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N-(1-azabicyalo[2,2,2]oct3Syl1,2,3,4tetrahydronaphthalen-1S-ylcarboxamine
Application: Palonosetron intermediate
Specification:
Reference Standard
SPECIFICATION OF ENTERPRISE
items
specification
Appearance
White or pale white crystalline powder.
Specific Optical Rotation
-49Bto -53‹(C=1CCH2Cl2)
Melting ponit
188Ž to 192
Assay
Not less than 98.5“B.
Characteristic
Specifications
Yellow Powder
Purity(%) ¡Ý
99.0
Moisture (%)
8.0
Initial Melting Point of Dry Product ( ¡æ ) ¡Ý
180.0
Specification
Excellent
First Grade
Light Yellow Crystals
Purity(% ) ¡Ý
97.0
Insoluble in Styrene ¡Ü
200mg/kg
500mg/kg
Chlorine ¡Ü
130mg/kg
Water Assay (% ) £¾
15
PBTCA (2-Phosphonobutane -1,2,4-Tricarboxylic Acid)
CAS No. 37971-36-1 & nbsp; &n bsp;
PBTCA has low content of phosphoric, has structural features of both phosphoric acid and carboxylic acid group, which enable its excellent scale and corrosion inhibition properties. Its antiscale property under high temperature is far better than that of organophosphines. PBTCA can improve zinc salt solubility, has good chlorine oxidation tolerance and good composite synergy.
Specification of PBTCA:
Appearance of PBTCA:Colorless or light yellow transparent liquid
Active acid of PBTCA: 50.0 percent min
Phosphorous acid of PBTCA (as PO33-): 0.8percent max
Phosphorous acid of PBTCA (as PO43-): 0.5 percentmax
Density of PBTCA (20centigrade): 1.27 g/cm3 min
pH of PBTCA (1percent solution): 1.5~2.0
Usage of PBTCA:
PBTCA is a high efficient agent as scale and corrosion inhibitor. PBTCA is the excellent stabilizer for zinc salt. PBTCA is widely used in circulating cool water system and oilfield refill water system as scale and corrosion inhibitor, suitable to composite with zinc salt and copolymer. PBTCA can be used in situations of high temperature, high hardness, high alkali and high concentration index. In lavation fields, PBTCA is used as chelating agent and metal detergent.
PBTCA is usually used together with zinc salt, copolymer, organophosphine, imidazole and other Water Treatment Chemicals. When used alone, the dosage of 5-15mg/L is preferred.
Package and Storage of PBTCA:
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