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Dissolved Oxygen Analyzer For Water Testing

Supplier From China
Oct-09-24

Dissolved Oxygen Meter Introduction
The technology of this dissolved oxygen meter is from Germany,We use circuit technology that other manufacturers are not to make now,so we offer exceptionally long warranty time: 3 years.It integrates VariPower�® wide-range power supply chip,so it can work at any power 20...253 V AC/DC, even with large fluctuations in supply voltage
Dissolved Oxygen Meter Application
Fermentation tank Biotechnology Pharmaceuticals industry Food and beverage Chemical production Paper, starch pulp, petroleum smelting, Ion exchanger regeneration, boiler water, cooling water etc.


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Aug-08-08
Supplier From Shanghai, China, China
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Jul-29-19
Buyer From Ho Chi Minh, Viet Nam
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Jan-08-18

Aluminium Sulphate

$180.00
MOQ: 27  Meters
Sample Available
 
Product Name:Aluminium sulphate
Molecular Formula:AL2(SO4)3
Hs Code: 2833220000
CAS Code:10043-01-3
Standard:HG2225-2010

Shape:flake, powder, 2-4cm lump and 2-5mm/3-8mm granular

Properties:There are two types,anhydrous aluminium sulphate and aluminium sulphate octadecahydrate. In normal condition , it is AL2(SO4)3 18H2O; AL2(SO4)3 14H2O after efflorescence, can be white powder , glittering flaky or crystalline flakes, odorless, sweet to slight bitter.

Use:Sewage Treatment, treatment of drinking water, Sizing of paper , Cement Additive.

Specifications
Item Name Standard
AL2O3 15.6% 16.5% 17%
Fe2O3 ¤0.5 % 0.005 % 0.004%
PH value .0 3.0 3.0
Water insoluble matter 0.2% 0.04% 0.03%

Packing 25kg or 50kg or 1000kg in plastic lined woven bag
GOLD Member
May-08-17
 
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.
GOLD Member
Feb-02-18
 
Commodity: Ammonium bicarbonate Food grade
Molecular formula:NH4HCO3
Molecule Weight: 79.05
H.S code: 2836994000
CAS: 1066-33-7

Product Physical Properties
WHITE POWDER CRYSTAL, SPECIFIC GRAVITY IS 1.586, IT CANDISSOLVE IN WATER, BUT CANT DISSOLVE IN ALCOHOL AND ACETINE.

Specifications:
Appearance: white free-flowing crystalline powder without agglomeration
Purity as Ammonium Bicarbonate ,% by weight 99.5 (minimum)
Chloride (as Cl), % by weight 0.20(maximum)
Sulphates (as SO4),% by weight 0.10(maximum)
Iron (as Fe), % by weight 0.004(maximum)
Nonvolatile matter, % by weight 0.10(maximum)
Heavy metals (as Pb), ppm 2.50(maximum)
Copper (as Cu), ppm 5.0(maximum)
Arsenic (as As), ppm 0.6(maximum)
Tarry matter To pass test
Oil Content Less than 10 ppm
Melamine Content NIL

USAGE
BAKING FOODS SUCH AS CRISP CAKE, BISCUIT ETC. IN ADDITION, ITALSO WIDELY USED IN CHEMICAL FIELD SUCH AS FLOUR BRIGHTENING AGENT,RARE EARTH DEEP PROCESSING, MEDICINE MIDBODY, PLASTICS PROCESSING,ELECTRONIC ELEMENT ETC.

PACKING
OUTSIDE IS WEAVE BAG OR PAPER BAG, INSIDE IS FOOD PLASTICSBAG, 25KG/BAG. THE PACKING ALSO CAN ACCORDING TO CONSUMERS REQUEST.

