels, kerosene, lubricants and transmission fluids. Benzines are not detected using this method. Carl ROTH offers an extensive range of products for the determination of the hydrocarbon index in accordance with EN ISO 9377-2-Mod. (DIN H53).



Standards

According to ISO 9377-2-Mod. (DIN H53).

Salts for Analysis

Our salts for analysis are manufactured under strict production guidelines. Analytical purity and best quality reliably characterize each batch. Salts in p.a. quality made by Carl ROTH meet the high requirements for reproducible results. Most of our salts are additionally specified according to international standards like ACS and ISO.

Definition:
p.a.: pro analysi (for analysis)ACS: American Chemical SocietyISO: International Standard Organisation

Analysis of Food

Carl ROTH also offers reagents suitable for food analysis.

On the following pages, you will find the determination of
• Nitrogen according to Kjeldahl
• Sugar
• Mercury
• Trichinae
• Fat

and the determination of the
• Iodine value
• Acid value
• Peroxide value
• Saponification value

as well as other determining factors such as
• Viscosity
• Density
• Hydroxyl value
• Fluoride ions

Analysis certificates

You can search for and download your certificate of analysis for the selected product here. Please provide your batch number.
The following analysis certificates have been found:

Guarantee analysis

Assay (compl.)99,0-102,0 %  
pH-value5,0-8,2  
In H2O insoluble matter≤0,005 %  
Chloride (Cl)≤0,0005 %  
Phosphate (PO4)≤0,001 %  
Nitrate (NO3)≤0,001 %  
Ammonium (NH4)≤0,002 %  
Heavy metals≤0,0005 %  
Arsenic (As)≤0,00005 %  
Copper (Cu)≤0,0005 %  
Potassium (K)≤0,005 %  
Sodium (Na)≤0,005 %  
Lead (Pb)≤0,0005 %  
Strontium (Sr)≤0,005 %  
Calcium (Ca)≤0,004 %  
Iron (Fe)≤0,0005 %  
Manganese (Mn)≤0,0005 %  
Nickel (Ni)≤0,0005 %  
Silicon (Si)≤0,0005 %  
Zinc (Zn)≤0,0005 %  

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