Supplier : High and low temperature test chambers, constant temperature and humidity test chambers, salt spray corrosion test chambers, light aging test chambers, temperature shock test chambers, ip protection equipment, walk in test chambers, and non standard customization.
Thermal Vacuum Chamber Thermal Vacuum Test Chamberï¼?can provide environmental simulation conditions such as high temperature, low temperature, and low air pressure, with the capability to simulate altitudes above 300,000 meters. It is used to analyze and evaluate the performance and behavior of aerospace electronic products, instruments, meters, components, parts, and other devices under these conditions.
Product name: Chambered Nautilus Shell
Material: Organic Material
Product Type: Seashell
Origin: Vietnam.
Color: Natural
Packaging: In bag then styrofoam box
Brand Name: 99 Gold Data
Payment and Delivery Terms:
- Payment: T/T (50% in advance, balance negotiable).
- Delivery: Fast and reliable shipping with this secure packaging.
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.
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.
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
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.
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
Prperties: The prduct is a white needle crystal r pwder. SP. GR. 2.8823.13g/ cm3, sublimatin temp. 1272Celsiur scale.Its slightly sluble in water and greatly sluble in HF liquid. The chemical prperty fr the high density aluminum fluride is very steady, but that cntains certain crystal water will be decmpsed int Al23 at high temperature with HF being released.
Specificatin:
grade chemical cmpsitin % Physical character
F Al N2 Fe2342- P25 LI Bulk dity g/cm3
AF-0 61.0 31.5 0.30 0.10 0.06 0.10 0.03 0.5 1.5
AF-1 60.0 31.0 0.40 0.30 0.10 0.6 0.04 1.0 1.3
AF-2 58.0 29.0 2.8 0.30 0.12 1.0 0.04 5.5 0.7
AF-3 58.0 29.0 2.8 0.35 0.12 1.0 0.04 5.5 0.7
Uses: Its mainly used as an adjusting agent fr electrlyte in aluminum smelting by fused salt electrlysis, als in ceramic glaze, catalyst and flux f nnferrus metal metallurgy etc.
Brief Intrductin f the Prductin Technics
In the Hydrgen Fluride Reacting Furnace which is heated utside, Vitril reacts with Flurite t create the Hydrgen Fluride Gas and Anhydrus Fluride Plaster by heating in the prcess f prducing Aluminum Fluride, then the Hydrgen Fluride Gas react with dry Aluminium Hydrxide in Fluidized Bed t create t Aluminum Fluride and water.
Packaging
packed in wven PP bags with plastic film inside. Each bag has net weight f 25kgs, 50kgs, 500kgs and 1000kgs.
Walk-in Room Available Constant Temperature and Humidity Test chamber
Applicable range Walk-in Room Available Constant Temperature and Humidity Test chamber are applicable for testing the performance indexes of aeronautic & astronautic products,ships,weapon, accdemies, motorcycle, information electronics,instruments & meters, materials, electronic engineering, electronic products, various electronic elements, foodstuffs, chemistry, building materials, luggage, adhesion tape, printing, packaging, materials, plastics, medical and so on in high-low temperature and humidity alternation environment. Features(Walk-in Room Available Constant Temperature and Humidity Test chamber)
Performance indicators meet the requirements of GB5170, 2, 3, 5, 6-95 Basic parameters verification methods for environmental test equipment for electrical and electronic products low temperature, high temperature, constant humidity and alternating humidity and heat test equipment.
Basic environmental test code for electrical and electronic products test A: low temperature test method GB 2423.1-89 (IEC68-2-1)
Basic environmental test code for electrical and electronic products test B: high temperature test method GB 2423.2-89 (IEC68-2-2)
Basic Environmental Test Rules for Electrical and Electronic Products Test Ca: Constant Humidity and Heat Test Method GB/T 2423.3-93 (IEC 68-2-3)
Basic Environmental Test Rules for Electrical and Electronic Products Test Da: Alternating Humidity-Heat Test Method GB/T423.4-93 (IEC68-2-30)
Control Methods and Characteristics
Balanced temperature control system (BTHC) controls SSR by P.I.D. so that the heating and humidification of the system is equal to the loss of humidity and heat, so it can be used stably for a long time.
2. Refrigeration system
2.1 Compressor: fully packed compressor imported from France
2.2 Refrigerant: environmental friendly refrigerant R404A
2.3 Condenser: fin type heat sink motor
2.4 Evaporator: fin type multi-stage automatic load capacity adjustment
2.5 Other accessories: desiccant, refrigerant flow window, repair valve
2.6 Expansion system: capacity controlled refrigeration system
3. Main technical parameters
Temperature range -40150
Temperature fluctuation ±0.5
Temperature deviation ±2
Heating time about 4 degrees /min (no load non-linearity)
Cooling time about 1 degrees /min (no load non-linearity)
Humidity range 20% ~ 98% R.H
Humidity fluctuation 3% R.H
Humidity deviation 3%
4. Structure and Material
A. Inner box material: stainless steel plate (SUS #304 1.0 mm thick)
B. Outer box material: stainless steel plate is atomized or baking varnish (SUS #304 1.0 mm thick).
C. Insulation material: hard Polyurethane foam and glass wool.
D. Air supply circulation system:
(1) 90 W motor
(2) stainless steel lengthened axle center
(3) Multi leaf fan (SIRCCO FAN)
E. Box door: single door, single window, left open, handle on the right hand side.
(1) Window 270 x 360 x 40 mm 3-layer vacuum layer.
