Chemical Name:4-Hydroxybenzoic acid
Trade Name:p-oxybenzoic acid
Molecular Formula:C7H6O3
Molecular Weight:138.12
CAS No.:99-96-7
Properties:white odorless crystalline powder, easily soluble in hot water and alcohols, aethers and acetone,
slightly soluble in cold water and benzene, insoluble in carbon bisulfide; relative density is 1.46
Use: Can be used as antiseptic, intermediate of dyes, pharmaceuticals; as main material of liquid crystal polymers; as material of pesticide intermediate
Specification
Item Specification
Polymer Grade Technical Grade
Appearance white crystal powder white crystal powder
Purity(on dry base) % 99.6 99.0
Melting Point 214-217 212-216
Odor odorless odorless
Solubility Clear and transparent clear and transparent
Loss on Drying % 0.20 0.50
Color(Pt-Co) 10 40
Ash % 0.02 0.15
Sulfate(SO42-) 0.01 0.05
Chloride(Cl-) % 0.005 0.02
Phe% 0.01 0.10
Salicylic Acid % 0.02 0.10
4-Hydroxyisophthalic Acid(HIPA) ppm 500 /
Insolubles in Metha ppm 50 /
Potassium(K+) ppm 5 /
Sodium (Na+) ppm 5 /
Iron (Fe) ppm 5 /
Ca2++Mg2+ppm 5 /
Supplier: 1. carbon black
2. rubber crumb
3. precipitated silica
4. silica quartz ore purity: 98% available, silica quartz powder/purity: 99.9% available, silica lumps purity: 99% available
5. calcium chloride powder 74% cacl2 92% cacl2 94%
6. magnesium chloride flake
7. sodium meta bisulphite (food grade 94 96%)
8. red onion as per your required size.
9. sodium acetate anhydrous 99% sodium acetate trihydrate crystal 99%
10.pet preform & fiber, bottle, flakes,
11.bopp tapes
12. capsicum or bell pepper, ready to eat foods, ready green paste like ginger, garlic paste Services: We also do logistic work for cif and we have 3rd party facilities like sgs on client chargeable base.
The primary use of Ammonium Sulphate is as a fertilizer for alkaline soils. In the soil the ammonium ion is released and forms a small amount of acid, lowering the pH balance of the soil, while contributing essential nitrogen for plant growth. The main disadvantage to the use of Ammonium Sulphate is its low nitrogen content relative to Ammonium Nitrate, which elevates transportation costs.
It is also used as an agricultural spray adjuvant for water soluble insecticides, herbicides, and fungicides. There it functions to bind iron and calcium cations that are present in both well water and plant cells. It is particularly effective as an adjuvant for 2,4-D (amine), glyphosate and glufosinate herbicides.
Physical State: Needle-like lustrous and dark purple crystal. It can dissolve in water, and it is a strong oxidant. Melting Point :270 C ,decompound Specific Gravity :2.703 ,Solubility in water :6.4 g/100 mL (20C) ,Stability :Stable under ordinary conditions
Use
Mainly used in medical industry, water treatment, metallurgical industry, chemical industry and food industry.
Quality Standard
Item Standard BP2000
Appearance purple noodle crystal
Purity 99.3% min
Chloride 0.01% max
Sulfate 0.05% max
Insoluble matter in water 0.15% max
Moisture 0.5% max
As 20 ppm max
Cd 50 ppm max
Cr 50 ppm max
Hg 10 ppm max
Pb 50 ppm max
Se 50 ppm max
Ni 50 ppm max
Sb 50 ppm max
Packing and Storage
Packing: 50kg net weight new galvanized drums with P.E. Liner. Stored in a cool, ventilated, dry place.
English name:Â Calcium Nitrite
Molecular formula:Â Ca(NO2)2
Molecular weight:Â 132
CAS NO. 13780-06-8
HS CODE:Â 28341000
UN NO.: 2627 5.1 type oxidizing agent
Properties:Â White powder without crystal water. It is tasteless and toxic. Easily in water and presents light yellow solution.
Specifications:
Item Superior grade First grade Second grade
Calcium Nitrite[Ca(NO2)2Â as dry basis]% 94 92 90
Calcium Nitrate[Ca(NO3)2Â as dry basis]% <4 <5 <6
Calcium hydroxide[Ca(OH)2Â as dry basis]% <1.0 <1.0 <1.0
Moisture % <1.0 <1.0 <1.0
Water insoluble matter % <0.6 <1.0 <1.0
Uses:
1. Antifreezing agent.
2. Inhibitor of steel in concrete.
3. Can prepare compound early strength agent.
Packing 25/50/1000KG woven bag lined with plastic or according to customer's requirements.
Product Feature
Odor: Slight irritative.
Specific Gravity: Unavailable
Solubility: Soluble in water.
Density: 2.19
pH: 6-7
pH Test-Method: PH test paper.
% Volatiles by volume @ 21C (70F): 0
Boiling Point: Not applicable.
Melting Point: >300 C Decomposes.
Vapor Pressure (mm Hg): No information found.
Bulk Density: ~0.9
Evaporation Rate (BuAc=1): No information found.
Application
1. Widely used in textile industry for vat dyeing, reduction cleaning, printing and stripping, textile textile bleaching .
2. bleaching paper pulps , especially mechanical pulps, its the most fittable bleaching agent in pulps.
3. bleaching kaolin clay, fur bleaching and reductive whitening, bleaching of bamboo products and straw products,
4. in mineral, the compound of thiourea and other sulphides.
5. as reducing agent in chemical industry.
6. Sodium hydrosulfite food additive grade is used in foodstuffs, as bleaching agent and preservative dried fruits, dried vegetable, vermicelli, glucose, sugar, rock sugar, caramel, candy, liquid glucose, bamboo shoots, mushrooms and canned mushrooms.
Packaging 50kg/100kg net in iron drums with double PVC bags
Product Specification/Models
NDEX 90%, 88%, 85%. FOOD ADDITIVE
Na2S2O4, 90%, 88%, 85%, Fe 20ppm ZincZnOther heavy metal
calculated as Pb, 1ppm
Water Insolubles05%
Shelf Life(month)12
