* China bank reserve move helps dollar
* Analysts eye interest-rate outlook * Launch of new U.S. ETFs fuels investment interest in PGMs
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By Jan Harvey
LONDON, Jan 12 (Reuters) - Gold prices turned negative and platinum eased off its highs in Europe on Tuesday after China issued its clearest signal yet that it may be close to raising interest rates, thereby denting the appeal of precious metals.
Platinum and palladium prices jumped to their highest since mid-2008 earlier on Tuesday as the launch of new investment products in the United States and hopes for a recovery in industrial demand fuelled buying.
Spot platinum <XPT=> hit a peak of $1,624 an ounce, its highest since August 2008, but eased back to $1,596.50 an ounce at 1240 GMT, against $1,591.50 late in New York on Monday.
Palladium hit an 18-month high of $439 an ounce and was later at $430.50 against $431. Spot gold <XAU=> meanwhile fell to a session low of $1,145.40 an ounce, and was later at $1,147.25 versus $1,151.10.
"The market got a bit scared after China tightened its liquidity. We saw the euro falling, equity markets slipped and that triggered a bout of selling in gold," Standard Bank analyst Walter de Wet said.
"But overall the support remains... at the $1,142 level," he added. "I believe we'll push higher again."
China's central bank said it was raising banks' reserve requirements by 0.5 percentage points from Jan. 18, in the clearest sign yet that it has begun to tighten monetary policy. [
]The move pushed the euro lower against the dollar. Strength in the U.S. unit curbs gold's appeal as an alternative asset and makes dollar-priced commodities more expensive for holders of other currencies.
The move on China's part, which analysts say is a response to fears parts of the economy may be overheating, suggests that policymakers there are focussing on inflation.
A rise in interest rates, while seen by few as imminent, is nonetheless "the next natural move", according to one analyst.
Gold often acts as a hedge against inflation for some investors, but at the same time, its lack of yield makes it unattractive in an environment of rising interest rates.
INTEREST RATES
"Gold doesn't like real interest-rate environments which are very high and positive because it is a non-interest bearing asset," said Michael Lewis, head of commodities research at Deutsche Bank.
"It has a much better chance for competing for investment inflows in low or negative real interest-rate environments."
Platinum and palladium prices meanwhile are still drawing support from the launch of the first U.S.-based platinum and palladium exchange-traded funds, which began trading on the NYSE Arca platform on Friday.
"We have a new player on the market, and that is the new palladium and platinum ETFs being traded in the United States," said Commerzbank analyst Eugen Weinberg. "We have seen strong demand for them in the first two days of trading."
"Chinese car sales data also supported platinum and palladium prices, because it was so strong," he added. "But I think really demand at the moment is coming not so much from industry but from the investment side."
More than half of global platinum and palladium demand comes from carmakers, which use the metals in autocatalysts. Car demand figures are therefore closely watched by PGM traders.
For a graphic showing the relationship of platinum and palladium prices to car sales, click on: http://graphics.thomsonreuters.com/0110/CMD_PLDPLT0110.gif.
China's auto sales surged past those of the United States to reach record levels last year on government incentives, and are poised for solid but slower growth in 2010. [
]Analysts say investment buying sparked by expectations for a recovery in car demand in 2010 could lead platinum and palladium to outperform other precious metals this year. [
]Among other precious metals, silver <XAG=> was at $18.42 an ounce against $18.55.
(Editing by Amanda Cooper)