ACCELERATOR
M
Chemical
name: 2-Mercaptobenzothiazole
Molecular
formula: C7H5S2
Molecular
weight: 167.25
Properties:
light yellow powder, non-poisonous, having strange bitter odour. Specific
gravity: 1.42-1.52,
melting
point: 170℃
min, soluble in benzene, chloroform, CS2, alcohol, acetone, caustic and alkali
metal carbonate solution, slightly soluble in got water, insoluble in petrol and
cold water. Combustible, low limit of combustion: 25G/cm3, explosive In powder.
Specifications:
Appearance:
light yellow or grayish white powder or pellet
Initial
melting point: 171.0℃
min
Ash:
0.30% max
Loss
of weight after heating: 0.40% max
Residue
on sieve (100mesh, 150um for powder): 0.1% max
(*residue
on sieve is suitable for powder, not for pellet.)
used:
used as mother substance of mercapto-type-accelerators to produce accelerator
DM, NOBS, NS and etc.
Packing:
packed in plastic woven bag lined with polyethylene light-proof bag.
Net
weight: 25kg/bag
ACCELERATOR
DM
CHEMICAL
NAME: 2.2-Dithiodibenzothiazole
Molecular
formula: C14H8N2S4
Molecular
weight: 332.47
Properties:
light yellow needle crystal, specific gravity : 1.5, ignition point: 180℃,
slightly soluble in benzene at room temperature, dichloromethane, CCl4; acetone,
ether and etc. insoluble in water, ethyl acetate, gasoline and soda.
Specifications:
grade A
grade B
Appearance:
white or light yellow powder or pellet
Initial
melting point:
165.0℃
min
160.0℃
min
Ash:
0.50% max
0.70% max
Loss
of weight after heating:
0.40% max
0.50% max
Residue
on sieve(150um; only for powder): 0.1% max
0.1% max
Used:
used for natural, synthetic and regenerative rubber
Packing:
packed in plastic woven bag lined with plastic bag
Net
weight: 20kg/bag
ACCELERATOR
CZ
CHEMICAL
NAME: N-Cyclohexyl-2benzothiazole-sulfenamide(CBS)
Molecular
formula: C13H16N2S2
Molecular
weight: 264.1
Properties:
Greyish white or light yellow powder, with slight bitter odour, non-poisonous.
Specific gravity: 1.13-1.34, melting point: 94℃min.,
soluble in benzene, toluene, chloroform, CS2, CCL4, dichloroethane, acetone,
insoluble in water, dilute acid, dilute alkali solution and gasoline. It is
slightly discoloured while being used.
Specifications:
Appearance:
Greyish white or light yellow powder
Initial
melting point:
98.0℃
min
Ash:
0.30% max
Loss
of weight after heating(50℃-55℃,
2hours): 0.30%
max
Residue
on sieve(150um): 0.05% max
Used:
rubber curing accelerator with super anti-scorching and short curing time
features. Used for the manufacture of tyres, shoes, tubes, cable and etc.
Packing:
packed in plastic woven bag lined with plastic bag
Net
weight: 25kg/bag
ACCELERATOR
DZ
CHEMICAL
NAME: N,N-Dicyclohexyl-2-benzothiazole-sulfenamide
Molecular
formula: C19H28N2S2
Molecular
weight: 346.58
Properties:
light yellow powder, melting point: 104℃,
easily soluble in benzene, CCl4, dichloromethane, soluble in ethyl acetate,
alcohol, acetone and gasoline, insoluble in water.
Specifications:
Appearance:
light yellow to light brown powder
Initial
melting point:
94.0℃
min
Ash:
0.50% max
Loss
of weight after heating:
0.50% max
Used:
used in tyre products
Packing:
packed in plastic woven bag lined with plastic bag
Net
weight: 25kg/bag
ACCELERATOR
NOBS
CHEMICAL
NAME: N-Morpholinyl-2-benzothiazole-sulfenamide
Molecular
formula: C11H12N2S2O
Molecular
weight: 252.35
Properties:
light yellow powder, non-poisonous. Specific gravity: 1.34-1.40, melting point:
80℃min.,
easily soluble in dichloroethane, acetone, benzene, toluene, chloroform ethyl
acetate, slightly soluble in ether, gasoline, hardly soluble in cold alcohol,
insoluble in water, dilute acid, alkali solution. It maybe decomposed while
being heated, so it should be stored at low temperature. If storage time is
longer(e.g. more than 6 months), scorching tendency may be increased.
Specifications:
grade A
grade B
Appearance:
light yellow powder to yellow pellet
Initial
melting point:
80.0℃
min
78.0℃
min
Ash:
0.30% max
0.40% max
Loss
of weight after heating:
0.50% max
0.50% max
Used:
used as rubber curing accelerator, additive of lubricant and insecticide
Packing:
packed in plastic woven bag lined with plastic bag
Net
weight: 25kg/bag
ACCELERATOR
TBBS
CHEMICAL
NAME: N-Tertiary butyl-2-benzothiazole-sulfenamide
Molecular
formula: C11H14N2S2
Molecular
weight: 238.37
Properties:
commercial product is light yellow or brownish yellow powder or fine pellet,
with strange odour, melting point: 103℃,
special gravity: 1.26-1.32, soluble in alcohol, ether, acetone, benzene, CCl4,
cholroform, CS2 and ethyl acetate,
insoluble in water, dilute acid and dilute caustic solution.