STORAGE
Stored in a cool, ventilated, dry place.
GOLD Member
Jan-08-18

Calcium Chloride

$150.00
MOQ: 20  Meters
Sample Available
 
Commodity: Calcium chloride
Molecular formula CaCl2
H.S code 28272000

Product feature
Calcium chloride is an inorganic salt, which exists as solid or liquid. Solid calcium chloride is a white, crystal substance in the form of flake, granule, pellet or powder. With different crystallized water contents, it can be dihydrate or anhydrous.

Liquid calcium chloride is a colorless, clear solution. As calcium chloride has such properties as quick dissolving, exothermic ability, attracting moisture from the air and surroundings, dissolving at very low temperature,

Specifications:
Analysis Item Standard
Calcium chloride (CaCl2) 74%min,77% min,94%min
Total Chlorinated Alkali: (NaCl) 5.0%max
Magnesium Chloride(MgCl2) 0.5%max
Insoluble matter in water 0.25%max
Calcium Sulfate (CaSO4): 0.2%max
Ferric Oxide (Fe2O3) 0.025%max
Heavy Metal as Cu., Pb., Cd., Cr., Hg., As 0.005%max

Application
Mainly used in drying, melting snow for airport express and street, concrete desiccant and concreting fast, removing dust and oil industry.

Exporting Packing :Plastic woven bag with PE ,25kg/50kg/1000kgs net weight or 25kg x 40 bags into one big bag or 40 bags on a pallet with shrink-wrapped

Means of transportation :in containers or by bulk vessel with large quantity
GOLD Member
Feb-02-18
 
Commodity: Sodium Hydrosulfite
Other name: Synonyms: Sodium Hydrosulphite; Sodium Dithionite; Dithionous acid, Disodium salt; Sodium Sulfoxylate
CAS No.: 7775-14-6
Molecular Weight: 174.10
Chemical Formula: Na2S2O4

Product Description
Appearance: White, crystalline powder.

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
GOLD Member
Feb-02-18
 
Commodity: Sodium Bisulfite
Molecular Formula: NaHSO3
Molecular Weight: 104.06

Properties: White monoclinic crystalline powder with sulfur dioxide odor; relative density: 1.49; very easily soluble in water; can be decomposed when heated; slightly soluble in ethanol; aqueous solution is acidic; has strong reducing property; can be oxidized in the air or loose sulfur dioxide.

Quality Standard: HG/T3492-80
Technical Indicator High-purity grade Acrylic grade Food grade Refined grade Industrial grade 1
NaHSO3 % 99.5
Insol. in water % 0.003, 0.005, 0.03, 0.04, 0.05
Chloride(Cl) % 0.003, 0.004
Iron(Fe) % 0.001 0.002 0.005
Heavy metal(Pb) 0.001
Arsenic(As) % 0.0001
Clarity test Qualified

Use: It is used in the bleaching of cotton textiles; as reducing agent in dyes, paper-making, leather, chemical synthesis; in the manufacture of pharmaceutical intermediates, developer, food bleacher, antiseptic and anti-oxidants.

Packing: In PP woven bag lined with PE bag; paper-plastic composite bag, and kraft paper bag etc.

Net wt.: 25/50/1000 kgs/bag or upon clients' request.
GOLD Member
Feb-02-18
 
Commodity:Sodium sulfite
Molecular Formula: Na2SO3
Molecule Weight: 126.04
Appearance: white or light yellow crystalline powder

Item Value
Top-grade First grade Qualified product
sodium sulfite (Na2SO3),% 98.0, 96.0, 93.0
Fe,% 0.003 0.005 0.02
water-Insoluble ,% water-Insoluble ,% 0.02, 0.03, 0.05
Free alkali(as Na2SO3),% 0.10, 0.40, 0.80
Sulfate(as Na2SO4),% 2.5
Chloride(as NaCl),% 0.10

Uses: used in leather and tannage, plant bleaching agent, reductant

Packing: in polythene plastic bag with a polypropylene overbag, paper-plastic composite bag, kraft bag, etc.

Net weight: 25,50,1000kilograms per bag or following your demand.

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