Poly(vinyl alcohol) NEW

[Air & Water Reactions] Water soluble.

[Fire Hazard] This chemical is combustible. The dusts of this chemical are a slight explosion hazard when exposed to flame. (NTP, 1992)

[Health Hazard] SYMPTOMS: Inhalation of the dust of this chemical may cause irritation of the nose and throat and cause coughing and chest discomfort if heated above 390° F. The dusts may also irritate the eyes. Implantation of this chemical into the breast has been associated with fibrosis. ACUTE/CHRONIC HAZARDS: This compound may be harmful by ingestion and inhalation. It may cause irritation. When heated to decomposition it emits acrid smoke, irritating fumes and toxic fumes of carbon monoxide and carbon dioxide. (NTP, 1992)

[Reactivity Profile] Mixtures of alcohols with concentrated sulfuric acid and strong hydrogen peroxide can cause explosions. Example: an explosion will occur if dimethylbenzylcarbinol is added to 90% hydrogen peroxide then acidified with concentrated sulfuric acid. Mixtures of ethyl alcohol with concentrated hydrogen peroxide form powerful explosives. Mixtures of hydrogen peroxide and 1-phenyl-2-methyl propyl alcohol tend to explode if acidified with 70% sulfuric acid [Chem. Eng. News 45(43):73. 1967; J, Org. Chem. 28:1893. 1963]. Alkyl hypochlorites are violently explosive. They are readily obtained by reacting hypochlorous acid and alcohols either in aqueous solution or mixed aqueous- carbon tetrachloride solutions. Chlorine plus alcohols would similarly yield alkyl hypochlorites. They decompose in the cold and explode on exposure to sunlight or heat. Tertiary hypochlorites are less unstable than secondary or primary hypochlorites [NFPA 491 M 1991]. Base-catalysed reactions of isocyanates with alcohols should be carried out in inert solvents. Such reactions in the absence of solvents often occur with explosive violence [Wischmeyer 1969].

[Chemical properties] Polyvinyl alcohol(9002-89-5) is a hydrolysis product of polyvinyl acetate, rather than by the polymerization of monomers; the molecular backbone contains . The specific gravity of this product 1.25 to 1.35 and the melting point is 212 ~ 267 ℃. It is soluble in hot water and hot dimethyl sulfoxide. Animal experiments show that polyvinyl alcohol, without stimulation, causes no significant toxicity upon subcutaneous, intramuscular, intravenous injection. Polyvinyl alcohol resin products appear as white solid with the appearance of sub-floc, granular and powder; it is non-toxic, tasteless, non-polluting and is soluble in water of 80--90 ℃. Its aqueous solution has good adhesiveness and film-forming property; it can resist most organic solvents such as oils, lubricants and hydrocarbons; it has long-chain polyol esterification, etherification, acetalization and other chemical properties.

[Uses] It is mainly used in the textile industry, as the raw materials of warp pulp, fabric finishing agent, vinylon fiber; interior and exterior wall paint of the building, adhesives; chemical industry use it as a polymerization emulsifier, dispersant and polyvinyl formal, acetal, butyrate aldehyde resin; paper industry use it as a paper binder; agriculture use it as soil improvers, pesticide adhesion synergist and polyvinyl alcohol film; it can also be used for daily cosmetics and high-frequency quenching agent and so on.

Our advantages:

1.We have high purity products, we will strictly control the quality, and we always insist on reasonable and flexible price to match the high quality.

2. Spot samples can be shipped quickly after payment, saving time for receiving goods.

3.Full experience of large numbers containers loading in Chinese sea port.

4. Have professional customs clearance capabilities and the best after-sales service.

Our Service

1.Cooperate with research institutions, we strictly control the process from raw material to finished product.

2.The customer comes first, we provide reasonable price, high quality product and prompt shipment.

3.We can send the goods to your delivery address directly. It is relatively safe and fast.

4.Quick and clear response to customers questions.

5.We could make our price discount if you place a substantial order with us.

6.Products can be packaged according to customer requirements.

FAQ

Q1: Can I get samples?

Answer: Of course you can. For most products, we can provide you with free samples, and the shipping costs should be borne by you.We also accept small quantities of 10g, 100g and 1kg orders to evaluate your quality of our products.

Q2: How to place an order for your product?

Answer: First let us know your requirements or applications. Secondly, we quote according to your request or our suggestion.Third, the customer confirms the samples and deposits for the form al order. We can offer discounts for large orders.

Q3: Can you tell us something about shipping?

Shipping can be DHL, UPS, TNT, EMS, Fedex, etc.

If you want to order in large quantities, you can do it by air or sea.

Transportation costs vary according to the mode of transportation and the country you are arriving in. You can tell me your country and mode of transportation, and we will give you the freight price as soon as possible.

Q4: How to make payment?

Payment method: T/T, L/C etc.