Ningxia Dadi PVA
Overview
Grades:
0499、0599、1099、1299、1599、1799、1899、2099、2499、2699、
0388、0588、1588、1788、2088、2488
INQUIRE NOW
Specifications
Ningxia Dadi PVA
|
|
Alcoholysis %
|
Purity %
|
Volatile matter %
|
Viscosity (mpa.s)
|
Sodium acetate %
|
PH
|
|
1799
|
≥99.0
|
≥90.0
|
≤7.0
|
22-31
|
≤2.0
|
-
|
|
2099
|
≥99.0
|
≥92.0
|
≤5.0
|
41-55.9
|
≤2.0
|
-
|
|
2499
|
≥99.0
|
≥90.0
|
≤7.0
|
65-79.9
|
≤2.0
|
-
|
|
2699
|
≥99.0
|
≥90.0
|
≤7.0
|
≥80
|
≤2.0
|
-
|
|
1788
|
86.0-88.9
|
92
|
5
|
20～34.9
|
on-the-spot survey
|
5～7
|
|
2088
|
86.0-88.9
|
92
|
5
|
35～44.9
|
on-the-spot survey
|
5～7
|
|
2488
|
86.0-88.9
|
92
|
5
|
45～54.9
|
on-the-spot survey
|
5～7
|
|
2688
|
86.0-88.9
|
90
|
5
|
≥55
|
on-the-spot survey
|
5～7
|
Packing & Storage
| Packing |
In 20kg bag. |
| Storage |
Close, protect from light, ventilated and dry, cool, do not mix storage. |
| Shipping |
Equipped with appropriate varieties and quantities of fire-fighting equipment. |
Free Quote
| Liwei PVA is one of the top 10 PVA factories and the top 100 strongest enterprises
in
anhui province.In 2010,Liwei PVA is evaluated as advanced and high technical
company.
We mainly deals in polyvinyl alcohol,PVA,PVA fiber and raw materials for producing
PVA
like vinyl acetate,calcium carbide.
|
|
For samples, pricing, or more information, please call us at 0086-25-52397803 or mail
to info@china-pva.net or fill out the
following form. We will respond to you as soon as
possible.
|
General Information
Chemical & Physical
Properties
Safety Information
Synthetic Route
| Common Names |
Poly(vinyl alcohol) |
| Structure |
 |
| CAS No. |
9002-89-5 |
Boiling Point(℃) |
23.5±13.0 °C |
| Molecular Weight |
44.053 |
Melting Point(℃) |
230-240ºC |
| Appearance |
White or cream coloured solid |
Vapor Specific Gravity |
/ |
| HS Code |
3905300000 |
Flash Point(℃) |
-28.3±12.8 °C |
| Solubility |
soluble in hot water |
Autoignition Temperature(℃) |
/ |
| Safety Phrases |
S24/25 |
| RIDADR |
NONH for all modes of transport |
| WGK Germany |
1 |
| Packaging Group |
None |
| Hazard Class |
None |
|
|
SYMPTOMS |
PREVENTION |
FIRST AID |
| Inhalation |
Harmful to health |
Filtered Dust Masks，air ventilator |
Oxygen, seek medical attention. |
| Skin |
Irritate |
Wear anti-poison penetration coveralls |
Remove contaminated clothing and rinse with running water. |
| Eyes |
Irritate |
Wear chemical safety glasses |
Lift eyelids and rinse with running water or saline. Seek medical attention.
|
| Ingestion |
Harmful to health |
Smoking is strictly prohibited on the work site. Maintain good hygiene
practices. |
Drink plenty of warm water and induce vomiting. Seek medical attention.
|
|
Firstly, each polyvinyl acetate is made by solution polymerisation, and then the
resulting polyvinyl acetate is hydrolysed rapidly in methanol, ethanol or a
mixture of ethanol and methyl acetate using alkali metal or acid-free as a
catalyst. Alcoholysis is carried out to obtain polyvinyl alcohol |
Frequently Asked Questions
Introduction
Founded in 2002, Ningxia Earth Circle Development Co., Ltd. is recognized as one of the 60
leading enterprises in Ningxia, a pivotal representative of circular economy in the region,
and a prominent player among China's private and chemical industry top 500 enterprises. It
ranks third among Ningxia's private enterprises. In 2017, it was recognized by the Ministry
of Industry and Information Technology of China as one of the first batch of "Green
Manufacturing Demonstration Enterprises." In 2019, it was listed by the regional Industrial
and Information Technology Department as one of the second batch of "Resource Comprehensive
Utilization Demonstration Enterprises." Its PVA and other products were hailed as "Leading
Demonstration Products" in 2019.
Advantage
In the production of PVA, the company primarily utilizes self-supplied raw materials,
embracing a circular utilization and green development model. Additionally, it has formed a
circular industrial chain with its affiliated subsidiaries in the carbide chemical industry,
significantly reducing costs and pioneering an innovative model of comprehensive utilization
of circular economy resources. Recognized by five key ministries and commissions, including
the National Development and Reform Commission and the National Energy Administration, the
company has been listed as one of the thousand national energy-saving pilot units. It has
also been designated as a key resource-saving and environment-friendly enterprise by the
five ministries and commissions, including the National Development and Reform Commission,
the Ministry of Industry and Information Technology, and the Energy Office. Moreover, the
company has been named a pilot unit for circular economy by the regional government. In
2017, it was awarded the title of "First Batch of Green Manufacturing System Demonstration
Enterprise" by the Department of Energy Saving and Comprehensive Utilization of the Ministry
of Industry and Information Technology.
Leave A Message
If you are interested in our products and want to know more details,please leave a message
here,we will
reply you as soon as we can.
