Nikava Pharmaceutical Industries
Ghatkopar East, Thane, Maharashtra
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Pyrophosphoryl Chloride

We manufacture and provide high quality Pyrophosphoryl Chloride. It is packed in 2.5 Litre glass bottles (Equivalent to 4 kg material) in EPS moulded Themocole. And then four bottles / packs are packed in 9 mm thick wooden boxes which are specially approved by Cargo AIR Craft.


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Pyrophosphoryl Chloride is actually a specialty Chemical for Dexa/Betamethasone phosphate. Pyrophosphoryl Chloride is a colorless liquid with a boiling point of 110°C at 10-mm pressure and can be stored for about 6 months at low temperature without any decomposition.

 

Specifications of Pyrophosphoryl Chloride:

 

Cas no

13498-14-1

Chemical name

Cl2P(=O)OP(=O)Cl2

Formula

Cl4O3P2

Molecular weight

251.76

Properties

colorless, smoking, corrosive liquid

Specific gravity

1.79-1.81

Assay

NLT 99.5 % (Quadra distilled)

Description

It is a colorless liquid with a boiling point of 110°C at 10-mm pressure. The specific density (weight per ml) is between 1.808 to 1.814 at 20°C. It can be stored for about 6 months at low temperature without any decomposition.

Packing

Comes in 2.5 Litre glass bottles (Equivalent to 4 kgs material) which is packed in EPS moulded Themocole packing. Four bottles/ packs are then packed in 9 mm thick wooden boxes which are specially approved by Cargo AIR Craft.

Method of analysis

(a)by Acidity

 

Take 50 ml N/1 NaOH in a 250-ml beaker and chill it in an ice bath. Transfer about 1gm of sample in a chilled N/1 NaOH standard drop by drop with constant stirring. Control the addition of sample in such a way that there is no violent reaction. Set aside the beaker for 10 minutes and heat the beaker in a water bath for about 30 minutes, cool and titrate it with N/1 H2SO4 using Methyl Red/Bromocresol green (7 parts Methyl Red and 80 parts of Bromocresol green) as indicators. The end point being yellow. Retain the solution for Assay (b).1ml N/1 NaOH = 0.04200 gms P2O3Cl4

(b) By Chloride

 

Dilute the content of the beaker from Assay (a) to 250 ml with water. Add 10 ml of nitric acid 50ml of N/10 Silver Nitrate and 3 ml of Nitrobenzene to 50 ml of the diluted sample. /10 Ammonium Thiocynate using Ferric Ammonium Sulfate as indicator. Shake the sample well after each addition of the titrant 1 ml of N/10 AgNO3 = 0.00629 gms of P2O3C14

REACTION

Pyrophosphoryl Chloride reacts with alcohol like (Dexa Methazone or Beta Methazone) and forms a phosphate salt. On addition of Sodium Hydroxide it forms Disodium Phosphate (soluble salt).

 

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Nikava Pharmaceutical Industries

Amee R. Vora(Export Sales Manager)
501/504, Mahesh Apartment Shirmad Rajchandra Marg
Ghatkopar East, Thane - 400077
Maharashtra, India
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