Specifications:
Appearance:
light yellow powder or pellet
Initial
melting point:
105.0℃
min
Ash:
0.50% max
Loss
of weight after heating:
0.50% max
Used:
used as rubber curing accelerator with anti-scorching and fast curing features,
for natural, butadiene rubber, butadiene styrene rubber and so on.
additive of lubricant and insecticide
Packing:
packed in plastic woven bag lined with plastic bag and with sealed mouth.
Net
weight: 25kg/bag
P-Fluorobenzoic
acid
Chemical Name : P-fluorobenzoic acid
Molecular Formula: C7H5FO2
Molecular Weight: 140.11
Properties:
Appearance:
white crystal powder
Melting
point: 184-187℃
Purity:
99%(MIN,HpLC)
Moisture:
0.5%
package: 50Kg paper bucket
Phosphorus pentachloride
Chemical Name: phosphorus pentachloride
Molecular Formula: PCl5
Molecular Weight: 208.4
Properties: Pure product is white or light yellow crystal Melting point is 167℃,Soluble
in Carbon disulfide, Carbon tetrachloride.
Uses: Used in manufacturing medicament, Dye.
Quality standard:
Appearance:
white or light crystal
Purify:
98.5% MIN
Moisture:
0.5% MAX
Package:50Kg plastic bucket inner PP bag
2,3,5-collidine
Chemical Name: 2,3.5-Trimethyl pyridine
Molecular Formula: C8H11N
Molecular Weight: 121.18
Properties: Pure product is colorless oily liquid in R.T.. Boiling point is 184℃.
Light soluble in water. Easily soluble in benzene, alcohol.
Uses: Intermediate of medicament, used in prorating OMPRAZOLE.
Quality standard:
Appearance:
Colorless or light yellow oily lq.
Boiling
point:183-185℃
Purity:
99%(MIN,GC)
Moisture:
0.5%(MAX)
Package: 50kg iron bucket with PP lining.]
P-Methoxyacetophenone
Chemical Name: p-Methoxyacetophenone
Molecular Formula: C9H10O2
Molecular Weight: 150.18
Properties: Pure product is white tabular crystal. Melting point is 38-39℃;
Boiling point is 258℃.
Insoluble in water. Easily soluble in benzene, alcohol.
Uses: flavor and intermediate of medicament
Quality standard:
Appearance:
white tabular crystal
Melting
point: 37-39℃
Purity:
98% (MIN,GC)
Moisture:0.5%(MAX)
Package: 50Kg plastic bucket
2,5-Dichloroacetophenone
Chemical Name: 2,5-Dichloroacetophenone
Molecular Formula: C8H6Cl20
Molecular Weight: 189.04
Properties: Pure products is colorless oily liquid in R.T.. Melting point is
11-13℃;Boiling
point is 251℃.Insoluble
in water. Easily soluble in benzene, alcohol. Uses: Intermediate of pesticide
Quality standard:
Appearance:
Colorless or light yellow oily lq.
Boiling
point: 250-252℃
Purity:
99%(MIN,GC)
P-Dichlorobenzene:
0.35%(MAX,GC)
Sum
of isomers: 0.8% (MAX,GC)
Chloroacetophenone:
0.2%(MAX,GC)
Total
organic impurities: 1.0%(MAX,GC)
Moisture:
0.5%
Package: packed in iron bucket
Veratraldehyde
Chemical Name: 3,4-Dimethoxybenzaldehyde
Molecular Formula: C9H10O3
Molecular Weight: 166.18
Properties: Pure products is white crystal powder. Melting point 42-45℃.Light
soluble in water. Easily soluble in benzene, alcohol.
Uses: Used in making medicament such as Methyldopa, Verazide.
Quality standard:
Appearance
:white or light yellow crystal powder
Melting
point:41-43℃
Purity:
99%(MIN,HPLC)
Moisture:
0.5%
Packages: 50 Kg iron bucket with plastic bag
VERATRIC ACID
Chemical Name: 3,4-Dimethoxybenzoic acid
Molecular Formula: C9H10O4
Molecular Weight: 182
Properties: Pure products is white crystal powder. Melting point is 179-182℃.Easily
soluble in alcohol.
Uses: Used in making medicament such as Prazosin, Tofisopam, Mebeverine
Hydrochloride.
Quality standard:
Appearance:
White crystal powder
Purity(%):
>=99(HPLC)
Melting
point: 179-182℃
Moisture(%):(%)<=0.5
Package: Packed in 25Kg paper bucket with plastic bag.
Omeprazole
Chemical Name:
5-methoxy-2-{[(4-methoxy-3,5-dimethyl-2-pyridinyl)-methyl]sulfinyl}benzimidazole
Molecular Formula: C17H19O3N3S
Quality Standard:
Appearance:
white or off-white crystalline powder.
Assay:
98.0~102.0%
Chromatographic
purity: individual impurity peak is not more than 0.3% sum of all impurity peaks
is not more than 1.0%.
Identification:
1.
Teh Rf value of the principal spot observed in the chromatogram sample
corresponds to that of the principal spot observed in the chromatogram of the
USP Omeprazole RS;
2.
Infrared absorption spectrum of Omeprazole corresponds to that Omeprazole
RS.
Completeness
of solution：Meets
the requirements as directed in USP 23.
Color
of solution: The absorbance of completeness of solution tested at 44 1-cm cells
is not greater than 0.10
Loss
of drying : <=0.5%
Residue
on ignition:<=0.1%
Heavy
metals: <=0.002%
Organic
volatile impurities :Meets the requirements as directed in UPS 23.
Package: 1kg or 5kg Aluminum Tim